Dictamnus albus is a medicinally important plant distributed throughout South and central Europe, temperate Asia, and Himalayas. The present study was devised for the 1st time to understand the variation in growth characteristics and changes in allocation patterns in relation to altitude and habitats of Kashmir Himalaya. The present investigation revealed extensive variability in morphological parameters both within and across the individuals of different populations. Our findings clearly displayed significant divergence among sites which reveal a definite impact of altitude and habitat on morphological and reproductive features of the species under study. Our results are very useful to introduce the species into cultivation and developing strategies for conservation.
Determination of pH, Dissolved Oxygen, Sulphate, Phosphate and Total Hardness...Hanieh Farzaneh
Sampling of the Physico-chemical factors from two stations on the surface water of Kukkarahalli Lake in Mysore City-India was carried out biweekly over a period of 3 months of 2014. The aims were to determine some Physico chemical parameters of water pollution. Temperature was measured using mercury in glass thermometer. Dissolved oxygen was determined by modified Winkler azide method while Phosphate was determined by Vendo Molybdate Method, Estimation of Sulphate as Sulphur in sample by Nephelometric Method, measurements of total hardness by Complexometric Method. The result revealed that the major causes of water quality deterioration were related to excess usage of fertilizers and chemicals for increasing yield of the crop or releasing the sewage into the lake, due to cumulative effect of human activities where in sewage disposal oxygen is used in decomposing these organic water, eutrophication which causes algal bloom and therefore inability of oxygen to adequately dissolved in the water or the lentic nature of the site where was no serious upturns. As this Lake also used to be a source of water supply to the city of Mysore, and today is a house of different variety of birds, animals, plants and fishes it is very essential to stop sewage disposal and illegal excessive land encroachments to eliminate the eutropohication of the lake, which this results of the Physico-chemical examination of this lake could be helpful in the management of the lake for its water quality and fisheries.
Comments on adding microbeads to Schedule 1 of CEPA 1999 – September 30, 2015LOWaterkeeper
These are the comments by Lake Ontario Waterkeeper, Ottawa Riverkeeper, North Saskatchewan Riverkeeper, and Fraser Riverkeeper on the Order adding microbeads to Schedule 1 of CEPA 1999.
Utilization of Multiple Habitat Sampling Protocol for Macroinvertebrates as Indicators of Water
Quality in Stream Ecosystem in Lawis,
Buruun, Iligan City
Biodiversity and abundance of fish and plankton of nguru lake, northeastern, ...Alexander Decker
This document summarizes a study on the biodiversity and abundance of fish and plankton in Nguru Lake, Nigeria. Twenty-five species of phytoplankton from four divisions were found in the lake. Sixteen species of zooplankton from four groups were present. Twenty-four fish species belonging to thirteen families were identified. The family Cichlidae dominated the fish population. Shannon-Weiner indices indicated some stations had higher diversity and were less polluted than others. The study provides baseline data on the lake's biodiversity to support development of its fisheries potential.
Estuaries are wetland areas where rivers meet the sea that contain brackish water, which is a mixture of fresh and salty water. They provide unique habitats for many plant and animal species that have adapted to the brackish environment. Estuaries and their surrounding wetlands are transitional zones between fresh water and salt water ecosystems. Desalination is a process that removes salt and minerals from water, such as seawater, to produce fresh water suitable for human use or agriculture. It is an important process for obtaining fresh water in dry regions and on ships. However, desalination is more expensive than other fresh water sources due to its high energy usage.
Coastal marine ecosystem scientific paper swissmitchick
The document summarizes a study assessing the macrobenthic flora and fauna in the intertidal area of Dalipuga Beach in Iligan City, Philippines. Two 1-square-meter quadrats were placed in the transect line to analyze species composition. Only one algae species (Phaeophyta) was found in the first quadrat, while the second quadrat contained both algae and seagrass. Water temperature was 26-27°C, soil temperature was 25-26°C, humidity was 26%, sediment was sand and gravel, and pH and salinity were normal. No macrobenthic fauna was found.
This document summarizes a study of zooplankton biodiversity in two reservoirs in Krishnagiri District, Tamil Nadu, India from December 2014 to November 2015. A total of 24 zooplankton species were found in the Kelavarapalli reservoir, including 9 rotifer, 7 cladoceran, 5 copepod, and 3 ostracod species. The Krishnagiri reservoir contained 20 species total, with 8 rotifer, 5 cladoceran, 4 copepod, and 3 ostracod species. Rotifers made up the largest percentage of species in both reservoirs, at 36% in Kelavarapalli and 39% in Krishnagiri. Zooplankton
This document discusses indicator 4 of the 12 indicator model for watershed condition - aquatic biota. It focuses on the distribution, structure, and density of native and introduced aquatic fauna. There are three attributes: 1) aquatic life form presence, 2) native species, and 3) exotic and/or invasive species. Condition is rated on a scale of 1 to 3, with 1 being properly functioning and 3 being impaired. The document provides examples of how the US Forest Service applied the indicator and attributes to evaluate watershed conditions in West Virginia. It also discusses considerations for field applications related to aquatic habitat and sampling strategies.
Determination of pH, Dissolved Oxygen, Sulphate, Phosphate and Total Hardness...Hanieh Farzaneh
Sampling of the Physico-chemical factors from two stations on the surface water of Kukkarahalli Lake in Mysore City-India was carried out biweekly over a period of 3 months of 2014. The aims were to determine some Physico chemical parameters of water pollution. Temperature was measured using mercury in glass thermometer. Dissolved oxygen was determined by modified Winkler azide method while Phosphate was determined by Vendo Molybdate Method, Estimation of Sulphate as Sulphur in sample by Nephelometric Method, measurements of total hardness by Complexometric Method. The result revealed that the major causes of water quality deterioration were related to excess usage of fertilizers and chemicals for increasing yield of the crop or releasing the sewage into the lake, due to cumulative effect of human activities where in sewage disposal oxygen is used in decomposing these organic water, eutrophication which causes algal bloom and therefore inability of oxygen to adequately dissolved in the water or the lentic nature of the site where was no serious upturns. As this Lake also used to be a source of water supply to the city of Mysore, and today is a house of different variety of birds, animals, plants and fishes it is very essential to stop sewage disposal and illegal excessive land encroachments to eliminate the eutropohication of the lake, which this results of the Physico-chemical examination of this lake could be helpful in the management of the lake for its water quality and fisheries.
Comments on adding microbeads to Schedule 1 of CEPA 1999 – September 30, 2015LOWaterkeeper
These are the comments by Lake Ontario Waterkeeper, Ottawa Riverkeeper, North Saskatchewan Riverkeeper, and Fraser Riverkeeper on the Order adding microbeads to Schedule 1 of CEPA 1999.
Utilization of Multiple Habitat Sampling Protocol for Macroinvertebrates as Indicators of Water
Quality in Stream Ecosystem in Lawis,
Buruun, Iligan City
Biodiversity and abundance of fish and plankton of nguru lake, northeastern, ...Alexander Decker
This document summarizes a study on the biodiversity and abundance of fish and plankton in Nguru Lake, Nigeria. Twenty-five species of phytoplankton from four divisions were found in the lake. Sixteen species of zooplankton from four groups were present. Twenty-four fish species belonging to thirteen families were identified. The family Cichlidae dominated the fish population. Shannon-Weiner indices indicated some stations had higher diversity and were less polluted than others. The study provides baseline data on the lake's biodiversity to support development of its fisheries potential.
Estuaries are wetland areas where rivers meet the sea that contain brackish water, which is a mixture of fresh and salty water. They provide unique habitats for many plant and animal species that have adapted to the brackish environment. Estuaries and their surrounding wetlands are transitional zones between fresh water and salt water ecosystems. Desalination is a process that removes salt and minerals from water, such as seawater, to produce fresh water suitable for human use or agriculture. It is an important process for obtaining fresh water in dry regions and on ships. However, desalination is more expensive than other fresh water sources due to its high energy usage.
Coastal marine ecosystem scientific paper swissmitchick
The document summarizes a study assessing the macrobenthic flora and fauna in the intertidal area of Dalipuga Beach in Iligan City, Philippines. Two 1-square-meter quadrats were placed in the transect line to analyze species composition. Only one algae species (Phaeophyta) was found in the first quadrat, while the second quadrat contained both algae and seagrass. Water temperature was 26-27°C, soil temperature was 25-26°C, humidity was 26%, sediment was sand and gravel, and pH and salinity were normal. No macrobenthic fauna was found.
This document summarizes a study of zooplankton biodiversity in two reservoirs in Krishnagiri District, Tamil Nadu, India from December 2014 to November 2015. A total of 24 zooplankton species were found in the Kelavarapalli reservoir, including 9 rotifer, 7 cladoceran, 5 copepod, and 3 ostracod species. The Krishnagiri reservoir contained 20 species total, with 8 rotifer, 5 cladoceran, 4 copepod, and 3 ostracod species. Rotifers made up the largest percentage of species in both reservoirs, at 36% in Kelavarapalli and 39% in Krishnagiri. Zooplankton
This document discusses indicator 4 of the 12 indicator model for watershed condition - aquatic biota. It focuses on the distribution, structure, and density of native and introduced aquatic fauna. There are three attributes: 1) aquatic life form presence, 2) native species, and 3) exotic and/or invasive species. Condition is rated on a scale of 1 to 3, with 1 being properly functioning and 3 being impaired. The document provides examples of how the US Forest Service applied the indicator and attributes to evaluate watershed conditions in West Virginia. It also discusses considerations for field applications related to aquatic habitat and sampling strategies.
