This document summarizes shell fisheries and shrimp aquaculture. It discusses the major species of farmed freshwater prawns and marine shrimp, including their biology and life cycles. The document also describes the methods for farming both freshwater prawns and marine shrimp, from hatchery production of postlarvae to pond preparation and management, feeding, and harvesting. Key points covered include the different culture intensities (extensive, semi-intensive, intensive), yields, and the major producers and consumers of farmed shrimp globally.
Many farmers have been unable to successfully breed African Catfish.Several attempts made have given unfruitful results. In this guide, Lanre Ogunsina lists his own simple 19 proven steps to efficiently breed the African Catfish.
Due to the difficulties of getting consistent, fast growing, disease resistant and uniform sized catfish fingerlings and juveniles, the African Catfish Hatchery came into existence.
In the African Catfish Hatchery, catfish fry ‘come out’ from eggs under an artificial condition in commercial numbers. These fry grow into fingerlings and they later become juveniles.
Hill areas offer good scope for the development- of fisheries—both for commercial and sport purposes.
The coldwater fishery resources in India comprise high and mid-altitude lakes, rivers, streams, their tributaries and reservoirs dammed across such rivers.
The importance of coldwater fisheries lies in their unique biodiversity, valuable germplasm and maintenance of environmental quality in hills.
Coldwater fishes breed naturally but since some species have been listed as endangered, therefore artificial breeding is now being practiced to restore the diversity.
Pre-stocking management of nursery pond for IMCKartik Mondal
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.
This slide is about a pearl spot fish which includes about its habit, habitat ,morphology, food and feeding, breeding behaviour, hatching, larval rearing, embryonic development, nutritive values, farming practices, seed production and pond preparation...
Many farmers have been unable to successfully breed African Catfish.Several attempts made have given unfruitful results. In this guide, Lanre Ogunsina lists his own simple 19 proven steps to efficiently breed the African Catfish.
Due to the difficulties of getting consistent, fast growing, disease resistant and uniform sized catfish fingerlings and juveniles, the African Catfish Hatchery came into existence.
In the African Catfish Hatchery, catfish fry ‘come out’ from eggs under an artificial condition in commercial numbers. These fry grow into fingerlings and they later become juveniles.
Hill areas offer good scope for the development- of fisheries—both for commercial and sport purposes.
The coldwater fishery resources in India comprise high and mid-altitude lakes, rivers, streams, their tributaries and reservoirs dammed across such rivers.
The importance of coldwater fisheries lies in their unique biodiversity, valuable germplasm and maintenance of environmental quality in hills.
Coldwater fishes breed naturally but since some species have been listed as endangered, therefore artificial breeding is now being practiced to restore the diversity.
Pre-stocking management of nursery pond for IMCKartik Mondal
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.
This slide is about a pearl spot fish which includes about its habit, habitat ,morphology, food and feeding, breeding behaviour, hatching, larval rearing, embryonic development, nutritive values, farming practices, seed production and pond preparation...
Seed production and breeding of pearl Oyster &.pptxAbhayBamaniya2
so this presentation includes breeding and seed production of both edible and pearl oyster, which are basically same in a way. note that this does not includes pearl formation in the pearl oyster but after reading this presentation you might learn how to the culture the oyster. good luck! and have fun.
Groupers belongs to the family Serranidae.
⚫ Groupers are classified in 14 genera of the subfamily Epinephelinae, which comprises at least half the approximately 449 species in the family Serranidae.
⚫ Several grouper species have been raised on a commercial scale, but mostly by growing out captured wild juveniles.
Modern developments in transport technology are from two levels; one is from an understanding of internal physiological mechanisms of the fish and the optimal requirements, ensuring maximum survival of fish under transport and the other is from a study of the environmental parameters of the medium in which fish are transported. Under anaesthesia fish can be transported without water even, provided the skin and gills are kept moist under low temperature. The cryopreservation of fish sperm for use at any convenient time can be referred to here, though this would concern seed production more directly than live seed transport.
what is fresh water farming introduction,composition,farming strategies,identification and morphology,life cycle of frawns,water quality,ponds construction,food and feeding habits,Harvesting method of frawns, yield of farming ,advantages of prawns farming ,disadvantages of prawns farming.
A SIMPLE PRESENTATION MADE FOR THE PLUS TWO STUDENTS OF VELLANADU GOVT.HSS, TRIVANDRUM AND PRESENTED ON 19/09/2015 IN A PROGRAM ORGANISED BY FISH FARMERS DEVELOPMENT AUTHORITY (FFDA) OF FISHERIES DEPARTMENT OF KERALA
Culture Of Cobia- Its Biology, Seed Collection & Culture TechniquesHaladharHembram2
Cobia , Rachycentron canadum also known as Lemon fish or Ling is an oceanodromous , migratory and pelagic fish that lives in brackish and marine waters.
The fish is popular known by the common names-Black kingfish, Black salmon, runner or sergeant fish, crab eater and Sea murrel.
