(a) Name two common sources from which fish are captured.
(b) Why are mussels and shellfish cultivated?
(C) As marine fish stock gets depleted, how can the demand for more fish be met?
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Answers
Answer:
Explanation:
(a)1.Freshwater sources - includes lake, rivers, ponds, reservoirs, wetland swamps etc.
2. Brackish water sources - includes estuaries, brackish water lakes etc.
3. Marine water resources - Inshore and offshore areas of marine waters.
(b)Mussels have the most impressive nutritional profile of all shellfish. They contain high levels of highly desirable long chain fatty acids EPA and DHA . These fats have many beneficial effects, including improving brain function and reducing inflammatory conditions, such as arthritis. Mussels are also a brilliant source of vitamins. Plus they give you a shot of important minerals, such as zinc, which helps build immunity. Mussels even contain levels of iron and folic acid to rival red meats.
(c)the future of fish, as a sustainable food source, lies in fish farming, and further restrictions on trawlers using seine nets.They’re doing it now with salmon farming in the UK but it’s only a matter of time until someone starts farming haddock and cod here.Cod farming has already started in Norway, and a company called Viking Fish Farms here in Scotland are developing food pellets with the intention of farming haddock and cod in the near future.