The Aquatic Ecosystem is a game-changer in the field of aquariums. Aquatic ecosystems manage water quality and deliver a healthy, clean environment for fish to thrive. This product is at an early stage of its development and has a unique value proposition.
Viability, method and device for horticultural crops with brackish and marine...Agriculture Journal IJOEAR
The method that humanity has adopted to hydrate and thus give life to the plants, imitating the model that was most visible, is the rain. However, the great secret to the contribution of nutrients to the vegetables, the irrigation itself, is on earth, in the groundwater layers and aquifers that hoard and administer the water, keeping every drop of rain and distributing the water through the basins, underground rivers, watering indirectly from the mountain to the sea. The key is in the different circulation velocities of the groundwater because of the nature of the substrates. However, agriculture has taken irrigation from above as we know it and has focused especially on drainage capacity. From this point of view, saline water is not beneficial for irrigated agriculture, but may be the only source of irrigation water in large arid regions, especially in developing countries, where the extreme scarcity of freshwater and the rapidly growing population require more water. When considering the possibility of watering with seawater without desalinating, always by means of capillarity systems, it is essential to take into consideration the different strata of soils, the distance to the groundwater, the composition of seawater, the capacity of drainage, chemical reactions of the soil with salts, etc. The modification of any of these parameters can produce effects of salinization, loss of humidity or desertification among others. This study presents the accumulated experience through the joint collaboration between the Centre for Research in Security and food Control of the Polytechnic University of Catalonia (CRESCA) and the Aqua Maris Foundation in capillary irrigation and it proposes a system and device that allows the controlled development of different vegetal species using brackish and seawater.
This document discusses various types of water resources including ponds, rivers, lakes, and the sea. It provides 3-4 sentences on the importance of each resource. Ponds are described as small, shallow bodies of fresh water that support recreation, water supply, and wildlife. Rivers are classified as permanent, periodic, or episodic and provide habitat, transport, resources, and hydroelectric power. Lakes supply recreation, water, habitat, and are used for commercial activities. The sea moderates climate, supports resources and ecosystems, provides transport, and waste disposal. In conclusion, water resources are essential to life and have been utilized by mankind for various domestic, agricultural, industrial and recreational purposes.
This document discusses different types of water resources including ponds, rivers, and seas. It provides details on the importance of each resource. Ponds are described as small, shallow bodies of fresh water that support wildlife habitat and regulate soil formation. Rivers are classified as permanent, periodic, or episodic and provide habitat, transport, and hydroelectric power. Seas moderate climate and are critical for global food security and economic prosperity through trade, travel, and fisheries. In conclusion, the document emphasizes that water is essential for life and it is important to protect natural water resources.
The document summarizes a study assessing the water quality of the Valapattanam River in Kerala, India using benthic macroinvertebrates as biological indicators. A total of 408 individuals from 20 genera and 14 families were collected from 5 stations along the river during 3 seasons. The downstream stations showed signs of moderate pollution, with tolerant species like Chironomus present. Water quality was found to be impacted by sewage and agriculture, reducing aquatic insect abundance. Biological water quality criteria were used to evaluate the stations, finding slight to moderate pollution depending on the season and location.
The effects of different water quality parameters on zooplankton distribution...iosrjce
IOSR Journal of Environmental Science, Toxicology and Food Technology (IOSR-JESTFT) multidisciplinary peer-reviewed Journal with reputable academics and experts as board member. IOSR-JESTFT is designed for the prompt publication of peer-reviewed articles in all areas of subject. The journal articles will be accessed freely online
The Charles River was historically used by Native Americans and later colonists for transportation, fishing, and industry. Through the 1800s and 1900s, the river became heavily polluted by factories dumping waste and sewage. Efforts in the late 20th century led to improved water quality and protection of wetlands. Today the river remains an important ecosystem and recreational area, though challenges from invasive species, development, and stormwater runoff persist.
This document summarizes the significance of water and future research perspectives on water resources. It discusses how water covers over 70% of the Earth's surface and provides habitat for many organisms. Water plays an important role in biological processes, chemical reactions, soil maintenance, and promoting life. The document outlines the importance of studying different aquatic ecosystems to advance fields like environmental biology and medicine. It also discusses emerging areas of focus for future water resource research, including utilizing new technologies like remote sensing, studying water at global scales, characterizing heterogeneity, and analyzing human impacts on water systems.
This document discusses natural water resources and their importance. It covers 5 main water resources: ponds, rivers, lakes, seas, and their significance. Ponds provide recreation and water supply. Rivers transport organisms and sediments, provide power, and form flood plains. Lakes offer recreation, water supply, habitat, and receive wastewater. Seas moderate climate, support trade/travel, and provide resources like fish. In conclusion, water resources are essential for life and mankind utilizes them for various domestic, agricultural, industrial, and recreational purposes. Their protection is important.
This document discusses natural water resources for science teaching and learning. It covers the importance of ponds, rivers, lakes, and seas. Ponds are small bodies of fresh water that support wildlife habitat and recreation. Rivers provide transport, deposits, and power. Lakes also support habitat, recreation, water supplies, and receiving wastewater. The sea moderates climate, supports trade and mineral extraction, and is critical for food and economies. Overall, the document emphasizes that water resources are essential for life and their protection is important.
This document discusses developing a mathematical model to assess the collision risk of fish and marine mammals with horizontal tidal stream turbines in Scottish waters. The model calculates collision risk in two stages: 1) estimating the number of animals swimming through the rotor area, and 2) calculating the probability of animals being hit while passing through. Key factors influencing collision risk are species behaviors and distributions, turbine characteristics, hearing sensitivity, and visibility conditions. Further research is still needed, especially for large species and slow swimmers. Mitigation options like site selection and device visibility may help reduce risks.
The document discusses the natural resource of ponds. It defines ponds as smaller bodies of standing water, either natural or man-made. Ponds provide habitat for wetland plants and animals. They are characterized by the presence of standing water and a fringe of wetland vegetation around the margin that supports the aquatic food web. Different types of ponds are named based on their origin or purpose, such as stew ponds or mill ponds. Ponds are an important natural resource that support wildlife as a source of food and recreation for humans.
PHYSICO-CHEMICAL EFFECTS OF SAND HARVESTING ON WATER QUALITY IN RIVER THWAKE ...Tabitha Nzula Mwanzia
This document summarizes a study that assessed the physicochemical effects of sand harvesting on water quality in River Thwake in Machakos County, Kenya. Water samples were collected from a sand harvesting site and a non-sand harvesting site and analyzed for various parameters including temperature, pH, turbidity, color, conductivity, heavy metals, BOD and COD. The results showed significant differences in color, turbidity, iron, COD and zinc between the two sites, indicating sand harvesting is negatively impacting water quality. However, other parameters like copper, conductivity, temperature and pH were not significantly different. The results were compared to WHO and Kenyan water quality guidelines to determine suitability for domestic use.
Project ecosystem - FRESH WATER ECOSYSTEMRajanPillai16
An ecosystem is a biological community made up of interacting organisms and their physical environment. Freshwater ecosystems include lakes, ponds, rivers, streams, springs, bogs, and wetlands. Energy enters freshwater systems through photosynthesis and is transferred between organisms as they feed on each other, while decomposers cycle nutrients by breaking down dead matter.
Biophysical Characteristics and the Anthropogenic Activities in San Roque Riv...YogeshIJTSRD
River provides essential various ecosystem goods and services that are essential for living organisms’ survival. As such, its quality must be maintained to ensure the healthy condition of the environment as well as the safety of the community. The study aimed to assess the biophysical characteristics and the anthropogenic activities in San Roque River, Northern Samar. It employed descriptive research combined with laboratory analysis and SPSS was employed to treat and analyze the data.The study revealed that the physico chemical characteristics of the water in San Roque River in terms of temperature, pH, TSS, TDS, and turbidity were within the DENR standards. However, the water of the river was highly contaminated with total coli forms and fecal coli forms. Likewise, the salinity was beyond from the standard that made the water of the river salty. T test revealed that the characteristics of water during high and low tides showed no significant differences. On the contrary. It has shown significant difference on water parameters in terms of temperature, pH, TSS, TDS, BOD, and DO between high tide and the standards. Likewise, pH, TSS, BOD, and DO have shown significant difference on low tide with the standards. It also revealed that there were anthropogenic activities and practices of the community living along the river that directly affect the water quality and condition of the river. Moreover, this also concludes that there were no significant relationships on the characteristics of the water and the anthropogenic activities. Lastly, the San Roque River was classified as Class D river at the time of the conduct of the study. This concludes that the river needed rehabilitation so that the potential uses of the river would be maximized which would redound to better benefits of the community. Elvin L. Jarito | Gerald T. Malabarbas "Biophysical Characteristics and the Anthropogenic Activities in San Roque River, Northern Samar" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-3 , April 2021, URL: https://www.ijtsrd.com/papers/ijtsrd38775.pdf Paper URL: https://www.ijtsrd.com/management/other/38775/biophysical-characteristics-and-the-anthropogenic-activities-in-san-roque-river-northern-samar/elvin-l-jarito
Wetlands provide important habitat for many species but are under threat from human activities. They act as natural filters, absorb excess water to prevent flooding, and are highly productive ecosystems. However, over half of the world's wetlands have been lost in the last century due to drainage for agriculture or development, pollution from industry and cities, and other direct threats. International agreements have aimed to protect important wetland sites, but continued conservation efforts are still needed to preserve these vital ecosystems and their benefits.
