Shark and rays
•Download as PPTX, PDF•
0 likes•168 views
Sharks and rays are cartilaginous fish that share several features like having no swim bladder and multiple rows of teeth. While sharks have streamlined bodies and tails that aid swimming, rays have flattened disk-like bodies and long tails. They differ in reproduction, with sharks being oviparous and rays being ovoviviparous. Both predators eat fish and invertebrates. However, they face many threats like bycatch and habitat destruction. Overfishing has led to one-quarter of shark and ray species being threatened according to the IUCN, and improved conservation efforts are needed to prevent extinction.
Report
Share
Report
Share
Recommended
Age and growth
At what age does a fish attain a maturity
What is the perfect catchable or mark able size of the fish
It helps to calculate the life span and longevity of fish
It enables to estimate and compare growth rates of fish in different waters.
Good or bad growth can point out the suitability for rearing and stocking purposes
The timing of spawning migration of given species can be worked out .
Marine Commercial Fin- fish and Shell-finsh Fisheries of India
Marine Commercial Fin- fish and Shell-finsh Fisheries of IndiaDr. Sudesh D. Rathod, B N Bandodkar College of Science
SYLLABUS
Unit I) Marine Fin Fish Fisheries of India –
i) Coastal fisheries (up to 45 fathoms) – Stromateus sinensis, Stromateus cinereus,Stromateus niger, Polynemus tetradactylus, Psuedosciaena diacanthus, Trichiurushaumela, Synagris 8aponicas, Scomber microlepeidotus, Cybium guttatum, Sardinellalongiceps.
ii) Deep sea fisheries (more than 45 fathoms) of Indian Exclusive Economic Zone –Thunnus albacore, Sarda orientalis, Rhincodon typus.iii) Commercial potential & major landing centres of the above fishes.
Unit II) Marine Shell Fish Fisheries of India –
iii) Crustacean fisheries – Penaeus monodon; etapenaeus affinis, Parapenaeopsisstylifera, Acetes indicus, Panulirus polyphagus, Scylla serrata.
iv) Molluscan fisheries – Pinctada vulgaris, Sepia pharaonis, Loligo duvaceli.iii) Commercial potential & major landing centres of the above shell fishes.Identification of Fish Species
To identify fish species, measurements, counts of anatomical features, and color patterns are used. Meristic traits involve counting scales, fins, spines, and soft rays. Morphometric traits involve measuring features like standard length, head length, and fin lengths relative to standard length. To identify an unknown fish, samples are collected and their meristic traits like scale counts and fin formulas are recorded, along with morphometric trait measurements, which are then compared to published identification standards.
Eggs and larvae identification biology in fin fish
Characters most useful in identification of fish eggs are the following: (1) egg shape-spherical, ellipsoidal, irregular, or oth- erwise; (2) egg size-fish eggs range in size from 0.5 to 26.0 mm; (3) oil globules-presence or-absence.
Identification of Fish Eggs - SWFSCswfsc.noaa.gov › publications
Search for: How can you tell a fish egg?
Inland fishery resources of world
This document provides an overview of inland fisheries resources around the world. It discusses the major inland fishing areas, types of inland fisheries, and freshwater zoo-geographic regions. Some key points include:
- India is the second largest producer of fish globally, with inland fisheries contributing over 6 million metric tonnes annually.
- Major inland fishing areas include lakes, reservoirs, rivers and flood plains across Southeast Asia, North America, Africa, and northern Asia.
- Inland fisheries include commercial, small-scale, and recreational activities utilizing a range of gear from nets to trawlers.
- Freshwater regions are divided into six zoo-geographic regions including the Nearctic, Neot
fish population dynamics, Population structure
Estimation of fish population dynamics are often based on age structures. Understanding past
population structure is of interest to evolutionary biologists because it can reveal when migration
regimes changed in natural populations, thereby pointing to potential environmental factors such as
climate changes as driving evolutionary forces. Characterizing the structure of extent populations is also
key to conservation genetics as translocation or reintroduction decisions must preserve evolutionary
stable units. Finally, population structure has important biomedical consequences either when a number
of subpopulation groups is locally adapted to particular environmental conditions (and maladapted
when exposed to new environments) or represents a confounding factor in the study of the statistical
association between genetic variants and phenotyp
age determination
Researchers determine the age of fish by counting growth rings on structures like scales, otoliths, vertebrae, and the operculum. The most common technique uses the sagittal otolith, as it records an annual cycle of opaque and translucent zones. Scales are also widely used due to their structure recording growth rates, while slices of vertebrae and the operculum examined under a microscope reveal rings that indicate age.
Coldwater fisheries ppt
The cold water fisheries deal with fisheries activity in water where temperature of water ranges from 5 to 25 degrees centigrade. The water temperature under cold water fisheries should not be more than 25°C even in summer. Such conditions in India occur in Himalayan and peninsular regions.
9 Finest Coldwater Aquarium Fish
Orangethroat Darter.
Three-Spined Stickleback.
Orange-Spotted Sunfish.
Diamond Sturgeon.
Siberian Sturgeon.
Sterlet.
Fathead Minnow.
Southern redbelly dace.
Tench.
Rosy Barb. Hailing from Afghanistan and Bangladesh, this little fish is tolerant of temperatures in …
Gold Barb. The gold bard, or Chinese barb, is an extremely popular cold-water fish. Any aquarium …
Two Spot Barb. This fish hails from Nepal, India, and Pakistan. The omnivorous two spot barb …
Bloodfin Tetra. Natives to Southern Brazil and Paraguay, both the standard bloodfin .
Coldwater fish in terms of the aquarium trade refers to any fish species that prefer cooler water temperatures. The optimal temperatures for these fish hover around the 68-degree mark, although each species’ temperature range may vary from the norm.
Recommended
Age and growth
At what age does a fish attain a maturity
What is the perfect catchable or mark able size of the fish
It helps to calculate the life span and longevity of fish
It enables to estimate and compare growth rates of fish in different waters.
Good or bad growth can point out the suitability for rearing and stocking purposes
The timing of spawning migration of given species can be worked out .
Marine Commercial Fin- fish and Shell-finsh Fisheries of India
Marine Commercial Fin- fish and Shell-finsh Fisheries of IndiaDr. Sudesh D. Rathod, B N Bandodkar College of Science
SYLLABUS
Unit I) Marine Fin Fish Fisheries of India –
i) Coastal fisheries (up to 45 fathoms) – Stromateus sinensis, Stromateus cinereus,Stromateus niger, Polynemus tetradactylus, Psuedosciaena diacanthus, Trichiurushaumela, Synagris 8aponicas, Scomber microlepeidotus, Cybium guttatum, Sardinellalongiceps.
ii) Deep sea fisheries (more than 45 fathoms) of Indian Exclusive Economic Zone –Thunnus albacore, Sarda orientalis, Rhincodon typus.iii) Commercial potential & major landing centres of the above fishes.
