Vliz poster fiddy

•Download as PPT, PDF•

0 likes•325 views

Weekly samples of phytoplankton and water were taken from four stations around Djuanda reservoir with different levels of fish cage aquaculture (FCA) density. Phytoplankton abundance was analyzed along with diversity and similarity indices. There was a positive correlation between FCA density and phytoplankton abundance but higher FCA density decreased diversity. Four classes of phytoplankton from 18 genera were identified with Cyanophyceae being the most abundant. Microcystis sp. had the highest individual abundance and station IV the overall highest phytoplankton levels. A negative correlation was found between FCA density and diversity indices. Further study of FCA carrying capacity is needed to ensure sustainable

Education

Padjadjaran
University
Bandung - Indonesia
• Phytoplankton and water sample were taken weekly at four chosen
stations with different crowd levels of FCA
• Phytoplankton data was analyzed by calculating the abundance,
Simpson’s dominance index, Simpson’s diversity index and Sorenson
similiarity coeficient. Ordination technique was used in order to see if
there is a correlation between diversity index and different of crowd
levels of FCA in each stations.
Organic input
materials from fish
feed residue, fecal
pellets and
metabolism
Decomposition
Aerobic
(NO3, PO4)
Anaerobic
(CH4, H2S)
Changes in physical
and chemical in
water reservoir
Changes in
community
structure of
Phytoplankton
Fig. 1. Scheme of the problem approach
There is a positive correlation between the density FCA with abundance
of phytoplankton in Djuanda reservoir. However, increasing density of
FCA causes a decrease of diversity index of phytoplankton
Further studies to determine the location, density, size or determining
the amount of FCA based on the movement of water and bio-
decomposition of bio-organic matter and also to study the carrying
capacity the reservoir, especially related to sustainable aquaculture
Fiddy Semba Prasetiya
Faculty of Science and Bio-engineering, ICP Ecological Marine Management
Vrije Universiteit Brussel, Campus Etterbeek, Pleinlaan 2, 1050 Elsene – Brussels, Belgium
mail to: fsembapr@vub.ac.be Tel: +32485833827
Fig. 2. Map of Djuanda reservoir. Numbers represent the sampling sites where
both of water and phytoplankton samples were taken
0.96%
2.08%
96.80%
0.16%
0%
Bacillariophyceae
Chlorophyceae
Cyanophyceae
Dinophyceae
Euglenophyceae
0.96%
2.08%
96.80%
0.16%
0%
Bacillariophyceae
Chlorophyceae
Cyanophyceae
Dinophyceae
Euglenophyceae
• 4 classes with 18 genera of
phytoplankton were found
Bacillariophyceae (5 genus),
Chlorophyceae (8 genus),
Cyanophyceae (3 genus), &
Dinophyceae (2 genus) (Fig.
3)
Fig. 3. Percentage of phytoplankton based on the class
form Djuanda reservoir
• Microcystis sp. has the
abundance of 4428 ind/L
• Highest abundance of
phytoplankton was found in
station IV (Fig. 4)
Fig. 4 Abundancy of phytoplankton (individu/L) at 4 different sampling stations
• Relationship between
different crowd levels of
FCA were found with
correlation coefficient value
of – 0.835
• Relationship between
different crowd levels of
FCA were found with
correlation coefficient value
of – 0.835
The Effect of fish cage aquaculture
on the community structure of phytoplankton
in Djuanda reservoir, West Java – Indonesia

This study examined the impact of human activity on water quality near Avalon Bay, Catalina Island, CA. Water samples were collected from 4 stations located 1-2 miles from the bay at varying depths. Tests found higher levels of ammonium, nitrate, fecal bacteria and chlorophyll closer to the bay, indicating pollution from sources like sewage. Farther from the bay, levels of these contaminants decreased while biomass and total microorganisms increased, showing less negative human impact. The results support the hypothesis that waters nearer to the human population center exhibit stronger signs of contamination than more distant waters.

Bridgewater (2013) Muddy River Biodiversity

Angeline Chen

This study investigates the relationship between microbial biodiversity and sediment contamination in two ponds within the Muddy River system. Willow Pond downstream is known to be contaminated with oil, pesticides and heavy metals, while Ward's Pond upstream has little contamination. Sediment samples from both ponds will be analyzed chemically and microscopically to quantify contaminant levels and compare microbial populations. Previous studies have found microbial indicators can assess water quality and ecosystem health in a simple, inexpensive way. The researchers hypothesize microbial diversity will be lower in Willow Pond's more contaminated sediments.

Assessment of Faecal Pollution at Jomo Kenyatta Public Beach Mombasa

Maxwell Azali

This document presents an overview of a study assessing levels of faecal pollution at Jomo Kenyatta Public Beach in Mombasa, Kenya. The study aims to investigate the extent of faecal pollution at different areas of the beach and whether levels vary between high and low tides. Enterococci and E. coli will be used as indicators to collect water samples from 5 stations along the beach bi-weekly over 3 months. Enumeration, data analysis and comparison to recreational water quality guidelines will help determine if the beach water is suitable for recreation.