It is a highly priced game fish with high market value both in domestic and international markets.
Cobia known for its excellent meat quality is a famous premium food fish highly preferred by people in Taiwan and Japan. The white meat of the fish is served in restaurants as raw fish called Sashimi.
The fast growth rate, adaptability to captive breeding (attains 6-8 kg/year) are the major attributes which makes cobia as an excellent candidate species for aquaculture.
Cobia is one of the marine finfish species with high aquaculture potential particularly for cage culture in India.
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
2. SHELL FISHERIES
1. Crustacean Fisheries
2. Source of Foreign Exchange
3. Prawn (Fresh Water Forms)
4. Shrimps (Marine Species)
5. 150 species of freshwater prawns
6. Most of them belongs to Genus
Macrobrachium
7. Most Common Giant Freshwater
Prawn , Macrobrachium rosenbergii
3. Giant Freshwater Prawn
(Macrobrachium rosenbergii)
Found in rivers where there is tidal influence
Brackish water
Size (15cm female-25 cm male)
Feed (Omnivorous) Insect larvae,small
worms, Molluscs, crustaceans,detritus
Life Cycle(Four Phases)egg, larvae,post
larvae and adults
Breeding (Natural in rainy season)In
captivity through out the year
Fecundity (80,000-100,000 eggs ,Bright
orange in colour)
Larvae require brackish water
4. Prawn Farming
1. Collection of seed from wild or collection
of ripe females
2. Larvel Tanks Rectangular concrete 5x2x1
with brackish water (initially 5ppt salinity
increased to 12ppt after hatching)
Larvae hatch 3–4 days
3. Change of water after 10 days, Feeding
with Artemia, Hen Egg and fish flash 28-
30 days to complete metamorphosis
5. Nursery Ponds (2 kanal) Stocking @ 5000/m
sq when size becomes 2-4 cm shift to Grow-out
ponds
Grow-out Ponds (4-20 kanals), Depth
(1m)Stocking 20,000/Acer, Salinity not more
then 4ppt
Pond preparation same as fish pond,liming, cow
dung, fertilizers
Culture Period (4-5 months) Marketable Size
(30-40 gm) Production 200-1200kg/ac/year
Artificial Feeding 75% Animal and 25% Palnt
origin @ 5% of body wt. Poultry Feed may be
used.
9. Pacific white shrimp biology
Food habits – benthic organizms, detritus
Preferred water temperatures – 25 to 30o C
Preferred salinity – 15 to 25 ppt
Sexual maturity - 1 year
10. Life Cycle
Adults spawn at
sea, the eggs and
larvae drift to
inshore estuaries
where the
juveniles grow.
Adults move back
to sea to spawn.
11. Marine shrimp have
been harvested from
coastal waters,
processed and
shipped as frozen
product for many
years. Shrimp
farmers took
advantage of the
infrastructure to
market cultured
shrimp.
16. Ponds should be
built on salt
flats, which are
covered during
high tide twice a
month.
Mangrove forest
should be
preserved.
Mangroves are
flooded daily by the
high tides
17. Ponds are 5 to 10 ha in area, water depth
averages 1 m and bottoms are flat and slope
to a drain to aid shrimp harvest.
20. Shrimp can be cultured:
1.Extensively
2.Semi-intensively
3.Intensively
21. Postlarvae enter
the pond with the
tide or are stocked
at < 4/m3.
Sometimes the
pond entrance is
screened to limit
entrance of
predators. Water is
not fertilized and
shrimp are not fed.
Extensive
culture
22. Semi-intensive culture
Postlarvae are stocked into ponds at 15
to 25/m3 and are fed daily. Some water
exchange is practiced to maintain water
quality.
23. Shrimp are fed sinking
pellets which are
distributed over the
pond surface. Feeding
trays are sometimes
used to help determine
shrimp appetite.
25. Ponds are fed daily
Shrimp are
sampled weekly
to check growth
rate
Intensive Culture
26. Expansion of
pond area leads to
poor water quality
and high shrimp
mortality
Water intake pipes
and effluent
release in Taiwan
27. Diseases have reduced the shrimp
harvest in many countries.
Black-spot disease
Taura virus
28. Shrimp are benthic animals and live on the
pond bottom. Pond bottoms should be dried
to oxidize organic matter in pond mud before
stocking shrimp. Reducing organic material
improves water quality.
34. World harvest of farmed marine
shrimp in 2000 was 1,087,111 MT
Ecuador
81000 MT
India
73,000 MT
China
114,000 MT
Thailand
204,000 MT
Indonesia
98,000 MT
35. The East produced 90% of the
world farmed marine shrimp
while the West produced 10 %.
36. Harvest of marine shrimp in the U. S.
in 2000 was 4,782 MT, less than 0.2 %
of world harvest.
37. Excellent markets and
ease of culture has made
shrimp one of the fastest
growing aquaculture
industries during the
past 20 years. THE END