SEASONAL VARIATION IN PHYSICO-CHEMICAL PARAMETERS OF SURFACE WATER AND GROUND...Ijrdt Journal
The present study is carried out to assess the water quality parameters of both surface water and ground water of Singanallur lake region a rivulet from river Noyyal. Parameters like pH, FC, DO, BOD, Turbidity, Total phosphates, Nitrates and Total dissolved solids are measured and compared for both summer and rainy season. Results revealed parameters varied to greater extent for surface water compared to ground water. So the surface water of Singanallur region is highly polluted due to runoff from industries, domestic waste and agricultural
ABSTRACT- Fresh water resources are not unlimited. The high rate of increase of human population of Nepal and the
rapid rate of industrialization have created problems of disposal of waste water products. The domestic wastes, excretory
materials of both human and animals and industrial effluents are discharged into the nearly lakes, rivers, reservoirs and
tanks and even in the catchment area of the above water bodies. The undesirable substances are regularly mixed into the
water of pond through surface run-off that degrades the water quality. Since last several years, there have been added an
array of agricultural pesticides and insecticides, which are further seriously aggravating the problem of pollution both for
public health and aquaculture. The detailed information of water quality and status of affected living organisms of water
bodies are necessary for the implementation of any management plan. The present investigation encompasses on plankton
identifying the ecological quality of Chhapakaiya pond Birgunj, Nepal. Seasonal sampling from all the sampling sites (site
A, B, C, D) in winter, summer and rainy season for period of 12 months (November 2014 – October 2015) at 9:00-11: 00
AM. A total of 27 taxa from different classes of zooplankton were reported. The zooplanktons were reported to be
maximum (774.4 unit/L) during summer and minimum (539.2 unit/L) during the rainy season in Chhapakaiya pond.
Key-words- Zooplankton, Biological productivity, Habitat degradation
A Study on Zooplankton Diversity of Budge Budge Railway Jhill in Kolkata of W...ijtsrd
Zooplankton acts as main sources of food for many fishes and plays an important role in early detection and monitoring the pollution of water. A number of studies has been carried out on the condition of ecology and freshwater bodies in various parts of West Bengal but in some parts of South 24 Parganas District, the ecological studies of freshwater bodies especially zooplankton studies is very scanty. The present investigation made an attempt to study the zoo planktons species in Budge Budge Railway Jhill. This Railway Jhill is situated beside the south part of Budge Budge Railway station and in front of Bogie Manufacturing factory, Kolkata, West Bengal. The quantitative studies of plankton diversity in Budge Budge Railway Jhill of Kolkata in West Bengal were carried out for the months of January 2021 to June 2022. The lowest zooplankton number 460 ltr. was recorded in the month of June summer and the highest number 680 ltr. in January winter due to different environmental and inflow characteristics of the water body. Zooplankton community of this Jhill in winter comprises of 10 species and in summer comprises of only 6 species belonging to Rotifera, Cladocera, Copepoda and Ostracoda collected from different zones, viz., littoral, pelagic and deepwater. Qualitatively the copepods Cyclopes sp and Cypris sp ware found to dominant species among the zooplankton community in winter and the rotifers Branchionus sp were found to dominant species among the zooplankton community in summer. Mayukhmala Mandal "A Study on Zooplankton Diversity of Budge Budge Railway Jhill in Kolkata of West Bengal, India" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-1 , February 2024, URL: https://www.ijtsrd.com/papers/ijtsrd61312.pdf Paper Url: https://www.ijtsrd.com/biological-science/allied-sciences/61312/a-study-on-zooplankton-diversity-of-budge-budge-railway-jhill-in-kolkata-of-west-bengal-india/mayukhmala-mandal
The study identified 12 species of copepods from 4 freshwater lakes in periurban areas near Chennai, India. 8 species of cyclopoid copepods and 4 species of calanoid copepods were found. Diaptomus sicilis, first reported from Madipakkam lake, was the dominant copepod species there. The occurrence of copepods, particularly calanoids, depended on the size of the water body as well as the pH and dissolved oxygen concentrations. Mesocyclops aspericornis, identified as a pollution indicator species, was present in all 4 lakes.
The Aquatic Ecosystem is a game-changer in the field of aquariums. Aquatic ecosystems manage water quality and deliver a healthy, clean environment for fish to thrive. This product is at an early stage of its development and has a unique value proposition.
Viability, method and device for horticultural crops with brackish and marine...Agriculture Journal IJOEAR
The method that humanity has adopted to hydrate and thus give life to the plants, imitating the model that was most visible, is the rain. However, the great secret to the contribution of nutrients to the vegetables, the irrigation itself, is on earth, in the groundwater layers and aquifers that hoard and administer the water, keeping every drop of rain and distributing the water through the basins, underground rivers, watering indirectly from the mountain to the sea. The key is in the different circulation velocities of the groundwater because of the nature of the substrates. However, agriculture has taken irrigation from above as we know it and has focused especially on drainage capacity. From this point of view, saline water is not beneficial for irrigated agriculture, but may be the only source of irrigation water in large arid regions, especially in developing countries, where the extreme scarcity of freshwater and the rapidly growing population require more water. When considering the possibility of watering with seawater without desalinating, always by means of capillarity systems, it is essential to take into consideration the different strata of soils, the distance to the groundwater, the composition of seawater, the capacity of drainage, chemical reactions of the soil with salts, etc. The modification of any of these parameters can produce effects of salinization, loss of humidity or desertification among others. This study presents the accumulated experience through the joint collaboration between the Centre for Research in Security and food Control of the Polytechnic University of Catalonia (CRESCA) and the Aqua Maris Foundation in capillary irrigation and it proposes a system and device that allows the controlled development of different vegetal species using brackish and seawater.
This document discusses various types of water resources including ponds, rivers, lakes, and the sea. It provides 3-4 sentences on the importance of each resource. Ponds are described as small, shallow bodies of fresh water that support recreation, water supply, and wildlife. Rivers are classified as permanent, periodic, or episodic and provide habitat, transport, resources, and hydroelectric power. Lakes supply recreation, water, habitat, and are used for commercial activities. The sea moderates climate, supports resources and ecosystems, provides transport, and waste disposal. In conclusion, water resources are essential to life and have been utilized by mankind for various domestic, agricultural, industrial and recreational purposes.
This document discusses different types of water resources including ponds, rivers, and seas. It provides details on the importance of each resource. Ponds are described as small, shallow bodies of fresh water that support wildlife habitat and regulate soil formation. Rivers are classified as permanent, periodic, or episodic and provide habitat, transport, and hydroelectric power. Seas moderate climate and are critical for global food security and economic prosperity through trade, travel, and fisheries. In conclusion, the document emphasizes that water is essential for life and it is important to protect natural water resources.
The document summarizes a study assessing the water quality of the Valapattanam River in Kerala, India using benthic macroinvertebrates as biological indicators. A total of 408 individuals from 20 genera and 14 families were collected from 5 stations along the river during 3 seasons. The downstream stations showed signs of moderate pollution, with tolerant species like Chironomus present. Water quality was found to be impacted by sewage and agriculture, reducing aquatic insect abundance. Biological water quality criteria were used to evaluate the stations, finding slight to moderate pollution depending on the season and location.
The effects of different water quality parameters on zooplankton distribution...iosrjce
IOSR Journal of Environmental Science, Toxicology and Food Technology (IOSR-JESTFT) multidisciplinary peer-reviewed Journal with reputable academics and experts as board member. IOSR-JESTFT is designed for the prompt publication of peer-reviewed articles in all areas of subject. The journal articles will be accessed freely online
The Charles River was historically used by Native Americans and later colonists for transportation, fishing, and industry. Through the 1800s and 1900s, the river became heavily polluted by factories dumping waste and sewage. Efforts in the late 20th century led to improved water quality and protection of wetlands. Today the river remains an important ecosystem and recreational area, though challenges from invasive species, development, and stormwater runoff persist.
This document summarizes the significance of water and future research perspectives on water resources. It discusses how water covers over 70% of the Earth's surface and provides habitat for many organisms. Water plays an important role in biological processes, chemical reactions, soil maintenance, and promoting life. The document outlines the importance of studying different aquatic ecosystems to advance fields like environmental biology and medicine. It also discusses emerging areas of focus for future water resource research, including utilizing new technologies like remote sensing, studying water at global scales, characterizing heterogeneity, and analyzing human impacts on water systems.