Final EHS 428 Poster

Sasha Heralall

This study analyzed nutrient and bacterial concentrations in Bowne Park Pond over time. Algal blooms were previously observed, indicating potential eutrophication. Water samples were tested for nutrients and bacteria using various methods. Results showed high nutrient levels, likely due to surface runoff during heavy rainfall. Total coliform levels increased from 18 to 24 hours of incubation. Enterococcus levels remained relatively constant, suggesting it may be a more stable indicator of contamination than E. coli or total coliform. Future studies are needed to determine if the pond is prone to eutrophication, and if remedial actions are required to protect the marine habitat and public.

Bacteriological Investigation of Well Water Samples from Selected Market Loca...

inventionjournals

International Journal of Pharmaceutical Science Invention (IJPSI) is an international journal intended for professionals and researchers in all fields of Pahrmaceutical Science. IJPSI publishes research articles and reviews within the whole field Pharmacy and Pharmaceutical Science, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject. The publications of papers are selected through double peer reviewed to ensure originality, relevance, and readability. The articles published in our journal can be accessed online.

SURF 2014 Poster - Code 201409

Felicia Lim

This study assessed the impact of urban intensification on water quality and microbial communities in canals in Suzhou, China. Samples were taken from sites with high, medium, and low population densities in both summer and spring. Nutrient levels, leaf litter breakdown, and microbial abundance varied between intensity areas and seasons. Microbial communities showed elevated nutrients and microbial levels in highly urbanized sites. Organic matter broke down faster in summer. Sequencing of microbial communities is ongoing but results so far indicate urbanization alters water quality and microbes.

Legionellen Lund Universität

Roland Ritter

This study analyzed bacterial communities in drinking water biofilms using next-generation sequencing of 16S rRNA genes. Biofilm samples were collected from water meters and pipes in a drinking water distribution system in southern Sweden. Over 600,000 DNA sequences were obtained and classified. The bacterial communities differed between water meters from households with and without complaints about water quality. Water meters from complaining households had fewer Proteobacteria and more Nitrospira and Pedomicrobium. Biofilm communities also differed between water meters and pipes, with pipes containing more Mycobacterium, Nocardia, Desulfovibrio, and Sulfuricurvum. Next-generation sequencing resolved bacterial diversity and differences in communities associated with water quality

Domagoj šegregur, croatia, fishes as bioindicators of water pollution of river

Mohd Subri

This document summarizes a study on using fish as bioindicators of water pollution in the Drava River in Croatia. Specifically: - Water and fish samples were taken from upstream and downstream of a potential pollution source, the Županijski Canal, which flows into the Drava River. - Biometric parameters, liver enzymes, metal levels, and metallothionein levels in fish livers were analyzed and compared between the two sites. - Results found water quality was the same at both sites but downstream fish had higher metal and metallothionein levels and lower condition indices, indicating the canal contributes to metal exposure impacting the fish. - The study confirms selected fish

This document summarizes a study on the effect of increasing sewage waste on microbe populations in the River Yamuna in India. Water quality parameters like BOD, ammonia, chlorides and sulphates indicated high levels of organic pollution, especially at sites downstream from urban and industrial areas. Populations of coliform bacteria and algae like Ulothrix, which thrive in polluted conditions, were highest where pollution loads were also highest. In contrast, populations of microbes like Paramecium, Difflugia and Cyclops declined significantly with increasing pollution, especially during summer months when pollution concentrations were highest due to lower water levels. The results suggest heavy pollution is negatively impacting the river's ecological balance.

displayarticle

Sharon Stewart

This document describes an experiment assessing the use of green crabs (Carcinus maenas) as indicator species in the Multispecies Freshwater Biomonitor (MFB), an online water quality biomonitor. The experiment tested whether: 1) the electrical field of the MFB affects crab behavior; 2) ammonia presence alters crab behavior; 3) the electrical field further impacts behavior in ammonia's presence. Results showed the electrical field did not significantly impact crabs on its own. Ammonia did alter crab behavior in a dose-dependent manner. Five distinct crab behaviors were detected by the MFB. Overall, green crabs appear suitable for use in the MFB as marine biomonitors.