Unit II) Marine Shell Fish Fisheries of India –
iii) Crustacean fisheries – Penaeus monodon; etapenaeus affinis, Parapenaeopsisstylifera, Acetes indicus, Panulirus polyphagus, Scylla serrata.
iv) Molluscan fisheries – Pinctada vulgaris, Sepia pharaonis, Loligo duvaceli.iii) Commercial potential & major landing centres of the above shell fishes.Identification of Fish Species
To identify fish species, measurements, counts of anatomical features, and color patterns are used. Meristic traits involve counting scales, fins, spines, and soft rays. Morphometric traits involve measuring features like standard length, head length, and fin lengths relative to standard length. To identify an unknown fish, samples are collected and their meristic traits like scale counts and fin formulas are recorded, along with morphometric trait measurements, which are then compared to published identification standards.
Eggs and larvae identification biology in fin fish
Characters most useful in identification of fish eggs are the following: (1) egg shape-spherical, ellipsoidal, irregular, or oth- erwise; (2) egg size-fish eggs range in size from 0.5 to 26.0 mm; (3) oil globules-presence or-absence.
Identification of Fish Eggs - SWFSCswfsc.noaa.gov › publications
Search for: How can you tell a fish egg?
Inland fishery resources of world
This document provides an overview of inland fisheries resources around the world. It discusses the major inland fishing areas, types of inland fisheries, and freshwater zoo-geographic regions. Some key points include:
- India is the second largest producer of fish globally, with inland fisheries contributing over 6 million metric tonnes annually.
- Major inland fishing areas include lakes, reservoirs, rivers and flood plains across Southeast Asia, North America, Africa, and northern Asia.
- Inland fisheries include commercial, small-scale, and recreational activities utilizing a range of gear from nets to trawlers.
- Freshwater regions are divided into six zoo-geographic regions including the Nearctic, Neot
fish population dynamics, Population structure
Estimation of fish population dynamics are often based on age structures. Understanding past
population structure is of interest to evolutionary biologists because it can reveal when migration
regimes changed in natural populations, thereby pointing to potential environmental factors such as
climate changes as driving evolutionary forces. Characterizing the structure of extent populations is also
key to conservation genetics as translocation or reintroduction decisions must preserve evolutionary
stable units. Finally, population structure has important biomedical consequences either when a number
of subpopulation groups is locally adapted to particular environmental conditions (and maladapted
when exposed to new environments) or represents a confounding factor in the study of the statistical
association between genetic variants and phenotyp
age determination
Researchers determine the age of fish by counting growth rings on structures like scales, otoliths, vertebrae, and the operculum. The most common technique uses the sagittal otolith, as it records an annual cycle of opaque and translucent zones. Scales are also widely used due to their structure recording growth rates, while slices of vertebrae and the operculum examined under a microscope reveal rings that indicate age.
Coldwater fisheries ppt
The cold water fisheries deal with fisheries activity in water where temperature of water ranges from 5 to 25 degrees centigrade. The water temperature under cold water fisheries should not be more than 25°C even in summer. Such conditions in India occur in Himalayan and peninsular regions.
9 Finest Coldwater Aquarium Fish
Orangethroat Darter.
Three-Spined Stickleback.
Orange-Spotted Sunfish.
Diamond Sturgeon.
Siberian Sturgeon.
Sterlet.
Fathead Minnow.
Southern redbelly dace.
Tench.
Rosy Barb. Hailing from Afghanistan and Bangladesh, this little fish is tolerant of temperatures in …
Gold Barb. The gold bard, or Chinese barb, is an extremely popular cold-water fish. Any aquarium …
Two Spot Barb. This fish hails from Nepal, India, and Pakistan. The omnivorous two spot barb …
Bloodfin Tetra. Natives to Southern Brazil and Paraguay, both the standard bloodfin .
Coldwater fish in terms of the aquarium trade refers to any fish species that prefer cooler water temperatures. The optimal temperatures for these fish hover around the 68-degree mark, although each species’ temperature range may vary from the norm.
LAWS RELATED TO INLAND FISHERY
This document discusses laws related to inland fisheries in India. It covers topics such as leasing of open water bodies, culture-based fisheries, aquaculture regulations, land reforms acts, control of destructive fishing practices, and conservation efforts. Key points include preferential leasing of tanks to cooperatives and youth groups, costs associated with culture-based fisheries, inclusion of fish/shrimp farming as agricultural activities, and management of open access water bodies of different sizes.
Seine net
This document provides information about seine nets, which are rectangular nets used to surround and catch schools of fish. It describes the basic components of a seine net, including the netting material, ropes, floats, and sinkers. There are different types of seine nets categorized by their structure, including beach seines, lampara seines, Danish seines, and purse seines. Seine nets target both demersal and pelagic species and can be used in inland and marine waters.
Prospects and problems in marine Ornamental Aquaculture India
very lack of data of Marine ornamental fish sector. it will help for fisheries student to know about Prospects and problems in marine Ornamental Aquaculture India.
Reproductive biology
This document provides an overview of reproductive biology in fishes. It discusses the different types of sexuality observed in fishes, including unisexuality, bisexuality, hermaphroditism, and parthenogenesis. It describes the reproductive cycles and hormones that regulate reproduction for both male and female fish. Key aspects covered include the gonads, sexual dimorphism, seasonal breeding patterns, and hormonal control of the reproductive system through the CNS-pituitary-gonad axis.
Length weight relationship, condition factor & fecundity estimation of Mystus...
This presentation summarizes a thesis on the length weight relationship, condition factor, and fecundity estimation of Mystus Vittatus fish in Bangladesh. The objectives are to estimate monthly variations in length weight relationships and condition factors, and to identify peak breeding times through fecundity estimation. Over 700 fish samples were collected from various markets and measurements were taken for total length, standard length, weight, egg weight, and number. Statistical analyses found positive linear relationships between length and weight, and between fecundity and length, weight, and gonad weight. Fecundity was highest in larger fish and average fecundity was estimated at 32,142 eggs.
Coldwater fisheries in India
This document discusses cold water fisheries in India. It describes the temperature range for cold water fisheries (5-25°C) and notes that states like Kashmir, Himachal Pradesh, and Uttarakhand are well-suited for cold water fisheries. It identifies important cold water fish species in India like various types of mahseer and trout. Mahseer can grow up to 1.5 meters long and breed from July to September. Trout generally feed on other fish and aquatic invertebrates. Cold water fisheries provide income, employment, and food for local populations and have significant potential to contribute to India's fisheries sector and economy.
Fish Biodiversity and Conservation
What is biodiversity?
Father of biodiversity- E.O. Wilson.
The term ‘biodiversity’’ encompasses the variety of all life forms on earth.
Define biodiversity –
‘’ Biodiversity include of the particular area may be living organisms (plant and animal) called biodiversity ’’.
• Simple words in can be defined as the biodiversity .
“Variety, variability b/w genes, spp. and ecosystem”.
Define fish diversity –
“Fish Species diversity is defined as the number of species and abundance of each species that live in a particular location”.
The number of species that live in a particular location is called species richness.
India is one of the 17 mega biodiversity countries having four biodiversity hotspots namely the Western Ghats, eastern Himalayas, Indo-Burma and Sundaland that are included amongst the top ten most important hotspots in the world.
It also has rich freshwater(rivers, irrigationcanals,tanks, lakes,reservoirs) fish diversity.
Which living organisms–
All living organism in world 7.4 billion.
Fish Biodiversity in world-
World harbour total of 33059 spp. 4258 genera, 482 families about 58 % Marine water, 41% Fresh water and 1% migrants.