This document discusses natural water resources and their importance. It covers 5 main water resources: ponds, rivers, lakes, seas, and their significance. Ponds provide recreation and water supply. Rivers transport organisms and sediments, provide power, and form flood plains. Lakes offer recreation, water supply, habitat, and receive wastewater. Seas moderate climate, support trade/travel, and provide resources like fish. In conclusion, water resources are essential for life and mankind utilizes them for various domestic, agricultural, industrial, and recreational purposes. Their protection is important.
This document discusses natural water resources for science teaching and learning. It covers the importance of ponds, rivers, lakes, and seas. Ponds are small bodies of fresh water that support wildlife habitat and recreation. Rivers provide transport, deposits, and power. Lakes also support habitat, recreation, water supplies, and receiving wastewater. The sea moderates climate, supports trade and mineral extraction, and is critical for food and economies. Overall, the document emphasizes that water resources are essential for life and their protection is important.
This document discusses developing a mathematical model to assess the collision risk of fish and marine mammals with horizontal tidal stream turbines in Scottish waters. The model calculates collision risk in two stages: 1) estimating the number of animals swimming through the rotor area, and 2) calculating the probability of animals being hit while passing through. Key factors influencing collision risk are species behaviors and distributions, turbine characteristics, hearing sensitivity, and visibility conditions. Further research is still needed, especially for large species and slow swimmers. Mitigation options like site selection and device visibility may help reduce risks.
The document discusses the natural resource of ponds. It defines ponds as smaller bodies of standing water, either natural or man-made. Ponds provide habitat for wetland plants and animals. They are characterized by the presence of standing water and a fringe of wetland vegetation around the margin that supports the aquatic food web. Different types of ponds are named based on their origin or purpose, such as stew ponds or mill ponds. Ponds are an important natural resource that support wildlife as a source of food and recreation for humans.
PHYSICO-CHEMICAL EFFECTS OF SAND HARVESTING ON WATER QUALITY IN RIVER THWAKE ...Tabitha Nzula Mwanzia
This document summarizes a study that assessed the physicochemical effects of sand harvesting on water quality in River Thwake in Machakos County, Kenya. Water samples were collected from a sand harvesting site and a non-sand harvesting site and analyzed for various parameters including temperature, pH, turbidity, color, conductivity, heavy metals, BOD and COD. The results showed significant differences in color, turbidity, iron, COD and zinc between the two sites, indicating sand harvesting is negatively impacting water quality. However, other parameters like copper, conductivity, temperature and pH were not significantly different. The results were compared to WHO and Kenyan water quality guidelines to determine suitability for domestic use.
Project ecosystem - FRESH WATER ECOSYSTEMRajanPillai16
An ecosystem is a biological community made up of interacting organisms and their physical environment. Freshwater ecosystems include lakes, ponds, rivers, streams, springs, bogs, and wetlands. Energy enters freshwater systems through photosynthesis and is transferred between organisms as they feed on each other, while decomposers cycle nutrients by breaking down dead matter.
Biophysical Characteristics and the Anthropogenic Activities in San Roque Riv...YogeshIJTSRD
River provides essential various ecosystem goods and services that are essential for living organisms’ survival. As such, its quality must be maintained to ensure the healthy condition of the environment as well as the safety of the community. The study aimed to assess the biophysical characteristics and the anthropogenic activities in San Roque River, Northern Samar. It employed descriptive research combined with laboratory analysis and SPSS was employed to treat and analyze the data.The study revealed that the physico chemical characteristics of the water in San Roque River in terms of temperature, pH, TSS, TDS, and turbidity were within the DENR standards. However, the water of the river was highly contaminated with total coli forms and fecal coli forms. Likewise, the salinity was beyond from the standard that made the water of the river salty. T test revealed that the characteristics of water during high and low tides showed no significant differences. On the contrary. It has shown significant difference on water parameters in terms of temperature, pH, TSS, TDS, BOD, and DO between high tide and the standards. Likewise, pH, TSS, BOD, and DO have shown significant difference on low tide with the standards. It also revealed that there were anthropogenic activities and practices of the community living along the river that directly affect the water quality and condition of the river. Moreover, this also concludes that there were no significant relationships on the characteristics of the water and the anthropogenic activities. Lastly, the San Roque River was classified as Class D river at the time of the conduct of the study. This concludes that the river needed rehabilitation so that the potential uses of the river would be maximized which would redound to better benefits of the community. Elvin L. Jarito | Gerald T. Malabarbas "Biophysical Characteristics and the Anthropogenic Activities in San Roque River, Northern Samar" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-3 , April 2021, URL: https://www.ijtsrd.com/papers/ijtsrd38775.pdf Paper URL: https://www.ijtsrd.com/management/other/38775/biophysical-characteristics-and-the-anthropogenic-activities-in-san-roque-river-northern-samar/elvin-l-jarito
Wetlands provide important habitat for many species but are under threat from human activities. They act as natural filters, absorb excess water to prevent flooding, and are highly productive ecosystems. However, over half of the world's wetlands have been lost in the last century due to drainage for agriculture or development, pollution from industry and cities, and other direct threats. International agreements have aimed to protect important wetland sites, but continued conservation efforts are still needed to preserve these vital ecosystems and their benefits.
SEASONAL VARIATION IN PHYSICO-CHEMICAL PARAMETERS OF SURFACE WATER AND GROUND...Ijrdt Journal
The present study is carried out to assess the water quality parameters of both surface water and ground water of Singanallur lake region a rivulet from river Noyyal. Parameters like pH, FC, DO, BOD, Turbidity, Total phosphates, Nitrates and Total dissolved solids are measured and compared for both summer and rainy season. Results revealed parameters varied to greater extent for surface water compared to ground water. So the surface water of Singanallur region is highly polluted due to runoff from industries, domestic waste and agricultural
ABSTRACT- Fresh water resources are not unlimited. The high rate of increase of human population of Nepal and the
rapid rate of industrialization have created problems of disposal of waste water products. The domestic wastes, excretory
materials of both human and animals and industrial effluents are discharged into the nearly lakes, rivers, reservoirs and
tanks and even in the catchment area of the above water bodies. The undesirable substances are regularly mixed into the
water of pond through surface run-off that degrades the water quality. Since last several years, there have been added an
array of agricultural pesticides and insecticides, which are further seriously aggravating the problem of pollution both for
public health and aquaculture. The detailed information of water quality and status of affected living organisms of water
bodies are necessary for the implementation of any management plan. The present investigation encompasses on plankton
identifying the ecological quality of Chhapakaiya pond Birgunj, Nepal. Seasonal sampling from all the sampling sites (site
A, B, C, D) in winter, summer and rainy season for period of 12 months (November 2014 – October 2015) at 9:00-11: 00
AM. A total of 27 taxa from different classes of zooplankton were reported. The zooplanktons were reported to be
maximum (774.4 unit/L) during summer and minimum (539.2 unit/L) during the rainy season in Chhapakaiya pond.
Key-words- Zooplankton, Biological productivity, Habitat degradation
A Study on Zooplankton Diversity of Budge Budge Railway Jhill in Kolkata of W...ijtsrd
Zooplankton acts as main sources of food for many fishes and plays an important role in early detection and monitoring the pollution of water. A number of studies has been carried out on the condition of ecology and freshwater bodies in various parts of West Bengal but in some parts of South 24 Parganas District, the ecological studies of freshwater bodies especially zooplankton studies is very scanty. The present investigation made an attempt to study the zoo planktons species in Budge Budge Railway Jhill. This Railway Jhill is situated beside the south part of Budge Budge Railway station and in front of Bogie Manufacturing factory, Kolkata, West Bengal. The quantitative studies of plankton diversity in Budge Budge Railway Jhill of Kolkata in West Bengal were carried out for the months of January 2021 to June 2022. The lowest zooplankton number 460 ltr. was recorded in the month of June summer and the highest number 680 ltr. in January winter due to different environmental and inflow characteristics of the water body. Zooplankton community of this Jhill in winter comprises of 10 species and in summer comprises of only 6 species belonging to Rotifera, Cladocera, Copepoda and Ostracoda collected from different zones, viz., littoral, pelagic and deepwater. Qualitatively the copepods Cyclopes sp and Cypris sp ware found to dominant species among the zooplankton community in winter and the rotifers Branchionus sp were found to dominant species among the zooplankton community in summer. Mayukhmala Mandal "A Study on Zooplankton Diversity of Budge Budge Railway Jhill in Kolkata of West Bengal, India" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-1 , February 2024, URL: https://www.ijtsrd.com/papers/ijtsrd61312.pdf Paper Url: https://www.ijtsrd.com/biological-science/allied-sciences/61312/a-study-on-zooplankton-diversity-of-budge-budge-railway-jhill-in-kolkata-of-west-bengal-india/mayukhmala-mandal
The study identified 12 species of copepods from 4 freshwater lakes in periurban areas near Chennai, India. 8 species of cyclopoid copepods and 4 species of calanoid copepods were found. Diaptomus sicilis, first reported from Madipakkam lake, was the dominant copepod species there. The occurrence of copepods, particularly calanoids, depended on the size of the water body as well as the pH and dissolved oxygen concentrations. Mesocyclops aspericornis, identified as a pollution indicator species, was present in all 4 lakes.