Microbial diversity in water & sediment of karanja creek

Prabhakar Pawar

Contamination of marine environment is an inevitable consequence of anthropogenic activities and bacterial communities quickly respond to such alterations. The use of indicators for evaluating the microbiological quality of the marine surface water is a worldwide practice. Mumbai, a major metropolis and Business capital city of India, is situated on the west coast of Indian peninsula on the Arabian Sea. Mumbai is a natural harbour and also one of the world’s most populous cities called as the Urbs Prima of India. Nearly 8% of the ndustries of the country are located around Mumbai. Coastal region in and around Mumbai receives 0.85 millions m3/d of liquid effluent and 14,600 t/d of solid waste without any treatment, which deteriorates the coastal ecosystem. The Karanja creek situated 30 km. away from Mumbai and 10 km away from Jawaharlal Nehru Port Trust (JNPT), receives voluminous amount of domestic and industrial waste. The creek is a major fishing ground for finfishes and shellfishes; it was not surveyed for its microbiological quality. During present investigation, water and sediment samples from Karanja creek were monitored seasonally for coliform bacteria during 2004. The samples were analyzed by Presumptive test, Confirmed tests, Completed test and Biochemical tests like IMViC (Indole test, Methyl red test, Voges-Proskauer test and Citrate utilization test). Standard Plate Count (SPC) for coliforms from sediment was found to be much higher than that of water. The data on presumptive test by Most Probable Number (MPN) was high during monsoon than that of post monsoon in surface water. IMViC tests were positive, confirming the presence of fecal and non-fecal coliforms. The present study highlights the diversified nature of coliform species namely Escherichia coli, Klesiella pneumoniae, Enterobacter aerogenes, Proteus mirabilis and Salmonella typhimurium of family enterobacteriaceae from water and sediment samples of Karanja creek. Result of present investigation confirms the microbial pollution in Karanja creek to certain extent. This microbial pollution is correlated to the release of untreated or partially treated domestic and industrial wastes. The data presented can be taken as a base line data in knowing the impact of human activity on the creek ecosystem in near future.

Water sampling paper

angelinfigueroa

The study tested water samples from the Arroyata River in Cidra, Puerto Rico for the presence of total coliforms, fecal coliforms, and enterococcus bacteria. Samples were collected from three sections of the river and analyzed using Colilert and Enterolert substrates. All six samples tested positive for total coliforms, fecal coliforms, and enterococcus, though the amounts of each bacteria decreased with increasing distance from town. The results indicate that the river water quality decreases with proximity to developed areas and that the water contains pathogens that could endanger human and animal health if ingested without treatment.

Multiple Use of Surface Water Resources and Bacteria Colonization of Water Bo...

Editor IJCATR

Water samples collected along the water courses of surface water sources of domestic water supply in Ezinihite Mbaise were analyzed for bacterial species inventory and total viable count (TVC) using the multiple test tube technique and colony counters. The surface waters covered include Ariam River and other tributaries that constitute the bulk of surface water resources in the area. Eight species of bacteria including E-coli, staphylococcus aureus, salmonella, and fecal streptococci among others were identified. Total viable counts gave alarming growth levels when compared o the standards as set by the world health organization (WHO). The microbial population explosion in the river is attributable to the multiple activities within and around the river also the uses including wash off from abattoirs carrying abattoir wastes directly into the river, domestic wastes dumped along the recharge path, others include in stream fermentation of food stuff and general laundry point for any for clothes, automobiles. All these make sufficiently available to enhance microbial growth. Surface water use should be monitored to ensure sustainability and proper management of watershed will control this trend of colonization of public water supply sources and in turn control the trends in water borne infections.

Blaak Vet Micr 2014

Raditijo Hamidjaja

This document summarizes a study investigating the prevalence of ESBL-producing E. coli bacteria in four Dutch recreational waters and the potential role of nearby wastewater treatment plants (WWTPs) as contamination sources. Samples were taken from recreational waters, WWTP effluents, surface waters upstream and downstream of WWTP discharge points, and additional surface waters not influenced by the WWTPs. ESBL-producing E. coli were detected in all recreational waters and 62% of samples, with concentrations averaging 1.3 CFU/100ml. Isolates with identical genetic characteristics were found in WWTP effluents and surface waters, including occasionally in recreational waters, indicating WWTPs contribute to their presence. However,

Accumualtion of TBT and Intersex Occurence on Marine Snails Littoraria Scabra

guest68e9c2

This study examined the accumulation of tributyltin (TBT) and the occurrence of intersex in the marine snail Littoraria scabra collected from two locations in Indonesia. The snails accumulated TBT when exposed to contaminated water and sediment/food at concentrations of 1, 2, and 3 ppb, with higher accumulation at 3 ppb. Measurement of intersex stage showed higher levels in snails from Bitung Coastal Waters compared to Amurang Bay, indicating greater TBT contamination. The study concludes that L. scabra can be used as a biomonitor for TBT contamination through measurement of accumulation and intersex occurrence.

American Journal of Current & Applied Research in Microbiology

SciRes Literature LLC. | Open Access Journals

Artifi cial wetlands are useful for wastewater treatment; however, relatively little is known of the effects of sewage on artifi cial wetland microbial community structure. Therefore, we assessed the effect of municipal sewage on microbial community diversity in surface water throughout an artifi cial wetland (Xiantao artifi cial wetland) treating municipal sewage. We analyzed the relationship between physicochemical parameters of surface water (i.e., Chemical Oxygen Demand (COD), Total Nitrogen (TN), Total Phosphorus (TP), and NH4+-N) with microbial community structure (Illumina MiSeq sequencing followed by abundance indices). The results showed that the total microbial community in surface water was signifi cantly correlated with COD, TN, TP, and NH4 +-N (r = 0.764, 0.897, 0.883, 0.839, P < 0.05). In addition, the most abundant taxa were significantly correlated with COD (r = 0.803, P < 0.05). The relative abundance of rare operational taxonomic units in the more purifi ed water farther downstream was higher than in the polluted area, suggesting that rare groups were more sensitive to physicochemical parameters than abundant groups, and that the abundance of some bacteria could indirectly indicate the degree of aquatic pollution. Our results indicate that the responses of microorganisms in artificial wetlands to environmental conditions should be considered to ensure efficient treatment.