2-Fisheries resource of India –
India blessed with huge aquatic resources with 29,000 km of rivers, 0.3 million ha of estuaries, 0.9 million ha of back waters and lagoons, 3.15 million ha of reservoirs, 0.2 million ha of floodplain wetlands, 0.72 million ha of upland lakes and 2.02 million km sq area of Exclusive Economic Zone (EEZ) surrounding the seas,8129 km of coast line, which includes those of Andaman and Nicobar and Lakshadweep Islands.
The seas surrounding the country, 14 major rivers, 44 medium rivers and innumerable small rivers and other inland water bodies provide one of the richest faunastic resources of the world.
Pre-stocking management of nursery pond for IMC
Pre stocking management is one of the important method of entire three tire fish farming system. Because, fish mortality is very high at the stage of spawn. The stocking density of nursery pond is 2 lacks/ha.
In Nursery pond fish nursed very well to prevent fish mortality.
overview of cage culture ppt.
This document discusses cage aquaculture in India, specifically in Chhattisgarh state. It provides background on the history and evolution of cage culture, describes common cage designs and materials. Key points covered include common species cultured, stocking densities, benefits and risks. Statistics on cage culture in Chhattisgarh and other Indian states are also presented. The document concludes by stating that cage culture is a viable method for utilizing open reservoirs and providing employment opportunities.
Aquarium fish and Marine aquarium fish and Marine ornamental organisms
This document provides information on various freshwater aquarium fish species. It discusses their natural habitats, tank requirements, feeding, breeding behaviors, and other care details. Key fish mentioned include Cardinal Tetras, Black Widow Tetras, Neon Tetras, Hockey Stick Tetras, Piranhas, Rosy Barbs, Tiger Barbs, Zebra Danios, Goldfish, Koi Carp, Ghost Glass Cats, and Oscar Cichlids. The document is authored by Sameer G. Chebbi Ph.D from the Department of Zoology at Karnatak Science College, Dharwad.
Finfish breeding and hatchery management pdf
Rivers were the major source of freshwater fish seed in India during 1950’s and 1960’s.
Over the years, the riverine contribution has declined and at present forms only a supplementary source, constituting less than 5% of the country’s total fish seed production.
The Ganga, the Brahmaputra and the Indus river systems in the North and the Peninsular East coast and the West coast river systems in the South are the important natural sources of fish seed.
Anatomy of Finfish 2nd sem (full syllabus)
The document provides information on the external and internal anatomy of finfish. It discusses the ten body systems of fish and the three main classes of fish - Agnatha, Chondrichthyes, and Osteichthyes. It describes the external anatomy including common body forms, body covering, scales, and fins. It details the internal anatomy covering organs like the brain, esophagus, stomach, and more. It also discusses the structure, types, and arrangements of scales and fins in more detail.
TRAITS OF IMPORTANT CULTIVABLE FISH AND SHELLFISH & THEIR CULTURE METHODS
TRAITS OF IMPORTANT CULTIVABLE FISH AND SHELLFISH & THEIR CULTURE METHODSSHUBHAM PATIDAR FISHERIES ADDAA
This document discusses the traits and culture methods of important cultivable fish and shellfish in fresh water aquaculture. It covers carp species like Catla catla and Labeo rohita that are commonly farmed using methods like polyculture. Exotic carp species such as the silver carp are also discussed. Culture methods for catfish including Clarias batrachus are described. Finally, the giant freshwater prawn Macrobrachium rosenbergii is covered, noting its life cycle and that it can be cultured alone or with other species.Effect of environmental factors on fish egg and larvae ppt
Introduction
Marine oil spills can affect the ecosystem both through their physical influence on the organisms and through the effect of the various chemicals in the oil. On the physical side, organisms can get caught in the viscous oil. Oil can also form a barrier to the surface, which can be damaging for some species of fish when they come to the surface to fill the swim bladder (Sundby et al., 2013). There are also several chemicals in the oil that can increase the mortality for eggs and larvae (Neff et al., 2000; Barron et al., 2004). Oil can stimulate the formation of marine snow (Passow et al., 2012) that may subsequently sinks to the ocean floor where it can impact the benthic fauna. If conditions become anoxic, oil in the sediment would decay more slowly since the biological remineralization of the oil is retarded in anoxic conditions. The use of dispersants to increase the rate of remineralization has also received attention in terms of its potential negative effect on the ecosystem (Kleindienst et al., 2015; Vikebø et al., 2015).
This study focuses on the seas around southern Norway (Figure 1), where the currents are dominated by the Norwegian Coastal Current (NCC) that flows along the coast all the way from the Skagerrak to northern Norway. This current would primarily transport oil spills, eggs, and larvae along the coast. In the northern part of the area, the NCC flows side by side with the Norwegian Atlantic Current (NAC), which is a more saline current also directed northwards. Strong winds of variable directions and high waves occur frequently, particularly during winter, and contribute to the upper layer drift. The area has strong mesoscale activity, particularly in the frontal region between the fresher NCC and the eastern branch of the NAC, and thus it is difficult to predict the local currents on short time scales. The tidal amplitudes, and consequently the tidal currents, are small (<1.0 m) in the southern parts of Norway, but become larger in northern Norway.
Prevention of fish parasitic disease _Syekat
Prevention of fish parasitic disease _SyekatNazmul Haque Syekat, Noakhai Science & Technology University.
Fish diseases affect the survival and growth rates of fìsh under culture. Given that drug
treatments are expensive, fìsh diseases invariably lead to lower harvest and higher cost.
Fish farmers often suffer hefty economic losses due to fìsh diseases.To alleviate such losses,
it is crucial to take precautions to prevent fìsh diseases and reduce pathogen levels in water
bodies. It is also important to prevent water quality from deteriorating and to strengthen
the natural resistance of the fìsh stock. Regular monitoring of fìsh health is an effective way
to identify disease causes and appropriate treatments. One major cause of serious fìsh kill
is overlooking the contagiousness of fìsh diseases and thus delaying treatment. As such,
adequate care and treatment should be given to infected fish promptly.
,
Nazmul Haque Syekat
SyekatFish nutrition and feed technology 4th sem (full sylabus)
This document discusses fish nutrition and feed technology. It covers fundamentals of fish nutrition including the importance of proper nutrition for fish farming. Fish require proteins, lipids, carbohydrates, vitamins and minerals for healthy growth. Energy is also essential and is derived from dietary nutrients. The document outlines various forms of energy partitioning in fish and methods of energy metabolism. It discusses laws of thermodynamics and units of energy measurement. Feed formulation involves balancing protein, energy and amino acid levels. The steps in feed formulation include initial protein and energy balancing, checking indispensable amino acid levels, and consideration of additives.
Sport Fish in India.pptx
1. Introduction
2.Principal Game fishes
(a)Fresh water game fishes
(b) Estuarine and sea game fishes
3.Sport Fishing and Tourism
*Mahseer (Barbus Tor) fishing
*Trout fishing
*Sea fishing
THANK YOU!!
