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70. Based on the simple food chain for cod shown here, and what you know about the biology of cod, propose one action that people could take to help the cod population recover. (3 marks)

Phytoplankton (producers) -> zooplankton -> small fish, shrimp, crabs -> cod

User Mosh Feu
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Final answer:

To aid cod population recovery, implementing stricter fisheries management, including catch limits and seasonal restrictions, protection of breeding habitats, and creation of marine reserves, is essential in curbing overfishing and promoting a balanced ecosystem.

Step-by-step explanation:

Proposed Action to Help Cod Population Recover

To help the cod population recover, one action that people could take is to implement and enforce stricter fisheries management practices, such as setting catch limits and seasonal fishing restrictions. Overfishing has led to the collapse of the cod population, and by reducing the pressure on the cod stocks, there will be a greater opportunity for cod numbers to rebound. Further, managing the catch of small fish, shrimp, and crabs, which are prey for the cod, will ensure that the cod have an ample food supply to support population growth.

Additionally, protecting habitats essential for cod breeding and reducing bycatch through the use of more selective fishing gear can prevent unintended death of juvenile cod, which are crucial for the future of the population. Finally, creating marine reserves where fishing is not allowed can provide safe havens for cod and other marine life to reproduce and grow without human interference.

It's important to consider the entire food chain, from phytoplankton to zooplankton, through to small fish and the cod themselves, as each plays a vital role in the ecosystem and the recovery of cod populations. Responsible and sustainable fishing practices can lead to a more balanced ocean ecosystem and the recovery of the cod population.

User BOSS
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increase the number of small fish, crab and shrimp into the ecosystem
User RobC
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