Shane Donaghy (2013) Dissertation (Full Text)

Shane Donaghy

This document is a dissertation submitted in partial fulfillment of a Bachelor's degree in environmental sciences. It presents the results of a study monitoring the phytoplankton communities in a eutrophic Irish lake over a 6-month period from January to July 2012. Phytoplankton assemblages were found to follow clear seasonal successional patterns related to changing water quality and nutrient conditions. Their composition supported the lake's status as healthy but bordering on mesotrophic/eutrophic. The study evaluated phytoplankton as biological indicators for monitoring water quality and ecological status under the EU Water Framework Directive.

Interactive Typologies

nfaulconer

This document presents an abstract for a thesis about the interaction between built and natural systems. As populations grow and concentrate in cities, these interactions are becoming more important. The thesis will immerse occupants in a series of built typologies expressing different levels of integration with natural ecologies. The St. Johns River system and Jacksonville, FL will serve as the natural and built contexts. A mixed-use development anchored by an ecological center will exhibit and research the river basin through typologies ranging from closed research biomes to open natural areas. The goal is to condense and experience the hydrological and ecological connections of the river system from freshwater headwaters to the brackish mouth.

Physicochemical Controls On Transport of Veterinary Pharmaceuticals And Hormo...

National Institute of Food and Agriculture

This document summarizes research on the physicochemical controls of transport of veterinary pharmaceuticals and hormones to surface waters. The research examined how sorption to soil phases and facilitated transport by fine particles can influence the fate and transport of antibiotics in the environment. Completed and ongoing work is described that examines the long-term sorption kinetics of lincomycin to biochars under varying conditions, as well as the potential for biochar particles to facilitate the transport of antibiotics through saturated porous media. The research aims to better understand how biochar amendments may reduce the transport and bioavailability of antibiotics in soil.

Physico-Chemical and Microbial Analysis of Drinking Water of Four Springs of ...

IJEAB

Drinking water of good quality is essential for human physiology whose continual existence depends on the availability of water and any sort of contamination in water which is above the standard limits set by international water regulating agencies can lead to water related diseases. So, the present investigation was conducted to determine the physico-chemical and bacteriological contents of four springs i.e.Heshi spring 1, Heshi spring 2, Kitaab Roong, and Kooti spring and its distribution system such as water reservoir inlet, outlet, mid and end point of distribution systems, junction where it merge with glacier water. The temperature was in a range of 13oC - 22oC. The turbidity of water samples fluctuate from 0.02NTU-1.99NTU. The pH value was in a range of 6.2-7.1. Electrical conductivity range of minimum 122µS/cm to a maximum of 600µS/cm. The TDS of all water samples ranging from minimum of 164-513mg/l. The amount of reactive ortho phosphate was in a range of 26mg/l to 59mg/L. The amount of total phosphorous was in a range of minimum 23m/L to maximum of 120mg/L. The total bacterial count was in a range of 11CFU/100ml to 83 CFU/100ml.The findings showed there should be comprehensive standardization of drinking water of Danyore village according to guidelines of WHO water quality standards and make it safe for human consumption.

Detection Of Escherichia Coli, An Indicator Of Feacal Contamination, In Drink...

IOSR Journals

The detection of Escherichia coli as an indicator of faucal contamination in drinking water sources in Amassoma town, a host Community of the Niger Delta University, Bayelsa State in the Niger Delta of Nigeria, was carried out to determine their suitability for drinking. Result obtained showed mean total coliform bacterial counts of 2.05 x103 cfu/ml for borehole water, 1.25x103 cfu/ml for well water and 1.0x103 for pipe borne water. The mean count of faecal coliform was 2.1x103 cfu/ml for borehole water, 4.5x10 cfu/ml for well water and 1.0x10 cfu/ml for pipe borne water. The faecal coliform identified was Escherichia coli. Sources of contamination were found to be septic tanks, waste dump sites and periodic flooding of the area, being a typical wetland environment. It was concluded that water from the different sources studied in Amassoma did not meet the world health Organization (WHO) standard for drinking water. This study has therefore shown the need for continuous monitoring of our water supply systems.

Feng_Karim_URS2014

Numan Karim

This study examined how water clarity and time of day affect a bass's ability to detect color patterns. Researchers measured the downwelling and sidewelling irradiance in clear and tea-stained water at 8am using a spectrophotometer. They found clear water let through most wavelengths while tea-stained water blocked wavelengths from 400-500nm. By determining bass prey preference by color, the study established which colors bass can likely see to determine how lure color affects their visual appeal and assist fishermen.

Baruch poster

KylieBednarick

The document summarizes an experiment that tested the effects of varying coverage of floating treatment wetlands (FTWs) on water quality in eutrophic pond mesocosms. Three treatments with 0%, 33%, and 66% FTW coverage were tested in triplicate. Water samples were taken over 26 days in June-July 2018 to measure nutrients like nitrate, ammonia, and phosphate. Preliminary results found that FTW coverage dampened temperature and dissolved oxygen swings and reduced algal growth, with higher plant coverage associated with better algae control.