Viral diseases in crustaceans
Viral diseases pose a major threat to crustacean farming. This document summarizes several important viral diseases affecting farmed shrimp species. Yellow Head Disease, caused by Yellow Head Virus, causes mass mortalities in Penaeus monodon. White Spot Disease, caused by White Spot Syndrome Virus, infects juveniles of many shrimp species and can cause 80-100% mortality within a week. Taura Syndrome, caused by Taura Syndrome Virus, most severely affects Litopenaeus vannamei and is characterized by reddish discoloration and lesions. These and other viruses like Infectious Hypodermal and Hematopoietic Necrosis Virus, Baculoviral Midg
Digestive system of fish
The document discusses the digestive system of fish. It covers the main components and processes of the fish digestive system including the mouth, esophagus, stomach, pancreas, liver, intestines and anus. It describes the different feeding mechanisms used by fish such as filter feeding, ram feeding, suction feeding, and others. It also discusses the enzymes involved in digesting carbohydrates, proteins and lipids. In summary:
1) The digestive system of fish breaks down food through a series of organs from the mouth to the anus.
2) Fish use various feeding mechanisms to ingest food depending on their anatomy and food sources.
3) Digestion involves enzymes that break down carbohydrates,
Fish morphology powerpoint
The document discusses fish morphology and how the shapes of fishes and their body parts are adaptations to their environments and behaviors. It describes four main body shapes - fusiform for fast-swimming predators, compressiform for quick bursts of speed, depressiform for bottom-dwelling fish, and filiform for elongated fish. It also outlines different caudal fin shapes including homocercal and heterocercal, and provides examples of fish that exhibit each shape.
Fish Morphology
This document provides an overview of fish morphology and anatomy. It describes the basic body divisions of head, trunk, and tail. It then discusses various body shapes and tail types that influence how fish move and live. These include elongated, compressed, rounded, and forked tail shapes. It also covers scale types, mouth positions, coloration strategies for camouflage and defense, and schooling behavior. The goal is to understand how fish body forms relate to their environment and lifestyle.
Fish Morphology.pptx
1. Fish bodies are divided into head, trunk, and tail sections, though divisions may not always be visible externally. They are classified based on body parts, mouth location and size, tail shape, color, and adaptations.
2. Body shape indicates how a fish moves and lives, with categories including fusiform for fast swimmers, depressiform for bottom dwellers, and anguilliform for eel-like fish.
3. Fish have a variety of fin, scale, mouth, coloration, and reproductive adaptations that help with functions like swimming, defense from predators, and reproduction.
More Related Content
What's hot
LAWS RELATED TO INLAND FISHERY
This document discusses laws related to inland fisheries in India. It covers topics such as leasing of open water bodies, culture-based fisheries, aquaculture regulations, land reforms acts, control of destructive fishing practices, and conservation efforts. Key points include preferential leasing of tanks to cooperatives and youth groups, costs associated with culture-based fisheries, inclusion of fish/shrimp farming as agricultural activities, and management of open access water bodies of different sizes.
Seine net
This document provides information about seine nets, which are rectangular nets used to surround and catch schools of fish. It describes the basic components of a seine net, including the netting material, ropes, floats, and sinkers. There are different types of seine nets categorized by their structure, including beach seines, lampara seines, Danish seines, and purse seines. Seine nets target both demersal and pelagic species and can be used in inland and marine waters.
Prospects and problems in marine Ornamental Aquaculture India
very lack of data of Marine ornamental fish sector. it will help for fisheries student to know about Prospects and problems in marine Ornamental Aquaculture India.
Reproductive biology
This document provides an overview of reproductive biology in fishes. It discusses the different types of sexuality observed in fishes, including unisexuality, bisexuality, hermaphroditism, and parthenogenesis. It describes the reproductive cycles and hormones that regulate reproduction for both male and female fish. Key aspects covered include the gonads, sexual dimorphism, seasonal breeding patterns, and hormonal control of the reproductive system through the CNS-pituitary-gonad axis.
Length weight relationship, condition factor & fecundity estimation of Mystus...
This presentation summarizes a thesis on the length weight relationship, condition factor, and fecundity estimation of Mystus Vittatus fish in Bangladesh. The objectives are to estimate monthly variations in length weight relationships and condition factors, and to identify peak breeding times through fecundity estimation. Over 700 fish samples were collected from various markets and measurements were taken for total length, standard length, weight, egg weight, and number. Statistical analyses found positive linear relationships between length and weight, and between fecundity and length, weight, and gonad weight. Fecundity was highest in larger fish and average fecundity was estimated at 32,142 eggs.
Coldwater fisheries in India
This document discusses cold water fisheries in India. It describes the temperature range for cold water fisheries (5-25°C) and notes that states like Kashmir, Himachal Pradesh, and Uttarakhand are well-suited for cold water fisheries. It identifies important cold water fish species in India like various types of mahseer and trout. Mahseer can grow up to 1.5 meters long and breed from July to September. Trout generally feed on other fish and aquatic invertebrates. Cold water fisheries provide income, employment, and food for local populations and have significant potential to contribute to India's fisheries sector and economy.
Fish Biodiversity and Conservation
What is biodiversity?
Father of biodiversity- E.O. Wilson.
The term ‘biodiversity’’ encompasses the variety of all life forms on earth.
Define biodiversity –
‘’ Biodiversity include of the particular area may be living organisms (plant and animal) called biodiversity ’’.
• Simple words in can be defined as the biodiversity .
“Variety, variability b/w genes, spp. and ecosystem”.
Define fish diversity –
“Fish Species diversity is defined as the number of species and abundance of each species that live in a particular location”.
The number of species that live in a particular location is called species richness.
India is one of the 17 mega biodiversity countries having four biodiversity hotspots namely the Western Ghats, eastern Himalayas, Indo-Burma and Sundaland that are included amongst the top ten most important hotspots in the world.
It also has rich freshwater(rivers, irrigationcanals,tanks, lakes,reservoirs) fish diversity.
Which living organisms–
All living organism in world 7.4 billion.
Fish Biodiversity in world-
World harbour total of 33059 spp. 4258 genera, 482 families about 58 % Marine water, 41% Fresh water and 1% migrants.
2-Fisheries resource of India –
India blessed with huge aquatic resources with 29,000 km of rivers, 0.3 million ha of estuaries, 0.9 million ha of back waters and lagoons, 3.15 million ha of reservoirs, 0.2 million ha of floodplain wetlands, 0.72 million ha of upland lakes and 2.02 million km sq area of Exclusive Economic Zone (EEZ) surrounding the seas,8129 km of coast line, which includes those of Andaman and Nicobar and Lakshadweep Islands.
The seas surrounding the country, 14 major rivers, 44 medium rivers and innumerable small rivers and other inland water bodies provide one of the richest faunastic resources of the world.
Pre-stocking management of nursery pond for IMC
Pre stocking management is one of the important method of entire three tire fish farming system. Because, fish mortality is very high at the stage of spawn. The stocking density of nursery pond is 2 lacks/ha.
In Nursery pond fish nursed very well to prevent fish mortality.
overview of cage culture ppt.
This document discusses cage aquaculture in India, specifically in Chhattisgarh state. It provides background on the history and evolution of cage culture, describes common cage designs and materials. Key points covered include common species cultured, stocking densities, benefits and risks. Statistics on cage culture in Chhattisgarh and other Indian states are also presented. The document concludes by stating that cage culture is a viable method for utilizing open reservoirs and providing employment opportunities.