Productivity of phytoplankton using different organic fertilizers in the glas...AbdullaAlAsif1
The experiment intended to estimate the productivity using different organic fertilizer and to identify the species of phytoplankton in the aquarium tanks. The study was conducted in the laboratory Phytoplankton samples for culture were collected from fisheries experimental pond by using conical-shaped monofilament nylon net (phytoplankton net). Three treatment such as cow dung (T₁), chicken manure (T₂) and control (T₃) were designed. Each treatment had two replications. In case of T₁ and T₂, 10 g of fertilizer was used in each aquarium tank. Sampling of phytoplankton for counting and identification was done every week and 1 litre of water sample was taken from each tank. Phytoplankton sample for identification were preserved by Lugol's solution. Three physicochemical parameters namely water temperature, dissolved oxygen (DO) and pH were measured in every sampling week during the study period. Water quality parameters of the aquarium tank varied with the variation of sampling week. There was no significant difference between water temperature, pH and DO in case of three treatment. The mean water temperature, pH and DO were 21.85±1.95 °C, 8.38±0.23 and 5.55±0.58 mg/l, respectively. The abundance of phytoplankton in T₁, T₂ and T₃ were 25-65, 25-105 and 6-20 individual/l, respectively. The phytoplankton abundance were influenced by different organic fertilizer and noticed higher in number by using chicken manure. Irregular relationship between phytoplankton abundance and water temperature was found. Phytoplankton showed positive relationship with DO. In this study 15 species of phytoplankton were identified under four groups namely Chlorophyta, Cyanophyta, Bacillariophyta and Euglenophyta. Chlorophyta (52%) was the dominant group in the aquarium. The findings of the present study will help to improve the management strategies of water quality, for estimating the productivity of phytoplankton and for the best use of organic fertilizer especially chicken manure.
Effect of water parameters on temporal distribution and abundance of zooplank...AbdullaAlAsif1
Seasonal abundance of zooplankton in relation to different physico-chemical conditions of Kaptai lake has been studied. A total of four major groups of zooplankton were identified from study area of Kaptai lake during three seasons observation at pre-monsoon, monsoon and Post-monsoon. These four groups were categorized into rotifers, copepods, cladocerans and others (fish larvae, shrimp larvae, insects, mosquito larvae etc.). The mean abundance of group rotifers, copepods, cladoceras and others were 103, 84.67, 38.33 and 41.83 ind. L-1 respectively. The highest group was rotifers in terms of abundance and composition where compositions were recorded 38 % at three season's observation. The lowest group was cladoceras in term of abundance and composition where compositions were recorded 14 %. The air temperature, water temperature, transparency, water pH, DO, BOD5, PO 4-P, NO 2-N, SiO 3-Si, TSS, TDS, Alkalinity ranged between 21 and 27.5C, 23.5 and 31.5C, 0.8 and 3 m, 7.1 and 7.5, 5.72 and 8.58 mg/l, 8.55 and 12.87 mg/l, 3.22 and 4.13 µg/l, 0.992 and 1.19 µg/l, 161.18 and 201.15 µg/l, 0.28 and 0.48 g/l, 0.18 and 0.68 g/l, 40 and 60 ppm, respectively. Margalef richness index (d), Pielou's evenness index (J'), Shannon-Wiener diversity index (H'), Simpson dominance index (λ) are analyzed by Primer V6 software to quantify the collected species. Through same software SIMPER, Cluster analysis also done to compare similarity between season.
Stress of Environmental Pollution on Zooplanktons and theirComparative Studi...theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
Diversity and abundance of Macrobenthos in a subtropical estuary, BangladeshAbdullaAlAsif1
Soft bottom macrobenthos are important component of the marine and coastal trophic chain. There has been sparse information regarding the distribution of soft bottom macrobenthos form the coastal water of Bangladesh. Consequently, the present study was an effort to reveal the diversity and abundance of macrobenthos in the Feni Estuary in a seasonal pattern together with the hydrological factors. A total of 17 taxa families of soft-bottom invertebrates were found over the two sampling seasons. The current study yielded a total number of 34,726 ind./m 2 (mean 2480ind./m 2) including 18,909ind./m 2 in wet season (mean 2682ind./m 2) and 15,817 ind./m 2 in dry season (2259ind./m 2). The highest density of soft-bottom invertebrates was in the wet season while the lowest number in the dry season. A total of 5 groups of macrobenthos were found over the two sampling seasons. The dominant group was Polychaeta that contributed 43.60% of the total soft-bottom invertebrates. The values of biodiversity indices were higher in dry season compare to the wet season in most of the sampling station during the study period.
Biodiversity Status of Fishes from Vettathukadavu, Kayamkulam Backwater, Keralapaperpublications3
Abstract: The fishes are one of the most important, vertebrate, provided rich protein sources for human and several animals and important elements in the economy of many countries. Fish diversity essentially represents the fish faunal diversity. The survey was undertaken during the period from February 2016 to july 2016 in the region of Vettathukadavu, in Kayamkulam backwater, Kerala. The major objective of this study was to find out the biodiversity status of fishes in the Vettathukadavu region of Kayamkulam backwater, Kerala. Conservation status of fishes was assessed by IUCN Conservation status. The Survey of the studied stretch of backwater were resulted in recording of 25 fish species belonging to 6 orders and 15 familes. Of the 25 species reported during the study, 15 are least concern, 1 is critically endangered, 1 is vulnerable, 6 species are not evaluated and 2 species are not reported in IUCN Red.
Keywords: Icthyofauna, Biodiversity, IUCN, Endangered.
Title: Biodiversity Status of Fishes from Vettathukadavu, Kayamkulam Backwater, Kerala
Author: Remya.R, Dr. S.Amina
ISSN 2349-7823
International Journal of Recent Research in Life Sciences (IJRRLS)
Paper Publications
Variation in the plankton abundance, biomass and diversity of Municipal pond ...AbdullaAlAsif1
This is the first approach to identification, abundance calculation; biomass analysis and diversity evaluation in two water bodies namely, Municipal pond and Bukvora baor at Jashore district, Bangladesh. The present study was conducted to find out the abundance and species diversity of plankton, water quality parameters in pond and baor environment. However, Municipal pond that is located at the central point of Jashore town and Bukvora baor that is located at sadar upazila in Jashore district. Study also concentrated on the comparison about abundance, species diversity and water quality parameters between pond and baor. Water samples were collected in each month throughout the study period from May, 2016 to August, 2016. Different water quality parameters such as air temperature, water temperature, dissolve oxygen; pH and transparency were measured in every month. The mean water parameters such as air temperature, water temperature, dissolve oxygen; pH and transparency were 30.4±2.30°C, 32.25 ± 2.6°C, 5.7±0.35 mg/l, 7.05 ± 0.39 and 19.9 ± 2.6 cm, respectively in pond. In baor, the mean water parameters such as air temperature, water temperature, dissolve oxygen, pH and transparency were 33.45 ± 1.19°C, 33.15 ± 1.49°C, 5.03 ± 0.15 mg/l, 8.45 ± 0.36 and 24.95 ± 2.6 cm, respectively. A total of 30 phytoplankton species have been found in the study area of which species under four groups; namely Cyanophyta (5), Heterokontophyta (3), Chlorophyta (11), Euglenophyta (2) have been identified and nine species were unidentified. Phytoplankton species distribution was not uniform. Chlorophyta species was most dominant group in both environments. Major four groups of zooplankton identified in study area both pond and baor; namely Cladocera (10%), Copepoda (55%), Ostracoda (3%), Rotifera (15%). In addition Nauplius (2%), Tunicata (4%), Insect larve (5%) fish eggs (6%) were also identified. Copepoda species was most dominant group in both environments. Plankton diversity was highest in June occurred in both environments.
Aquatic ecosystems are hot spots of most terrestrial biodiversity. They interact with their surrounding terrestrial area through food webs and habitat resources. The aquatic ecosystems also attract a wide range of other fauna including wading and migrating birds, amphibians, riparian mammals and insects. Furthermore, aquatic ecosystems have ability to recycle nutrients of wastewater. Despite many benefits they have, their potentiality in the rehabilitation of quarries is not well recognized. The recent effort on the rehabilitation of quarry site is mostly focused on terrestrial plants despite the fact that quarries life are heterogeneous ecosystems. Owing to this reason, there is a need of using the potential of aquatic ecosystems to enhance the rehabilitation of quarries sites. The present project is therefore focused on establishing the aquatic ecosystem at Wazo hill quarry.
The project won the 1st Prize in National Quarry Life Award in 2014 in Tanzania.