Marine Virus Presentation

Works Progress

This document provides an overview of viruses in the marine environment. It discusses that viruses are the most abundant component of the plankton community, with an estimated 1030 viruses in the ocean. Viruses play important roles in marine health by controlling bacterial and algal populations, influencing microbial food webs and nutrient cycling. They also play a role in microbial diversity and the structure of aquatic microbial communities through limiting specific bacteria and phytoplankton populations.

article_cherabin

Angus Smith

Peter Novak conducted the first study of the life cycle of the cherabin, a small freshwater prawn species found in northern Australian rivers. Over three years, he monitored over 4,500 adult cherabin and tens of thousands of juveniles across a 400 km stretch of the Daly River. He discovered that the cherabin's reproduction and hatching of larvae is timed to the wet season rains from December to March. After the rains, juvenile cherabin migrate upstream in April and May, with up to 14-15 million juveniles replenishing nutrients in the river system. The cherabin must complete their migration to saltwater nurseries within seven days of hatching to survive.

Lec5 Dinophyceae

Warwin Sabasaje

The document summarizes key details about dinoflagellates: - Dinoflagellates are unicellular plankton that are 90% marine, with some freshwater and symbiotic species. About half are photosynthetic. - They reproduce primarily asexually through mitosis, though some reproduce sexually. Their cell coverings can be armored or unarmored. - Some species produce bioluminescence or toxins that can harm humans and fish. Dinoflagellate blooms can discolor water. - Dinoflagellate cysts are found in sedimentary rocks from the Triassic period to present.

Evolution of Protists

hilary farlow

This chapter discusses the evolution and diversity of protists. Protists are a diverse group of eukaryotic organisms that are unicellular or multicellular. They include algae, protozoa, slime molds, and various other organisms. The chapter describes how endosymbiosis led to the development of organelles like mitochondria and chloroplasts. It then discusses the different types of protists, including their methods of movement, reproduction, and ecological importance. Key protist groups covered are algae, protozoa, slime molds, and their varying life cycles.

Dinoflagellate

Politeknik Negeri Malang

Biofuel production from algae

Gouhar Akber

Algae have potential to serve as a feedstock for biofuel production due to their ability to grow rapidly using carbon dioxide, sunlight, and non-arable land or saline water. Some key points are: 1) Algae can double their biomass daily and certain species have been studied for their biofuel potential, growing in various systems like open ponds or closed photobioreactors. 2) Algae require less land than other biofuel feedstocks like soybean and could potentially meet US fuel demands on a small fraction of current agricultural land. 3) Algae cultivation could offer environmental benefits like carbon sequestration from CO2 and remediating nutrients from wastewater.

algae classification

Priyanka Khare

This document classifies and describes different divisions of algae. It discusses five main divisions: Chlorophyta, Euglenophyta, Pyrrophyta, Chrysophyta, and Cyanophyta. For each division, it outlines their characteristic classes, orders, pigments, food reserves, thallus structure, and modes of reproduction. Key examples are provided for representative orders within each division. The classification system serves to organize the wide diversity of algal types based on their shared morphological and physiological traits.

What's hot

Effect of Increasing Sewage Waste on the Population of Some Microbes of River...

SSR Institute of International Journal of Life Sciences

displayarticle

Sharon Stewart

Microbial diversity in water & sediment of karanja creek

Prabhakar Pawar

Water sampling paper

angelinfigueroa

Multiple Use of Surface Water Resources and Bacteria Colonization of Water Bo...

Editor IJCATR

Blaak Vet Micr 2014

Raditijo Hamidjaja

Accumualtion of TBT and Intersex Occurence on Marine Snails Littoraria Scabra

guest68e9c2

American Journal of Current & Applied Research in Microbiology

SciRes Literature LLC. | Open Access Journals

Shane Donaghy (2013) Dissertation (Full Text)

Shane Donaghy

Interactive Typologies

nfaulconer

Physicochemical Controls On Transport of Veterinary Pharmaceuticals And Hormo...

National Institute of Food and Agriculture

Physico-Chemical and Microbial Analysis of Drinking Water of Four Springs of ...

IJEAB

Detection Of Escherichia Coli, An Indicator Of Feacal Contamination, In Drink...

IOSR Journals

Feng_Karim_URS2014

Numan Karim

Baruch poster

KylieBednarick

Marine Virus Presentation

Works Progress

article_cherabin

Angus Smith

What's hot (17)

Effect of Increasing Sewage Waste on the Population of Some Microbes of River...

displayarticle

Microbial diversity in water & sediment of karanja creek

Water sampling paper

Multiple Use of Surface Water Resources and Bacteria Colonization of Water Bo...

Blaak Vet Micr 2014

Accumualtion of TBT and Intersex Occurence on Marine Snails Littoraria Scabra

American Journal of Current & Applied Research in Microbiology

Shane Donaghy (2013) Dissertation (Full Text)

Interactive Typologies

Physicochemical Controls On Transport of Veterinary Pharmaceuticals And Hormo...