Aquarium fish and Marine aquarium fish and Marine ornamental organisms
This document provides information on various freshwater aquarium fish species. It discusses their natural habitats, tank requirements, feeding, breeding behaviors, and other care details. Key fish mentioned include Cardinal Tetras, Black Widow Tetras, Neon Tetras, Hockey Stick Tetras, Piranhas, Rosy Barbs, Tiger Barbs, Zebra Danios, Goldfish, Koi Carp, Ghost Glass Cats, and Oscar Cichlids. The document is authored by Sameer G. Chebbi Ph.D from the Department of Zoology at Karnatak Science College, Dharwad.
Finfish breeding and hatchery management pdf
Rivers were the major source of freshwater fish seed in India during 1950’s and 1960’s.
Over the years, the riverine contribution has declined and at present forms only a supplementary source, constituting less than 5% of the country’s total fish seed production.
The Ganga, the Brahmaputra and the Indus river systems in the North and the Peninsular East coast and the West coast river systems in the South are the important natural sources of fish seed.
Anatomy of Finfish 2nd sem (full syllabus)
The document provides information on the external and internal anatomy of finfish. It discusses the ten body systems of fish and the three main classes of fish - Agnatha, Chondrichthyes, and Osteichthyes. It describes the external anatomy including common body forms, body covering, scales, and fins. It details the internal anatomy covering organs like the brain, esophagus, stomach, and more. It also discusses the structure, types, and arrangements of scales and fins in more detail.
TRAITS OF IMPORTANT CULTIVABLE FISH AND SHELLFISH & THEIR CULTURE METHODS
TRAITS OF IMPORTANT CULTIVABLE FISH AND SHELLFISH & THEIR CULTURE METHODSSHUBHAM PATIDAR FISHERIES ADDAA
This document discusses the traits and culture methods of important cultivable fish and shellfish in fresh water aquaculture. It covers carp species like Catla catla and Labeo rohita that are commonly farmed using methods like polyculture. Exotic carp species such as the silver carp are also discussed. Culture methods for catfish including Clarias batrachus are described. Finally, the giant freshwater prawn Macrobrachium rosenbergii is covered, noting its life cycle and that it can be cultured alone or with other species.Effect of environmental factors on fish egg and larvae ppt
Introduction
Marine oil spills can affect the ecosystem both through their physical influence on the organisms and through the effect of the various chemicals in the oil. On the physical side, organisms can get caught in the viscous oil. Oil can also form a barrier to the surface, which can be damaging for some species of fish when they come to the surface to fill the swim bladder (Sundby et al., 2013). There are also several chemicals in the oil that can increase the mortality for eggs and larvae (Neff et al., 2000; Barron et al., 2004). Oil can stimulate the formation of marine snow (Passow et al., 2012) that may subsequently sinks to the ocean floor where it can impact the benthic fauna. If conditions become anoxic, oil in the sediment would decay more slowly since the biological remineralization of the oil is retarded in anoxic conditions. The use of dispersants to increase the rate of remineralization has also received attention in terms of its potential negative effect on the ecosystem (Kleindienst et al., 2015; Vikebø et al., 2015).
This study focuses on the seas around southern Norway (Figure 1), where the currents are dominated by the Norwegian Coastal Current (NCC) that flows along the coast all the way from the Skagerrak to northern Norway. This current would primarily transport oil spills, eggs, and larvae along the coast. In the northern part of the area, the NCC flows side by side with the Norwegian Atlantic Current (NAC), which is a more saline current also directed northwards. Strong winds of variable directions and high waves occur frequently, particularly during winter, and contribute to the upper layer drift. The area has strong mesoscale activity, particularly in the frontal region between the fresher NCC and the eastern branch of the NAC, and thus it is difficult to predict the local currents on short time scales. The tidal amplitudes, and consequently the tidal currents, are small (<1.0 m) in the southern parts of Norway, but become larger in northern Norway.
Prevention of fish parasitic disease _Syekat
Prevention of fish parasitic disease _SyekatNazmul Haque Syekat, Noakhai Science & Technology University.
Fish diseases affect the survival and growth rates of fìsh under culture. Given that drug
treatments are expensive, fìsh diseases invariably lead to lower harvest and higher cost.
Fish farmers often suffer hefty economic losses due to fìsh diseases.To alleviate such losses,
it is crucial to take precautions to prevent fìsh diseases and reduce pathogen levels in water
bodies. It is also important to prevent water quality from deteriorating and to strengthen
the natural resistance of the fìsh stock. Regular monitoring of fìsh health is an effective way
to identify disease causes and appropriate treatments. One major cause of serious fìsh kill
is overlooking the contagiousness of fìsh diseases and thus delaying treatment. As such,
adequate care and treatment should be given to infected fish promptly.
,
Nazmul Haque Syekat
SyekatFish nutrition and feed technology 4th sem (full sylabus)
This document discusses fish nutrition and feed technology. It covers fundamentals of fish nutrition including the importance of proper nutrition for fish farming. Fish require proteins, lipids, carbohydrates, vitamins and minerals for healthy growth. Energy is also essential and is derived from dietary nutrients. The document outlines various forms of energy partitioning in fish and methods of energy metabolism. It discusses laws of thermodynamics and units of energy measurement. Feed formulation involves balancing protein, energy and amino acid levels. The steps in feed formulation include initial protein and energy balancing, checking indispensable amino acid levels, and consideration of additives.
Sport Fish in India.pptx
1. Introduction
2.Principal Game fishes
(a)Fresh water game fishes
(b) Estuarine and sea game fishes
3.Sport Fishing and Tourism
*Mahseer (Barbus Tor) fishing
*Trout fishing
*Sea fishing
THANK YOU!!
Viral diseases in crustaceans
Viral diseases pose a major threat to crustacean farming. This document summarizes several important viral diseases affecting farmed shrimp species. Yellow Head Disease, caused by Yellow Head Virus, causes mass mortalities in Penaeus monodon. White Spot Disease, caused by White Spot Syndrome Virus, infects juveniles of many shrimp species and can cause 80-100% mortality within a week. Taura Syndrome, caused by Taura Syndrome Virus, most severely affects Litopenaeus vannamei and is characterized by reddish discoloration and lesions. These and other viruses like Infectious Hypodermal and Hematopoietic Necrosis Virus, Baculoviral Midg
Digestive system of fish
The document discusses the digestive system of fish. It covers the main components and processes of the fish digestive system including the mouth, esophagus, stomach, pancreas, liver, intestines and anus. It describes the different feeding mechanisms used by fish such as filter feeding, ram feeding, suction feeding, and others. It also discusses the enzymes involved in digesting carbohydrates, proteins and lipids. In summary:
1) The digestive system of fish breaks down food through a series of organs from the mouth to the anus.
2) Fish use various feeding mechanisms to ingest food depending on their anatomy and food sources.
3) Digestion involves enzymes that break down carbohydrates,
Fish morphology powerpoint
The document discusses fish morphology and how the shapes of fishes and their body parts are adaptations to their environments and behaviors. It describes four main body shapes - fusiform for fast-swimming predators, compressiform for quick bursts of speed, depressiform for bottom-dwelling fish, and filiform for elongated fish. It also outlines different caudal fin shapes including homocercal and heterocercal, and provides examples of fish that exhibit each shape.