Read more: http://www.quarrylifeaward.com/project/potential-use-aquatic-ecosystems-enhancement-rehabilitation-mining-sites
Status of Phytoplankton Community of Kisumu Bay, Winam Gulf, Lake Victoria, K...theijes
Lake Victoria has undergone remarkable and diverse ecological perturbations which are as a result of physical, chemical and biological processes, together with human activities that take place in the watershed area and within the lake itself. The most observed effects include increases in phytoplankton biomass and frequent algal blooms. In this study species composition, abundance, spatial and temporal distribution of phytoplankton as well as total phytoplankton biomass of Kisumu Bay, (Winam Gulf), Lake Victoria, Kenya was studied for six months in the wake of climate change. Sampling was done every two weeks using a Van Dorn Water sampler to take water samples and algal cells were counted under an inverted microscope with the help of a Sedge-Wick Rafter Cell in order to determine density. Phytoplankton biomass indicated by chlorophyll-content was determined through cold extraction in acetone and subsequent quantification by spectrophotometry. Physicochemical parameters were measured in situ using respective meters, while plant nutrient levels were determined by spectrophotometric methods following standard methods of APHA 1985 and Gems (1992) Handbook. ANOVA test was used to determine any temporal and spatial variability in the biological factors. Regression and Pearson’s correlation analyses were done to establish relationships between these factors. LSD test was done to determine means which were significantly different. The results indicated that a total of 36 genera of algae belonging to Cyanophyta, Bacillariophyta, Chlorophyta and Pyrrophyta were present, with dominance of the classes in terms of number of species being in that order. Chroococcus species was the most abundant and its density was significantly different from all the others. Most algal species were more or less homogenously distributed in the bay (p=1.0000) and over the study period (p=1.0000), but their densities varied significantly between different species (p<0.0001). From these results, it can be concluded that the phytoplankton community within the bay is becoming very dynamic and could possibly portray the status in the whole lake. Diatoms are becoming increasingly dominant. There is continual increasing trend in physico-chemical factors. The information obtained from this work contributes to the understanding of ecological changes in the bay in response to climate change and variability and thus the threat to biodiversity. This information is therefore important for ecological and management purposes of the lake and understanding effects of climate change on ecosystem structure, functioning and productivity.
The document summarizes a study of crustacean communities in Anchar Lake, Kashmir. Eleven crustacean species from five families were identified. Population levels fluctuated seasonally, with maximum levels in summer and minimum in winter. Daphnidae was the most abundant family. The population dynamics were influenced by water level fluctuations and macrophyte density. The crustacean community composition reflected the shallow, eutrophic nature of the lake.
Study of Zooplankton Abundance and Species Diversity in Shahjangi Pond of Bha...ijtsrd
The present study was conducted in Shahjangi Pond of Bhagalpur District of Bihar during April 2021 to March 2022. Zooplanktonic abundance and diversity were determined by using standard method. The principal aim of this study was to study more about the swamps overall zooplankton diversity. Water samples were collected using zooplankton net and preserved with formalin aqueous solution of formaldehyde and 5 neutral buffer 10 ml on the spot, then brought to the laboratory for further analysis. Totally 21 species of zooplankton of four different classes were recorded rotifer, cladocera, copepod and ostracoda in which Rotifera was the most dominant class followed by the cladocera, copepoda and ostracoda. From total 21 genera 10 were belongs to Rotifera, 6 from cladocera, 3 from copepoda and 2 from ostracoda. Shannon Weaver index were employed to analysis the species diversity. Priyama Kumari | Dr. Ashok Kumar Thakur "Study of Zooplankton Abundance and Species Diversity in Shahjangi Pond of Bhagalpur, Bihar (India)" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-6 | Issue-3 , April 2022, URL: https://www.ijtsrd.com/papers/ijtsrd49809.pdf Paper URL: https://www.ijtsrd.com/biological-science/zoology/49809/study-of-zooplankton-abundance-and-species-diversity-in-shahjangi-pond-of-bhagalpur-bihar-india/priyama-kumari
Heavy Metals in organs and endoparasites of Oreochromisniloticus, Sediment an...iosrjce
IOSR Journal of Environmental Science, Toxicology and Food Technology (IOSR-JESTFT) multidisciplinary peer-reviewed Journal with reputable academics and experts as board member. IOSR-JESTFT is designed for the prompt publication of peer-reviewed articles in all areas of subject. The journal articles will be accessed freely online.
This document summarizes a study on the effect of pollution on the mudskipper fishery in the Ulhas River estuary in India, with a focus on the biology of Boleopthalmus dussumieri. The estuary receives industrial and domestic effluents from nearby cities and has become heavily polluted, depleting fisheries. The study aims to assess current pollution levels, examine the health of B. dussumieri populations, and determine the status of its fishery. Water quality, biological samples, and fishing data were collected from three zones along the estuary over nine months. The results provide insight into how pollution is impacting this important coastal ecosystem and fishery.
11.[23 28]distribution of macrophytes in river narmada near water intake pointAlexander Decker
The document summarizes a study on the distribution of macrophytes near a water intake point on the River Narmada in India. A total of 8 macrophyte species were recorded, including both submerged and emergent types. Submerged macrophytes dominated the study areas. The highest diversity was observed at upstream sampling sites, while no macrophytes were found at the site located at the water intake point due to construction. Downstream sites showed lower macrophyte numbers despite suitable water quality conditions. The study concluded that water abstraction negatively impacted the distribution and diversity of macrophytes in the river.
Species Diversity of Polychaete Worms from Some Selected Freshwater Environme...ijtsrd
The number of freshwater species in the world is quite small when compared with the vast number of marine species. There are several marine forms which are penetrated brackish and freshwater but remain unable to breed there while others have adapted sufficiently to remain for their entire life span. Polychaetes are commonly found in Indian estuaries, among 152 species recorded, 119 species from the east coast, 10 species from both east and west coasts. A total of 8 species were identified along Thenkasi District. Macro benthic polychaetes highlighted the presence of indicator species at all stations. Most of the benthic studies explored that Nereididae is the dominant species. The polychaetes observed throughout this study were a similar size and this is a clear indication of extreme disturbance imposed on the sediment. The present findings show macrobenthic polychaete diversity rich all along the Thenkasi District of Tamil Nadu. S. Balasubramanian | T. Citarasu | S. Lazarus | A. Renu "Species Diversity of Polychaete Worms from Some Selected Freshwater Environment of Thenkasi District, Tamil Nadu" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-5 , August 2019, URL: https://www.ijtsrd.com/papers/ijtsrd26516.pdfPaper URL: https://www.ijtsrd.com/biological-science/zoology/26516/species-diversity-of-polychaete-worms-from-some-selected-freshwater-environment-of-thenkasi-district-tamil-nadu/s-balasubramanian
The document summarizes a study on the zooplankton community of the Kalamnuri minor irrigation dam in India from August 2004 to July 2005. A total of 30 zooplankton species were found, dominated by 10 species of cladocera. The populations of zooplankton varied seasonally and between sampling sites, influenced by factors like water temperature and food availability. The study found the dam maintains a well-balanced ecosystem and has potential for fish cultivation due to the abundant zooplankton populations.
The document discusses how phosphates can affect the growth of aquatic plants. Phosphates are common pollutants that enter lakes and rivers. Too much phosphate can lead to excess algae growth and harm the balanced lake environment. The author proposes an experiment to study how different concentrations of phosphates impact the growth of aquatic plants over time. The results could help better understand the effects of phosphate pollution on important hydrophytes and the overall lake ecosystem.
Similar to Variation of Growth Dynamics and Resource Allocation Patterns of Dictamnus albus (20)
ALPHA LOGARITHM TRANSFORMED SEMI LOGISTIC DISTRIBUTION USING MAXIMUM LIKELIH...BRNSS Publication Hub
The document discusses the alpha logarithm transformed semi-logistic distribution and its maximum likelihood estimation method. It introduces the distribution, provides its probability density function and cumulative distribution function. It then describes generating random numbers from the distribution and outlines the maximum likelihood estimation method to estimate the distribution's unknown parameters. This involves deriving the likelihood function and taking its partial derivatives to obtain equations that are set to zero and solved to find maximum likelihood estimates of the location, scale, and shape parameters.
AN ASSESSMENT ON THE SPLIT AND NON-SPLIT DOMINATION NUMBER OF TENEMENT GRAPHSBRNSS Publication Hub
This document summarizes research on the split and non-split domination numbers of tenement graphs. It defines tenement graphs and provides basic definitions of domination, split domination, and non-split domination. Formulas for the split and non-split domination numbers of tenement graphs are presented based on the number of vertices. Theorems are presented stating that the mid vertex set of a tenement graph is always a split dominating set, but its size is not always equal to the split domination number.
This document summarizes research on generalized Cantor sets and functions where the standard construction is modified. It introduces Cantor sets defined by an arbitrary base where the intervals removed at each stage are not all the same length. It also defines irregular or transcendental Cantor sets generated by transcendental numbers like e. The key findings are:
1) There exists a unique probability measure for generalized Cantor sets that generates the cumulative distribution function.
2) The Holder exponent of generalized Cantor sets is shown to be logn/s where n is the base and s is the number of subintervals.