Physico-Chemical and Microbial Analysis of Drinking Water of Four Springs of ...

Detection Of Escherichia Coli, An Indicator Of Feacal Contamination, In Drink...

Feng_Karim_URS2014

Baruch poster

Marine Virus Presentation

article_cherabin

Viewers also liked

Lec5 Dinophyceae

Warwin Sabasaje

Evolution of Protists

hilary farlow

Dinoflagellate

Politeknik Negeri Malang

Biofuel production from algae

Gouhar Akber

algae classification

Priyanka Khare

Global ocean’s protist metabarcoding

EukRef

This document summarizes the findings of a study that used genetic metabarcoding of the V9 region of the 18S rRNA gene to characterize eukaryotic plankton communities across different ocean basins and size fractions. Some key findings include: - Over 150,000 genetic barcodes (OTUs) of eukaryotic plankton were identified, following a Preston curve distribution. - The majority of OTUs belonged to protists, with fungi and metazoa making up a smaller proportion. - Many OTUs represented known or putative parasite lineages that infect diatoms, dinoflagellates, and metazoans. - There was a high degree of novelty, with less than 1%

Viewers also liked (6)

Lec5 Dinophyceae

Evolution of Protists

Dinoflagellate

Biofuel production from algae

algae classification

Global ocean’s protist metabarcoding

Similar to Vliz poster fiddy

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.

Emily Shultz-Optimized Seperation of Estuarin Plankton to Determine Associati...

Emily Shultz, M.S.

1. The study developed and optimized a method for separating estuarine plankton using a freshwater plankton separator to quantify associations between Vibrio species and different plankton. 2. Results showed the optimal separation time with the least cross-contamination between phytoplankton and zooplankton was between 30-40 minutes. 3. Determining the relationships between plankton species and Vibrio populations could help predict disease outbreaks from contaminated shellfish and inform monitoring of coastal waters.

Assessment of the Plankton Biodiversity,Bay of Bengal, Cox's Bazar, Bangladesh

AbuMusa51

Qualitative and quantitative analysis of phytoplankton in culture pond of Noa...

AbdullaAlAsif1

A study was conducted on qualitative and quantitative analysis of phytoplankton in cultured ponds of two fish farms of Noakhali district, Bangladesh from 15 September to 15 November 2012 to identify and estimate the abundance of phytoplankton in various culture ponds of two fish farms. Analyses of phytoplankton samples recorded a total of 4 classes phytoplankton viz.; Bacillariophyceae, Chlorophyceae, Cyanophyceae, Euglenophyceae. Out of 21 phytoplankton genera identified, 5 belong to Cyanophyceae, 7 to Chlorophyceae, 5 to Bacillariophyceae and 4 to Euglenophyceae. Among the identified genera, Euglena, Microcystis, Eurolena were found to be dominant genera. Total phytoplankton abundance was varied from 36×105 cells/L to 94.92×105 cells/L in the experimental ponds. Among all experimental ponds, Chlorophyceae was found dominant (44.4×105 cells/L). Second dominant group was Euglenophyceae (39.6×105 cells/L) observed in pond-1 of Bismillah Agro Production (BAP). Total phytoplankton densities were recorded 47.82×105cells/L and 51×105 cells/L in pond-1 and pond-2 of Subarna Agro Based Initiative (SABI) respectively. In BAP, total phytoplankton densities were recorded 94.92×105cells/L and 36×105 cells/L in pond-1 and pond-2 respectively. Management technique and water quality parameters were also studied during study period namely water temperature, conductivity, salinity, transparency, dissolve oxygen and pH. The present study reveals that phytoplankton species are variable among the culture ponds and their density is also variable. The information provides for more research to compare water quality and pond phytoplankton characteristics in earthen aquaculture systems with and without fish stocking. Further studies on the seasonal changes of water quality parameters and its effects on phytoplankton production in the fish ponds and all year extended monitoring is recommended in future studies.

Study of Zooplankton Diversity of Chhapakaiya Pond Birgunj, Nepal

SSR Institute of International Journal of Life Sciences

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

Assessment of nutritive values of some waterweeds

Alexander Decker

This document summarizes a study that evaluated the nutritive values and phytochemical constituents of 10 common waterweeds in Nigeria. The study found that the waterweeds contained 13.67-32.67% crude protein, 4-26% crude fiber, and 7.33-26% ash. The waterweeds also had adequate levels of other nutrients. Though high in moisture, the waterweeds could provide a source of nutrients, especially protein, for livestock during dry seasons. Qualitative analysis found that most waterweeds contained steroids, while four contained saponins and some contained phenols or tannins. Nymphaea lotus was found to have the lowest levels of anti-

Cluster Analysis of Aerobic Heterotrophic Bacteria from Clarias gariepinus an...