What's hot (20)
Prospects and problems in marine Ornamental Aquaculture India
Prospects and problems in marine Ornamental Aquaculture India
Length weight relationship, condition factor & fecundity estimation of Mystus...
Length weight relationship, condition factor & fecundity estimation of Mystus...
Aquarium fish and Marine aquarium fish and Marine ornamental organisms
Aquarium fish and Marine aquarium fish and Marine ornamental organisms
TRAITS OF IMPORTANT CULTIVABLE FISH AND SHELLFISH & THEIR CULTURE METHODS
TRAITS OF IMPORTANT CULTIVABLE FISH AND SHELLFISH & THEIR CULTURE METHODS
Effect of environmental factors on fish egg and larvae ppt
Effect of environmental factors on fish egg and larvae ppt
Fish nutrition and feed technology 4th sem (full sylabus)
Fish nutrition and feed technology 4th sem (full sylabus)
Similar to Shark and rays
Fish Morphology
This document provides an overview of fish morphology and anatomy. It describes the basic body divisions of head, trunk, and tail. It then discusses various body shapes and tail types that influence how fish move and live. These include elongated, compressed, rounded, and forked tail shapes. It also covers scale types, mouth positions, coloration strategies for camouflage and defense, and schooling behavior. The goal is to understand how fish body forms relate to their environment and lifestyle.
Fish Morphology.pptx
1. Fish bodies are divided into head, trunk, and tail sections, though divisions may not always be visible externally. They are classified based on body parts, mouth location and size, tail shape, color, and adaptations.
2. Body shape indicates how a fish moves and lives, with categories including fusiform for fast swimmers, depressiform for bottom dwellers, and anguilliform for eel-like fish.
3. Fish have a variety of fin, scale, mouth, coloration, and reproductive adaptations that help with functions like swimming, defense from predators, and reproduction.
Fish morphology
1. Fish morphology plays a key role in identifying a fish's habitat and niche. The document discusses different aspects of fish morphology including body shape, fins, scales, mouth shape, and more.
2. Body shape indicates how a fish moves and where it lives, such as flat bodies for bottom dwellers and streamlined bodies for open water swimmers. Fin type also relates to locomotion and behavior.
3. Scale type reflects fish evolution, ranging from armor-like ganoid to tooth-like placoid scales. Mouth position is adapted for feeding strategies such as grazing or bottom-feeding.
fish
Fish are aquatic vertebrates that breathe through gills, have fins, lay eggs, and have scales covering their skin. There are two main types of fish: cartilaginous fish like sharks and rays whose skeletons are made of cartilage; and bony fish like salmon and carp whose skeletons are made of bone. Bony fish make up the largest group and can live in both saltwater and freshwater environments. All fish are aquatic vertebrates that use gills to breathe and fins to swim.
Marine Mammals
Marine mammals include cetaceans, sirenians, and carnivores that rely on the ocean for existence. They are warm-blooded, breathe air, bear live young, and nurse with milk. Cetaceans include whales, dolphins, and porpoises that communicate and echolocate. Sirenians such as manatees and dugongs graze on aquatic plants. Carnivores include three families of pinnipeds (seals, sea lions, walrus), polar bears, and two families of otters. Physiological adaptations allow marine mammals to dive, thermoregulate, and locomote in water. Many species face threats and some are endangered.
Killer Whale.pptx
This document provides a scientific classification and overview of the physical characteristics, diet, habitat, behavior, life cycle, and conservation status of the killer whale (Orcinus orca). It classifies killer whales scientifically and describes their size, coloration, fins, teeth, skin, and blubber. It also summarizes their predatory diet, global habitat and distribution, migration patterns linked to prey, sexual maturity reaching 7-17 years old, and listing as protected on international agreements.
Fins and locomotion in fishes by Iram Bee M.Sc. II Year.pptx
Fins are key anatomical features of fish that aid in locomotion and other functions. The document discusses the various types of fins found in fish and their purposes. It outlines that fins help with swimming through undulation and thrust generation. Pectoral fins can aid flying fish in gliding and various fins are modified for other functions like reproduction and defense. Fins work with different swimming styles like anguilliform to propel fish through the water.
INTRO ICHTHYOLOGY 304.ppt
The document discusses different types of fish tails and their functions. It describes five main tail types: truncated, forked, round, emarginate, and lunate or crescent shaped. Truncated tails are good for maneuverability at short bursts of speed. Forked tails provide maneuverability and speed over longer distances with less drag. Round tails create drag but allow for effective maneuvering. Emarginate tails provide effective acceleration and maneuvering with less drag than round tails. Lunate or crescent tails allow for great speed over long distances in open ocean fish like swordfish and marlin. The shape of a fish's tail indicates how it moves and lives.
Pisces classication ppt
General fish classification:- bony fishes and cartilaginous fishes.
Character of bony fishes and cartilaginous fishes...
Zoologydiversity
The document summarizes the animal diversity found on Saint Martin Island in Bangladesh. It discusses 18 different species representing 4 phyla: Chordata, Arthropoda, Mollusca, and Chordata. For each species, it provides the scientific classification and 2-6 brief characteristics. The species described include fish (e.g. Rupchanda, Shurma, Loitta), birds (e.g. seagull), reptiles (e.g. turtle), amphibians (e.g. frog), and mammals (e.g. dogfish, ray fish). The document aims to catalog the variety of wildlife that inhabits Saint Martin Island.
Pisces general characters and classification - copy
This document provides information on the general characteristics of fishes. It discusses:
1) Fishes are cold-blooded aquatic vertebrates that first evolved in the Silurian period and increased in number during the Devonian period.
2) They have a streamlined body with scales or plates, paired and unpaired fins, breathe through gills, and vary greatly in size.
3) Fishes are classified into three classes - Placodermi, Elasmobranchii, and Osteichthyes - based on their skeleton composition and other features.
Mako shark
The short fin mako shark is known for its incredible speed which can reach up to 32 kilometers per hour. Greatly valued by fishermen the mako are famous for their ability to jump and even have been known cases that have jumped into fishing boats and red some fisherman to be hooked . Because swimming speed are able to pursue fish that are too fast for other predators such as tuna, sword fish species and even other sharks. His taste for fish with peaks often gets them in trouble, many sharks caught of this species show wounds inflicted by swordfish. Because of its power and aggression are seen as dangerous to humans and have been5/9 reported several fatal attacks.
Biology of coral,beauty of sea.
Coral are marine invertebrates that live in colonies made of many individual polyps. Each polyp has a mouth and ring of tentacles surrounded by calcium carbonate exoskeleton. Most reef-building corals have a symbiotic relationship with algae called zooxanthellae that live inside their cells and provide nutrients through photosynthesis. Corals can reproduce both sexually through broadcast spawning or brooding, and asexually through budding or dividing to form new polyps. The calcium carbonate skeletons of corals are the basis for coral reefs, which are diverse ecosystems home to thousands of species.
Fish
Fish are the gill-bearing aquatic craniate animals that lack limbs with digits. They form a sister group to the tunicates, together forming the olfactores. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups.
