Podcast
Questions and Answers
During which months are spat of Crossostrea madrasensis generally most abundant?
During which months are spat of Crossostrea madrasensis generally most abundant?
- April – June (correct)
- July – September
- January – March
- October – December
What is the primary source of pearl oyster seeds in aquaculture?
What is the primary source of pearl oyster seeds in aquaculture?
- Hatchery produced seeds (correct)
- Wild collection
- Natural breeding in coastal lagoons
- Seeds from mangrove areas
Which of the following shrimp species is not considered cultivable in India?
Which of the following shrimp species is not considered cultivable in India?
- Penaeus semisulcatus
- Penaeus indicus
- Penaeus monodon
- Penaeus vannamei (correct)
Which factor does not significantly affect shrimp seed abundance?
Which factor does not significantly affect shrimp seed abundance?
Where are the seeds of mud crab, Scylla serrata, primarily distributed?
Where are the seeds of mud crab, Scylla serrata, primarily distributed?
What is the primary characteristic of P.monodon that allows it to thrive in various habitats?
What is the primary characteristic of P.monodon that allows it to thrive in various habitats?
When is the seed availability of shrimp particularly abundant?
When is the seed availability of shrimp particularly abundant?
Which coastal region of India does not report availability of edible oyster seeds?
Which coastal region of India does not report availability of edible oyster seeds?
What is the optimal salinity range for certain aquaculture species?
What is the optimal salinity range for certain aquaculture species?
Which soil type is generally preferred for aquaculture operations?
Which soil type is generally preferred for aquaculture operations?
What is a critical factor in determining farm size for aquaculture?
What is a critical factor in determining farm size for aquaculture?
What water quality aspect is essential for good aquaculture productivity?
What water quality aspect is essential for good aquaculture productivity?
What must be ensured to facilitate proper water management in aquaculture?
What must be ensured to facilitate proper water management in aquaculture?
Which elevation characteristic is important for aquaculture land?
Which elevation characteristic is important for aquaculture land?
What is an important infrastructure need for aquaculture operations?
What is an important infrastructure need for aquaculture operations?
What affects the quantity of water required in aquaculture ponds?
What affects the quantity of water required in aquaculture ponds?
What is the dominant species of lobster in the Mandapam area?
What is the dominant species of lobster in the Mandapam area?
What is the maximum growth size of Panulirus ornatus?
What is the maximum growth size of Panulirus ornatus?
Why is site selection critical in aquaculture operations?
Why is site selection critical in aquaculture operations?
What factors generally influence site selection in aquaculture?
What factors generally influence site selection in aquaculture?
Which crab species ranks third in importance as gourmet food among marine crustaceans?
Which crab species ranks third in importance as gourmet food among marine crustaceans?
What are the two pairs of spines on the antennular plate of Panulirus ornatus?
What are the two pairs of spines on the antennular plate of Panulirus ornatus?
What is a common characteristic of the body segments of Panulirus ornatus?
What is a common characteristic of the body segments of Panulirus ornatus?
What challenges can arise from poor site selection in aquaculture?
What challenges can arise from poor site selection in aquaculture?
What is the purpose of fry collection in aquaculture?
What is the purpose of fry collection in aquaculture?
Which aspect is NOT typically addressed in water management for aquaculture?
Which aspect is NOT typically addressed in water management for aquaculture?
What is a primary consideration when selecting shrimp fry for stocking?
What is a primary consideration when selecting shrimp fry for stocking?
What is the primary goal of pond preparation in aquaculture?
What is the primary goal of pond preparation in aquaculture?
Which of the following is essential in the grow-out operations of crustaceans?
Which of the following is essential in the grow-out operations of crustaceans?
Which of the following statements about oyster culture techniques is accurate?
Which of the following statements about oyster culture techniques is accurate?
What is a common challenge in the culture of groupers?
What is a common challenge in the culture of groupers?
What must be monitored closely in shrimp culture systems to ensure success?
What must be monitored closely in shrimp culture systems to ensure success?
What is a major constraint to the development of tropical mussel culture?
What is a major constraint to the development of tropical mussel culture?
Which country is NOT mentioned as having developed techniques for the production of H.scabra?
Which country is NOT mentioned as having developed techniques for the production of H.scabra?
What compensates for the low economic value of mussels?
What compensates for the low economic value of mussels?
What is one of the constraints to hatchery production of H.scabra in Indonesia?
What is one of the constraints to hatchery production of H.scabra in Indonesia?
What is a primary reason for focusing on sea ranching of mussels?
What is a primary reason for focusing on sea ranching of mussels?
What type of reproduction do cultured seaweeds utilize?
What type of reproduction do cultured seaweeds utilize?
What is a common method used for the grow-out of seaweeds?
What is a common method used for the grow-out of seaweeds?
What infrastructure requirement is typically low for sponge aquaculture?
What infrastructure requirement is typically low for sponge aquaculture?
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Study Notes
Aquaculture Overview
- Diverse species cultured in aquaculture: groupers, snappers, shrimps, lobsters, and crabs.
- Emphasis on grow-out operations, pond preparation, water management, and supplementary feeding.
Culture Practices
- Grey mullet culture includes systems, fry collection, and operational strategies.
- Asian seabass culture focuses on sourcing seed and grow-out methods.
- Grouper culture addresses biology and seed supply essentials.
Crustacean Cultivation
- Shrimp culture requires attention to systems, characteristics, and operational considerations.
- Key steps in shrimp production: pond preparation, fry selection, stocking, feeding, water management, aeration, and harvesting.
- Mud crab culture utilizes specific methods for effective growth and sustainability.
Mollusca and Seaweed Aquaculture
- Oyster culture involves specialized techniques, with Indian practices highlighted.
- Mussel farming faces economic constraints but benefits from ease of culture and high productivity.
- Techniques for cultivating seaweed include natural substrates and low-cost production technologies.
Seed Resources
- Availability of key species for aquaculture: shrimp (Penaeus monodon, P.indicus, P.semisulcatus), mud crab (Scylla serrata), and oysters (Crossostrea madrasensis).
- Shrimp seed abundance affected by environmental factors such as tides, lunar phases, and pollution.
- Importance of hatchery-produced seeds in aquaculture due to limited natural availability.
Site Selection and Water Management
- Critical factors in site selection for aquaculture include environmental conditions and infrastructure accessibility.
- Proper water supply systems essential for aquaculture success; dependent on pond design and climatic conditions.
- Soil quality, drainage, and pH levels are important for establishing viable farming operations.
Economic Considerations
- Demand and price fluctuations impact aquaculture viability, especially for low-value products like mussels.
- Importance of local market access and cost-effective production methods.
- The pivotal role of skilled labor and infrastructure in the success of aquaculture farms.
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