3) Lower and upper densities are defined for the measure on generalized Cantor functions and their properties are
SYMMETRIC BILINEAR CRYPTOGRAPHY ON ELLIPTIC CURVE AND LIE ALGEBRABRNSS Publication Hub
1) The document discusses symmetric bilinear pairings on elliptic curves and Lie algebras in the context of cryptography. It provides an overview of the theoretical foundations and applications of combining these areas.
2) Key concepts covered include the Weil pairing as a symmetric bilinear pairing on elliptic curves, its properties of bilinearity and non-degeneracy, and efficient computation. Applications of elliptic curves in cryptography like ECDH and ECDSA are also summarized.
3) The security of protocols like ECDH and ECDSA relies on the assumed difficulty of solving the elliptic curve discrete logarithm problem (ECDLP). The document proves various mathematical aspects behind symmetric bilinear pairings and their use in elliptic curve cryptography.
SUITABILITY OF COINTEGRATION TESTS ON DATA STRUCTURE OF DIFFERENT ORDERSBRNSS Publication Hub
This document summarizes research investigating the suitability of cointegration tests on time series data of different orders. The researchers used simulated time series data from normal and gamma distributions at sample sizes of 30, 60, and 90. Three cointegration tests (Engle-Granger, Johansen, and Phillips-Ouliaris) were applied to the data. The tests were assessed based on type 1 error rates and power to determine which test was most robust for different distributions and sample sizes. The results indicated the Phillips-Ouliaris test was generally the most effective at determining cointegration across different sample sizes and distributions.
Artificial Intelligence: A Manifested Leap in Psychiatric RehabilitationBRNSS Publication Hub
Artificial intelligence shows promise in improving psychiatric rehabilitation in 3 key ways:
1) AI can help diagnose and treat mental health issues through virtual therapists and chatbots, improving access and reducing stigma.
2) Technologies like machine learning and big data allow personalized interventions and more accurate diagnoses.
3) The COVID-19 pandemic has increased need for mental health support, and AI may help address gaps by providing remote services.
A Review on Polyherbal Formulations and Herbal Medicine for Management of Ul...BRNSS Publication Hub
This document provides a review of polyherbal formulations and herbal medicines for treating peptic ulcers. It discusses how peptic ulcers occur due to an imbalance between aggressive and protective factors in the gastrointestinal tract. Common causes include H. pylori infection and NSAID use. While synthetic medications are available, herbal supplements are more affordable and have fewer side effects. The review examines various herbs that have traditionally been used to treat ulcers, including their active chemical constituents. It defines polyherbal formulations as combinations of two or more herbs, which can enhance therapeutic effects while reducing toxicity. The document aims to summarize recent research on herb and polyherbal formulation treatments for peptic ulcers.
Current Trends in Treatments and Targets of Neglected Tropical DiseaseBRNSS Publication Hub
This document summarizes current trends in treatments and targets of neglected tropical diseases. It begins by stating that neglected tropical diseases affect over 1.7 billion people globally each year and are caused by a variety of microbes. The World Health Organization is working to eliminate 30 neglected tropical diseases by 2030. The document then discusses several specific neglected tropical diseases in more detail, including human African trypanosomiasis, Chagas disease, leishmaniasis, soil-transmitted helminths, and schistosomiasis. It describes the causative agents, transmission methods, symptoms, affected populations, and current treatment options for each of these diseases. Overall, the document aims to briefly discuss neglected infectious diseases and treatment
Evaluation of Cordia Dichotoma gum as A Potent Excipient for the Formulation ...BRNSS Publication Hub
This document summarizes a study that evaluated Cordia dichotoma gum as an excipient for oral thin film drug delivery. Films were prepared with varying ratios of the gum, plasticizers (methyl paraben and glycerine), and the model drug diclofenac sodium. The films were evaluated for properties like thickness, folding endurance, tensile strength, water uptake, and drug release kinetics. The results found that a film with 10% gum, 0.2% methyl paraben and 2.5% glycerine (CDF3) exhibited the best results among the formulations tested. Stability studies showed the films were stable for 30 days at different temperatures. Overall, the study demonstrated that C.
Assessment of Medication Adherence Pattern for Patients with Chronic Diseases...BRNSS Publication Hub
This study assessed medication adherence and knowledge among rural patients with chronic diseases in South Indian hospitals. 1500 hypertensive patients were divided into intervention and control groups. The intervention group received education from pharmacists at various times, while the control group did not. A questionnaire evaluated patients' medication knowledge at baseline and several follow-ups. The intervention group showed improved medication knowledge scores after education compared to the control group. Female gender, lower education, and income were linked to lower knowledge. The study highlights the need to educate rural patients to improve medication understanding and adherence.
This document proposes a system to hide information using four algorithms for image steganography. The system first encrypts data using a modified AES algorithm. It then encrypts the encrypted data using a modified RSA algorithm. Next, it uses a fuzzy stream algorithm to add ambiguity. Finally, it hides the encrypted data in the least significant bits of cover images using LSB steganography. The document evaluates the proposed system using metrics like PSNR, MSE, and SSIM to analyze image quality and the ability to hide data imperceptibly compared to other techniques. It selects four color images as cover files and tests the system on them.
The document discusses Goldbach's problems and their solutions. It summarizes that the ternary Goldbach problem, which states that every odd number greater than 7 can be represented as the sum of three odd primes, was solved in 2013. It also discusses Ramare's 1995 proof that any even number can be represented as the sum of no more than 6 primes. The document then provides proofs for theorems related to representing numbers as sums of primes and concludes there are an infinite number of twin primes.
The document summarizes research on k-super contra harmonic mean labeling of graphs. It defines k-super Lehmer-3 mean labeling of a graph as an injective vertex labeling such that the induced edge labels satisfy certain properties. It proves that several families of graphs admit k-super Lehmer-3 mean labeling for any positive integer k, including triangular snakes, double triangular snakes, alternative triangular snakes, quadrilateral snakes, and alternative quadrilateral snakes. The document introduces the concept of k-super Lehmer-3 mean labeling and investigates this property for these families of graphs.
The document summarizes research on using various iterative schemes to solve fixed-point problems and inequalities involving self-mappings and contractions in Banach spaces. It defines concepts like non-expansive mappings, mean non-expansive mappings, and rates of convergence. The paper presents two theorems: 1) an iterative scheme for a sequence involving a self-mapping T is shown to converge to a fixed point of T, and 2) an iterative process involving a self-contraction mapping T is defined and shown to converge. Limiting cases are considered to prove convergence as the number of iterations approaches infinity.
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Slides from a Capitol Technology University webinar held June 20, 2024. The webinar featured Dr. Donovan Wright, presenting on the Department of Defense Digital Transformation.
Information and Communication Technology in EducationMJDuyan
(𝐓𝐋𝐄 𝟏𝟎𝟎) (𝐋𝐞𝐬𝐬𝐨𝐧 2)-𝐏𝐫𝐞𝐥𝐢𝐦𝐬
𝐄𝐱𝐩𝐥𝐚𝐢𝐧 𝐭𝐡𝐞 𝐈𝐂𝐓 𝐢𝐧 𝐞𝐝𝐮𝐜𝐚𝐭𝐢𝐨𝐧:
Students will be able to explain the role and impact of Information and Communication Technology (ICT) in education. They will understand how ICT tools, such as computers, the internet, and educational software, enhance learning and teaching processes. By exploring various ICT applications, students will recognize how these technologies facilitate access to information, improve communication, support collaboration, and enable personalized learning experiences.
𝐃𝐢𝐬𝐜𝐮𝐬𝐬 𝐭𝐡𝐞 𝐫𝐞𝐥𝐢𝐚𝐛𝐥𝐞 𝐬𝐨𝐮𝐫𝐜𝐞𝐬 𝐨𝐧 𝐭𝐡𝐞 𝐢𝐧𝐭𝐞𝐫𝐧𝐞𝐭:
-Students will be able to discuss what constitutes reliable sources on the internet. They will learn to identify key characteristics of trustworthy information, such as credibility, accuracy, and authority. By examining different types of online sources, students will develop skills to evaluate the reliability of websites and content, ensuring they can distinguish between reputable information and misinformation.
2. Vijayapriya, et al.: Assessment of zooplankton diversity in Kosavampatti lake
IJPBA/Apr-Jun-2019/Vol 10/Issue 2 112
lake serve as a nesting place for birds. Namakkal
is a selection grade municipality with 39 wards,
having a population of 120,957 as per the Census
2011. The total area is 55.24 km2
and the floating
population is greater than 25,000. In addition,
under the Municipal Administration and Water
Supply Government Order No. 29 dated March 18,
2013, Namakkal town was declared as “Heritage
Town.”[8]
The lake locates on the Sendamangalam
road on the eastern side of the bus stand in the
town and northern side of the kosavampatti, which
accounted for a water spread area of 36 acres.[9]
A decade earlier, this lake was the main source
for drinking water supply and farm operations
and the storage of water played a major role in
recharging groundwater in the surrounding area
in a big way.[8]
Hence, the present study aimed
to determine the physicochemical parameters of
water, zooplankton richness, abundance, evenness,
dominance, diversity, and seasonal variation;
the correlation between physical zooplankton
densities was used to understand the intermediate
relationship between the water quality and aquatic
organisms. The results indicate the wealth of
aquatic ecosystem which would be helpful for the
aquaculture management practices
MATERIALS AND METHODS
Study area
Kosavampatti Lake is located at Namakkal District
in Tamil Nadu, India, with latitude and longitude
of 11° 13’ 46.5312’’ N and 78° 10’ 16.1688’’ E.