Anatomy of External Organs of the Fishes
This document provides an overview of fish anatomy. It begins by stating that fish are cold-blooded vertebrates that breathe through gills and move using fins, with over 30,000 species ranging greatly in size. The body is then divided into three main regions: the head, trunk, and tail. Key external features of the head are described, including the mouth, eyes, nostrils, scales and fins. The trunk contains organs and features like the lateral line and openings for gills, fins, anus and urogenital areas. Finally, the tail region ends at the anus and contains the caudal fin, which can vary in shape between species. Common scale types and their distribution patterns are also outlined.
Coral reefs and atolls
Coral reefs are very unique, shallow marine geological formations. Over 150 million square kilometers area of the Earth is covered by excellent coral reefs. The largest coral reef is the Great Barrier Reef, located off the eastern coast of Australia. It stretches for more than 1500 Km. Some coral reefs are thousands of meters in thickness. Coral reef zones are the pleasant home to thousands of marine plants and animals. Corals themselves are good treasure houses with precious resources. Pirates used to hide their treasures in the sheltered coves of the coral reefs, in some places. The corals were first seen during 1815- by a naturalist. The name " bioherm " was given to the corals and coral reefs, initially, by William Thornbury. In this lesson, let us learn about the Corals, their origin, growth, types of Coral reefs and their distribution.
Mollusks
Mollusks are a large phylum of invertebrate animals that first appeared during the Cambrian period. They have soft bodies that are usually protected by an external calcium carbonate shell. Their bodies have three main zones - a head-foot, visceral mass, and mantle. There are several major classes of mollusks including bivalves like clams and mussels, cephalopods like squid and octopuses, gastropods like snails, and others. Mollusks play important roles in ecosystems as prey for other animals or by filtering water. They also have commercial and medical significance for humans.
MARINE FISHES [Autosaved].pptx
1. The document discusses three types of marine fishes: jawless fish (hagfish and lampreys), cartilaginous fish (sharks, skates, rays, and chimaeras), and bony fish.
2. Hagfish feed by grabbing prey with tooth-like plates and drawing it into their mouth, while lampreys use plates to grasp, rasp, and suck fluids from victims.
3. Cartilaginous fishes have skeletons of cartilage, placoid scales, and rows of teeth on their jaws. Sharks are excellent swimmers but must keep moving to avoid sinking, while skates and rays have flattened bodies and enlarged pectoral fins adapted for bottom feeding.
Liam 2
Sharks are a type of fish with cartilaginous skeletons and streamlined bodies. They have several rows of replaceable teeth and range widely in size. Sharks have keen senses of smell and can detect very small amounts of chemicals in water. While their eyes are similar to other vertebrates, sharks have adaptations that allow them to see well in dark ocean waters. It is unclear exactly how sharks sleep but some evidence suggests they may sleep with half their brain at a time.
Bahamas sharks
This document provides information on 9 different shark species commonly found in the Bahamas through a series of paragraphs with headings identifying each shark. It discusses the key identifying features, behaviors, habitats, and other details about great hammerhead sharks, tiger sharks, Caribbean reef sharks, bull sharks, nurse sharks, lemon sharks, black tip reef sharks, oceanic white tip sharks, and silky sharks.
Similar to Shark and rays (20)
Fins and locomotion in fishes by Iram Bee M.Sc. II Year.pptx
Fins and locomotion in fishes by Iram Bee M.Sc. II Year.pptx
Pisces general characters and classification - copy
Pisces general characters and classification - copy
Recently uploaded
The Diamonds of 2023-2024 in the IGRA collection
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)Academy of Science of South Africa
A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.How to Fix the Import Error in the Odoo 17
An import error occurs when a program fails to import a module or library, disrupting its execution. In languages like Python, this issue arises when the specified module cannot be found or accessed, hindering the program's functionality. Resolving import errors is crucial for maintaining smooth software operation and uninterrupted development processes.
How to Manage Your Lost Opportunities in Odoo 17 CRM
Odoo 17 CRM allows us to track why we lose sales opportunities with "Lost Reasons." This helps analyze our sales process and identify areas for improvement. Here's how to configure lost reasons in Odoo 17 CRM
Main Java[All of the Base Concepts}.docx
This is part 1 of my Java Learning Journey. This Contains Custom methods, classes, constructors, packages, multithreading , try- catch block, finally block and more.
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Dr. Vinod Kumar Kanvaria
Exploiting Artificial Intelligence for Empowering Researchers and Faculty,
International FDP on Fundamentals of Research in Social Sciences
at Integral University, Lucknow, 06.06.2024
By Dr. Vinod Kumar KanvariaPollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...National Information Standards Organization (NISO)
This presentation was provided by Steph Pollock of The American Psychological Association’s Journals Program, and Damita Snow, of The American Society of Civil Engineers (ASCE), for the initial session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session One: 'Setting Expectations: a DEIA Primer,' was held June 6, 2024.RPMS TEMPLATE FOR SCHOOL YEAR 2023-2024 FOR TEACHER 1 TO TEACHER 3
RPMS Template 2023-2024 by: Irene S. Rueco
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective UpskillingExcellence Foundation for South Sudan
Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.Executive Directors Chat Leveraging AI for Diversity, Equity, and Inclusion
Let’s explore the intersection of technology and equity in the final session of our DEI series. Discover how AI tools, like ChatGPT, can be used to support and enhance your nonprofit's DEI initiatives. Participants will gain insights into practical AI applications and get tips for leveraging technology to advance their DEI goals.
Digital Artifact 1 - 10VCD Environments Unit
Digital Artifact 1 - 10VCD Environments Unit - NGV Pavilion Concept Design
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
Certified as an ISO/IEC 27001: Information Security Management Systems (ISMS) Lead Implementer, Data Protection Officer, and Cyber Risks Analyst, Denis brings a heightened focus on data security, privacy, and cyber resilience to every endeavor.
His expertise extends across a diverse spectrum of reporting, database, and web development applications, underpinned by an exceptional grasp of data storage and virtualization technologies. His proficiency in application testing, database administration, and data cleansing ensures seamless execution of complex projects.
What sets Denis apart is his comprehensive understanding of Business and Systems Analysis technologies, honed through involvement in all phases of the Software Development Lifecycle (SDLC). From meticulous requirements gathering to precise analysis, innovative design, rigorous development, thorough testing, and successful implementation, he has consistently delivered exceptional results.
Throughout his career, he has taken on multifaceted roles, from leading technical project management teams to owning solutions that drive operational excellence. His conscientious and proactive approach is unwavering, whether he is working independently or collaboratively within a team. His ability to connect with colleagues on a personal level underscores his commitment to fostering a harmonious and productive workplace environment.
Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
-------------------------------------------------------------------------------
Find out more about ISO training and certification services
Training: ISO/IEC 27001 Information Security Management System - EN | PECB
ISO/IEC 42001 Artificial Intelligence Management System - EN | PECB
General Data Protection Regulation (GDPR) - Training Courses - EN | PECB
Webinars: https://pecb.com/webinars
Article: https://pecb.com/article
-------------------------------------------------------------------------------
For more information about PECB:
Website: https://pecb.com/
LinkedIn: https://www.linkedin.com/company/pecb/
Facebook: https://www.facebook.com/PECBInternational/
Slideshare: http://www.slideshare.net/PECBCERTIFICATION
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...Nguyen Thanh Tu Collection
https://app.box.com/s/y977uz6bpd3af4qsebv7r9b7s21935vdHow to Add Chatter in the odoo 17 ERP Module
In Odoo, the chatter is like a chat tool that helps you work together on records. You can leave notes and track things, making it easier to talk with your team and partners. Inside chatter, all communication history, activity, and changes will be displayed.