Agriculture Journal IJOEAR

Abstract— Fish is a major source of protein for humans, and it is patronized by many in the tropics – where fishes can either be cultivated in the farms domestically or caught from open water bodies such as rivers, ponds and streams. These various sources of fishes and their attendant diversity of microorganisms particularly the bacteria make fishes as potential sources of pathogens. The maintenance of the microbiological quality of food and water is important to prevent waterborne/foodborne diseases in any community, thus the need for this study. A total of 14 samples of water at different points (upstream, midstream and downstream) and 50 samples of live fishes were used for this study. Each of the fish sample was bacteriologically analyzed using the pour-plate and spread plate techniques on culture media plates. And the isolated bacteria were identified using standard microbiological identification techniques. The water samples were subjected to physicochemical analysis to determine the physical and chemical properties of the water. The relatedness of the isolated bacteria was established using cluster analysis/dendogram. The highest bacterial count was obtained from downstream water sample (5.6x10 cfu/ml), indicating a possible pollution of water at this point. Both aerobic heterotrophic Gram positive and Gram negative bacteria were isolated. The Gram positive bacteria isolated include Staphylococcus lugdunensis, S. hominis, S. cohnii, Streptococcus pyogenes, S. pneumoniae, Kocuria varians while the Gram negative bacteria include Raoutella ornithinolytica, Klebsiella pneumoniae, Aeromonas hydrophila, A. veronii, Proteus vulgaris, Serratia fonticola, and Enterobacter gergoriae. Cluster analysis using dendrogram showed some degree of similarity among the different clusters of isolated bacteria. The result of this study presumptively shows that the water sample is polluted; and this in turn affects fresh water fishes in the river. Therefore the microbiological examination of the water at this study site is necessary for monitoring and controlling the quality and safety of the water for usage by the locals.

Isolation and potential culture of phytoplankton live feed for freshwater mus...

AbdullaAlAsif1

Gastropod and Bivalves are widely known as filter feeders which used to feed the phytoplankton and other micro creatures. This study was conducted to identify, isolate and determine the potential culture of phytoplankton species for mussel culture. Materials and Methods: The phytoplankton identification and the culture of phytoplankton in ponds in UPMKB, Sarawak, Malaysia were studied for a period of 3 months from February 2019 to May 2019. Three genera were recorded from the ponds namely Selenastrum sp. followed by Licmophora sp. and Gloeocapsa sp. The highest abundant genus was Licmophora sp. due to their presence in every pond while the highest composition in culture condition was Selenastrum sp. because every treatment had this genus. The impact of physicochemical parameters on phytoplankton compositions and abundances in four ponds in UPMKB was assessed. Water quality parameters, such as temperature, dissolved oxygen, pH and conductivity were measured in situ from the ponds. Phytoplankton compositions and abundances were analyzed in the laboratory. ANOVA result of the physicochemical parameters showed the presence of significant difference among pH and temperature between ponds. The study concluded that the presence of the Selenastrum sp. genus could be the biological indicator of the water quality ponds. The best culture of phytoplankton shown by using the fertilizer treatment which was NPK fertilizer that improves the distribution of the culture of the phytoplankton.

Bacterial indicators and antibiotic resistance of Escherichia coli in groundw...

Agriculture Journal IJOEAR

— The aim of this research was to investigate the groundwater quality in El Barreal basin (Córdoba, Argentina), through bacteriological analysis and antibiotic resistance of fecal bacteria indicators and their relationship with geochemical and land uses characteristics. Groundwater samples were collected in 36 wells and the following parameters were determined: major chemical components, heterotrophic plate counts, total and fecal coliforms, Escherichia coli and Pseudomonas aeruginosa. Antibiotic resistance of E. coli was analyzed using standard methods. The chemical and bacteriological analysis showed that more than 80 % of samples were unfit for human consumption. Bacteriological contamination was significant in 36 % of samples. The multivariate analysis between bacterial and geochemical variables explained local contamination conditions, evidenced by the arrival of bacteria and some typical indicators (NO 3-, Cl-y HCO 3-) to groundwater. No significant correlation between NO 3-and bacterial counts was observed, which let us to interpret that part of NO 3-contents can be supplied by inorganic fertilizers. Total and fecal coliforms were linked to a local increase of Cl-and HCO 3-and a decrease of pH and dissolved oxygen, indicating the arrival and degradation of organic matter into groundwater. The resistance pattern of total E. coli isolates (n=12) showed that the highest percentages were observed for antibiotics of animal use (ampicillin, tetracycline and cephalothin). The analysis of results revealed the impact of land uses demonstrating that livestock activities are the main punctual contaminant sources in this sedimentary aquifer.

Stream sci paper

Mary Glydel Florin

The role of abiotic factors in diurnal vertical distribution of

Alexander Decker

Potentially harmful algae along the kenyan coast a norm or threat.

Alexander Decker

This document summarizes a study of potentially harmful algal species along the Kenyan coast from 2009-2010. A total of 39 potentially harmful algal taxa were observed over the study period. The taxa with the highest abundances were Chaetoceros sp., Nitzschia sp., Coscinodiscus sp., Pseudo-nitzschia sp., Rhizosolenia sp., Anabaena sp., Protoperidinium sp., Oscillatoria sp. and Trichodesnium sp. whereas the lowest abundances were Fibrocapsa sp., Chrysochromulina sp., Umezakia sp., Dinophysis sp. and Aphanizomenom sp. The

composition-of-eukaryotic-and-prokaryotic-rrna-gene-phylotypes-in-guts-of-adu...