The lake draws water during rainfall in Namakkal
Municipality, and major activities carried out
around the lake are fishing and irrigation for
agriculture.
Field sampling
The surface water sample was collected from
the pond once in a fortnight in the early hours of
the day from October 2017 to September 2018. The
water samples were collected using a 1-L container
for the estimation of water quality parameters.
The collected samples were immediately taken to
the laboratory for analysis.The estimation was done
using the standard book of Kumar and Kakrani.[10]
Zooplankton sampling
Zooplankton samples were collected by filtering
100 L of water from the surface of the water
body through plankton net (40 µm mesh size) and
was fixed immediately with 4% formalin. The
systematic identification of zooplankton was made
using standard keys of Dhanapathi[11]
and Altaff.[12]
The quantitative analysis of planktonic organisms
was carried out using Sedgwwick Rafter’s
Plankton Counting Chamber. The surface water
samples were collected from the collection site
between 8.00 am and 10.00 am in plastic bottles.
The different physicochemical characteristics were
analyzed as per the procedure is given in APHA.[13]
RESULTS AND DISCUSSION
Zooplankton is the significant foodstuffs for most
of the aquatic organisms. Virtually, larval stages
of all the fishes depend on zooplankton and few
of them solely depends on planktons. Monthly
distribution and variation of zooplankton species
are shown in Table 1. The zooplankton pollution
has obviously been detected based on the aquatic
composition including Copepods, Cladocera,
Ostracods, Protozoa, and Rotifera. The present
study recorded the zooplankton density and
composition in a monthly variation. The
concentration of zooplankton was recorded in the
month of March, April, and May which exhibited
maximum; the minimum was documented in the
month of September, October, and November .
Zooplankton concentration showed at higher
density in the summer season, which exhibited in
Figure 1. Similarly, the maximum concentration of
zooplankton population was also reported during
summer by Joshep and Yamakanamardi,[14]
Amsha
Devi et al.,[2]
and Karthika et al.[1]
The maximum
population found in the summer is due to the greater
water temperature as it augments the biological
activity and proliferation of zooplankton. In
addition, the composition and abundance of each
zooplankton group varied from time to time and
seasonanddependedonlimnologicalcharacteristics
of the water body. In the present study, the various
groups of zooplankton and their respective species
such as Copepods – 4, Cladocera – 3, Ostracods
– 3, Protozoa – 4, and Rotifera – 5 are presented
in Table 1. Rotifera was found to be the dominant
group and has higher diversity among zooplankton
3. Vijayapriya, et al.: Assessment of zooplankton diversity in Kosavampatti lake
IJPBA/Apr-Jun-2019/Vol 10/Issue 2 113
community, as presented in Figure 2. Normally,
Rotifera dominates among zooplankton, indicating
that the lake water became polluted in nature.
Similarly, Malik and Shikha[15]
have observed
maximum density and diversity of rotifer in
Bhimtal Lake of Kumaon Region, Uttarakhand.
Rotifer group was dominated by Brachionus sp.
The presence of different species of Brachionus,
Rotaria, Gastropus, Polyartha, and Keratella
shows that the lake is approaching toward
eutrophication and is naturally polluted as
observed by other workers.[16,17]
The density of
rotifer in Kosavampatti Lake during the study
period is as follows – May September
January. The maximum density of cladoceran
was observed in the March due to the favorable
condition of abiotic factors and the availability
of abundant food. Sharma et al.[18]
have observed
Table 1: Distribution of zooplankton at Kosavampatti Lake from October 2017 to September 2018
Organisms 2017 2018
October November December January February March April May June July August September
Cladocerans
Alona ++ + + + + + + + + + + + +
Bosmania + + + + + + + + + + + + + +
Daphnia sp. + + + + + + + + ++ + + + +
Copepods
Diaptomus + + + + − + + + + + + + + + + + + +
Eyclops + + + − + + + + + + + + + + + + +
Heliodiaptomus + ++ + + + + + + + + + + + + +
Paracyclops + + + + + + + + + + + + + +
Ostracods
Cyclocypris + + + + + + + + + + + + + +
Cyperis + + + + + + + + + + + + + +
Steno cypris + + + + + + + + + + + + + +
Protozoa
Difflugia + ++ + + + + + + + + + + + + + + + + +
Nebela + + + + + + + + + + + + + + + + + + + +
Paramecium + ++ + + + + + + + + + + + + + + +
Vorticella + + + + + + + + + + + + + +
Rotifers
Brachionus + ++ + − + + ++ + + + + + + + +
Gastropus + + + + + + + ++ + + + + + + +
Keralullo + ++ + + + + + + + + + + + + + + + + +
Polyartha + + + + + + + + + + + + + + + + + +
Rotaria + + + + + + + + + + + + + + + + + + + +
Figure 1: Monthly distributions of zooplankton population in Kosavampatti Lake from October 2017 to September 2018
4. Vijayapriya, et al.: Assessment of zooplankton diversity in Kosavampatti lake
IJPBA/Apr-Jun-2019/Vol 10/Issue 2 114
the maximum density of cladoceran in winter
compared to other seasons in Temple Pond,
Birpur, India. This group was dominated by Alona,
Daphnia sp., and Bosmina sp., indicating that the
lake is towards organically polluted. Cladoceran
was the next dominant group among zooplankton
community consisting of 24% of the zooplankton
population [Figure 2]. The density of cladocerans
in Kosavampatti Lake during the study period is
as follows – March August December. It is
inversely connected to other zooplankton groups.
Copepoda group among zooplankton community
consists of 20% of the zooplankton population
[Figure2].ThisgroupwasdominatedbyDiaptomus,
Eyclops , Heliodiaptomus, and Paracyclops. The
presence of Diaptomus sp. indicates that the lake
is toward organically polluted copepods.[19]
The
polluted in Kosavampatti lake during the study
period are as follow April January August.
Karthika et al.[1]
have reported that the maximum
density of Ostracoda in summer due to the
availability of food, high values of temperature,
and salinity. In the present study, Ostracoda
group among zooplankton community consists
of 3% and it represented very low population
density when compared to other zooplankton
groups [Figure 2]. This group was dominated
by Cyclocypris, Cypris, and Steno cypris. The
presence of Cypris sp. indicates that the lake is
toward organically polluted.[19]
The density of
Ostracoda in Kosavampatti Lake during the study
period is as follows April December July.
CONCLUSIONAND RECOMMENDATIONS
The present study of Kosavampatti lake water
assessment shows the diverse fluctuation and
densities among zooplankton throughout the year.
The results of the water quality clearly show that
the most number of parameters was higher than
the desirable limit. This investigation confirms that
KosavampattiLakeispollutedduetoeutrophication
and a various population of zooplanktons. Hence,
the status of water quality of Kosavampatti Lake
should be protected and conserved by raising the
awareness of the local people and by reducing
anthropogenic activities. The district administration
and the Public Works Department should take
immediate steps for the desilting and renovation of
all the lakes in the district, especially Kosavampatti
Lake to increase the water holding capacity.
Referring to Kosavampatti Lake, the present study
results urge the authorities to prevent the lake water
from getting polluted with the mixing of sewage
water. This will check the groundwater getting
polluted. All the encroachments in the water spread
area should be removed and steps should be taken
for deepening the lake to increase its water holding
capacity. The local people have also demanded
Namakkal Municipality to take steps for the
beautification of the lake and its bunds and convert
it into a tourist attraction.
REFERENCES
1. Karthika M, Shabana S, Ramasubramanian V.
Assessment of water quality and zooplankton diversity
in the freshwater ecosystem (Lake)- In India. Int Res J
Env Sci 2017;6:23-33.
2. Amsha Devi V, Baskaran S, Suresh Kumar R. Physico-
chemical parameters and zooplankton diversity of a
temple pond in Virudhunagar, Tamil Nadu. Int J Sci
Environ Technol 2013;2:250-7.
3. Aman S, Sharma SK, Varun M, Ekta S. Freshwater
Zooplankton: An introduction and Their Role in
Aquaculture. Aquafind 2016.
Figure 2: Percentage of zooplankton population in Kosavampatti Lake from October 2017 to September 2018
5. Vijayapriya, et al.: Assessment of zooplankton diversity in Kosavampatti lake
IJPBA/Apr-Jun-2019/Vol 10/Issue 2 115
4. Ochocka A, Pasztaleniec A. Sensitivity of plankton
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news/national/tamil-nadu/kosavampatti-lake-in-poor-
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AV. Zooplankton diversity, abundance
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J Sci Res 2015;4:1651-4.
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