Top five deadliest dog breeds in America
Thinking of getting a dog? Be aware that breeds like Pit Bulls, Rottweilers, and German Shepherds can be loyal and dangerous. Proper training and socialization are crucial to preventing aggressive behaviors. Ensure safety by understanding their needs and always supervising interactions. Stay safe, and enjoy your furry friends!
Recently uploaded (20)
South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)
How to Manage Your Lost Opportunities in Odoo 17 CRM
How to Manage Your Lost Opportunities in Odoo 17 CRM
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
RPMS TEMPLATE FOR SCHOOL YEAR 2023-2024 FOR TEACHER 1 TO TEACHER 3
RPMS TEMPLATE FOR SCHOOL YEAR 2023-2024 FOR TEACHER 1 TO TEACHER 3
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Executive Directors Chat Leveraging AI for Diversity, Equity, and Inclusion
Executive Directors Chat Leveraging AI for Diversity, Equity, and Inclusion
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
Shark and rays
- 1. A PRESENTATION ON SHARK AND RAYS PRESENTED BY- Md. Nazmul Islam 1
- 2. Shark and Rays: The special types of fish which are cartilaginous that means their skeleton are made of cartilage. Common Features: No swim bladder. Rigid dorsal fin. Small placoid scales. Teeth's are in several series. Five to Seven pairs of gill slits. 2
- 3. Differences Between- Shark Ray 1.Most sharks have streamlined body. 1. flattened, disk like body. 2.The tail of shark is small. 2.The tail of rays is generally long. 3.Swim by creating a wave and starts at head then ripples down rest of body. 3.Swim by moving fins up and down. 4.Oviparous. 4.Ovoviviparous. 5.Example:Hammerhead shark. 5.Manta rays. 3
- 4. Distribution: Tropical and temperate seas, as well as some cold and polar seas and freshwater lakes. Habitat: shark-Usually found in pelagic surface. Rays-Usually found in demersal areas. https://www.google.com/search?rlz=1C1CHZL_enBD809BD809&biw=1350& bih=640&tbm=isch&sa=1&ei=8f65W6q_H8f- vgSo5JqgAg&q=shark+and+rays&oq=l=img.3..35i39k1l2j0.1650940.166042 9.0.1660972.43.22.0.0.0.0.304.2981.0j16j1j1.18shark+and+rays&gs_.0....0... 1c.1.64.img..28.14.2155.0..0i67k1.0.BGBv353TFqY#imgrc=PwWDgpKVVX5 6bM: 4
- 5. Diet: Shark-They can eat fish,crustaceans,mollusks, plankton, marine mammals, krill and other sharks. Rays- They can eat bundles of sea worms , shrimp and clam, eat soft shelled animals. https://www.google.com/search?rlz=1C1CHZL_enBD809B D809&biw=1350&bih=640&tbm=isch&sa=1&ei=eAW6W9 CKNsyy9QO32bugAg&q=diet+of+shark+and+rays&oq=die t+of+shark+and+rays&gs_l=img.12..35i39k1.272612.2762 43.0.278387.8.8.0.0.0.0.170.1147.0j8.8.0....0...1c.1.64.img ..0.2.324...0i8i7i30k1.0.eHaEm- w0Dm4#imgrc=Qw5uZyIjpc2rhM: https://www.google.com/search?rlz=1C1CHZL_enBD809BD809&biw=1350 &bih=640&tbm=isch&sa=1&ei=eAW6W9CKNsyy9QO32bugAg&q=diet+of+ shark+and+rays&oq=diet+of+shark+and+rays&gs_l=img.12..35i39k1.2726 12.276243.0.278387.8.8.0.0.0.0.170.1147.0j8.8.0....0...1c.1.64.img..0.2.32 4...0i8i7i30k1.0.eHaEm-w0Dm4#imgrc=C8-OPFoZz5MReM: 5
- 6. Reproduction: Claspers are modified inner edges of the pelvic fins of male shark and rays. https://www.google.com/search?rlz=1C1CHZL_enBD809BD809&biw=1350&bih=640&tbm=isch&sa=1&ei=kAa6W- TnH4eFvQSKq4wg&q=clasper+organ+of+male+shark&oq=clasper+organ+of+male+shark&gs_l=img.3...469090.487187.0. 487781.49.31.0.3.3.0.304.4460.0j15j7j1.23.0....0...1c.1.64.img..24.14.2039.0..0j35i39k1j0i67k1j0i5i30k1j0i8i30k1j0i24k1.0. W11GNtgSLiQ#imgdii=-XeDP0M2txuPZM:&imgrc=nTfTb8X2exvxtM: 6
- 7. Regulating the quality and health of other species of fish and invertebrates that helps to keep the ecosystem balance. https://www.google.com/search?rlz=1C1CHZL_enBD809BD809&biw=1350 &bih=640&tbm=isch&sa=1&ei=8f65W6q_H8f- vgSo5JqgAg&q=shark+and+rays&oq=shark+and+rays&gs_l=img.3..35i39k 1l2j0.1650940.1660429.0.1660972.43.22.0.0.0.0.304.2981.0j16j1j1.18.0.... 0...1c.1.64.img..28.14.2155.0..0i67k1.0.BGBv353TFqY#imgrc=8TbrCYweu 6MsgM: Economically:Fishing,tourism,Herbal medicine ,food. Importance: 7
- 8. By –catch. Habitat destruction. Climate Change. Marine debris. Unregulated tourism. Threats: https://www.google.com/search?rlz=1C1CHZL_enBD809BD809&biw=1350 &bih=591&tbm=isch&sa=1&ei=rwu6W- f3G8TXvgT4_L7IAQ&q=threats+of+shark+by+nets&oq=threats+of+shark+ by+nets&gs_l=img.3...159437.175333.0.175928.15.11.0.0.0.0.297.2183.0j 1j8.9.0....0...1c.1.64.img..6.1.272...35i39k1.0.EFytTYdLqoM#imgrc=npMP_ IS9IoY2VM: https://www.google.com/search?rlz=1C1CHZL_enBD809BD809&biw=1 350&bih=591&tbm=isch&sa=1&ei=Cw26W- auMZOOvQTj8ZKQBg&q=threats+of+ray&oq=threats+of+ray&gs_l=im g.3..35i39k1l2.37622.41391.0.42820.23.10.0.0.0.0.337.1296.0j1j3j1.5.0 ....0...1c.1.64.img..19.3.869...0i24k1.0.SoxSa- NIo1U#imgrc=8xogbvsHBpEv4M: 8
- 9. Improved management is needed to avoid extinction and promote population recovery. Overall chondrichthyan extinction risk is substantially higher than for most other vertebrates. One –quarter are threatened according to IUCN Red list criteria due to Overfishing Conservation Status: 9