Mai wassel

This document summarizes a study that analyzed the diversity of rRNA genes in the guts of adult and fingerling Mugil cephalus (flathead grey mullet) fish inhabiting an Egyptian Mediterranean estuary. Bulk DNA was extracted from the guts and the eukaryotic 18S rRNA gene, bacterial 16S rRNA gene, and archaeal 16S rRNA gene were amplified via PCR, cloned, and sequenced. Rarefaction analyses identified 11, 18, and 13 phylotype groups of rRNA genes for eukaryotes, bacteria, and archaea, respectively, in adult guts, and 6 and 11 phylotype groups for eukaryotes and bacteria in fingerling guts (archaea were not detected in

Isolation of typical marine bacteria by dilution culture - growth, maintenanc...

ITSON

Mpeza publication

Theodoros Mavraganis

The document summarizes a study that monitored water quality and benthic ecosystems around fish farms in Igoumenitsa Bay, Greece between 2011-2012. Water samples found increased nutrients like phosphorus near the fish farms, especially in summer, indicating localized eutrophication. A dispersion model showed waste from the farms could spread over 120 meters, mostly towards the coast. The benthic ecosystem was not significantly disturbed, though a biotic index found potential ecological risk in summer. Increased feeding and fish metabolism in summer, combined with seasonal currents, contributed to the localized nutrient increase near the farms.

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.

journal.pone.0138967

Meaghan Daley

This study investigated the microbiome of three copepod species (Acartia longiremis, Centropages hamatus, Calanus finmarchicus) from the Gulf of Maine over a 3-week period in early summer. The microbiome contained both stable associations and temporal variability. Gammaproteobacteria, especially Pseudoalteromonas species, were consistently abundant across copepod species, suggesting a stable association. However, the microbiome composition also varied between full and starved gut copepods, and over time, influenced by environmental factors like food availability. While some core microbiome was present, temporal changes appeared important in structuring the bacterial communities associated with copepods.

Feeding rate requirements for Schilbe intermedius (Rüppel, 1832) fingerlings ...

Innspub Net

The control of the breeding of Schilbe intermedius in captivity, passes by the determination of its nutritional requirements. The present study aims therefore to determine the optimal feed ration of the fingerlings of S. intermedius. The experiment was carried out in circular basins during 28 days. After their capture in natural environment, their transfer in controlled area and their acclimatization to the artificial food used (coppens: protein 45%.), the fingerlings used (average weight: 3.12±0.83g) were subjected to four feed rations (2, 5, 8 and 11% of the biomass) tested in triplicate each one. Thus, the lowest rate of survival (64.00±1.15%) was recorded for the fingerlings’lot subjected to the ration of 8% where the pH is more acid (5.29).The final average weight (4.63±0.00g), the specific growth rate (1.19±0.08%/day) and the food effectiveness (0.53±0.00) obtained with the ration of 11% were the highest. These values are significantly different (P< 0.05) than those obtained with the ration of 2%.The best consumption index was registered with the ration of 2%. According to the model of Brett, the maximum and optimal daily rations of S. intermedius fingerlings were estimated to 4.6 % and 8.5 % respectively. Get the full articles at: http://www.innspub.net/volume-7-number-6-december-2015-ijaar/

Trophic state indices and Phytoplankton quotients for the Kisumu Bay, Lake Vi...

Douglas Anyona

This study aimed to estimate phytoplankton quotients and trophic state indices for Kisumu Bay in Lake Victoria to determine the bay's eutrophic level. Water and phytoplankton samples were collected from 5 stations in the bay from 2009-2010. Cyanophyceae was the most dominant phytoplankton group at 57%. The mean phytoplankton quotient was estimated to be 4.1, indicating a high eutrophic state. Nutrient levels were also high, with total phosphorus at 289.6 μg/L and total nitrogen at 1518.5 μg/L. The elevated eutrophic state was attributed to high nutrient loads from anthropogenic activities, industrial and

Janet Seifert: What could a 'Whole Earth Stromatolite Catalogue' tell us?

GigaScience, BGI Hong Kong

This document discusses stromatolites and their importance for understanding microbial processes and environmental change over long time periods. Specifically, it mentions: 1) Stromatolite beds that are up to 600 million years old can provide insights into microbial life and Earth's early environments. 2) The formation of stromatolites depends on the bacterial community composition and environmental factors like the precipitation of calcium carbonate facilitated by microbial extracellular substances. 3) Living stromatolites exist today in locations like Cuatro Ciénegas, Mexico, which can serve as models to study microbial metabolic processes and their responses to environmental changes over time.

More from Fiddy Prasetiya

Water pollution in indonesia

Vliz poster fiddy

Recommended

Recommended

More Related Content

What's hot

What's hot (17)

Viewers also liked

Viewers also liked (6)

Similar to Vliz poster fiddy

Similar to Vliz poster fiddy (20)

More from Fiddy Prasetiya

More from Fiddy Prasetiya (20)

Recently uploaded

Recently uploaded (20)

Vliz poster fiddy