Practicing Success

Target Exam

CUET

Subject

Biology

Chapter

Biodiversity and Conservation

Question:

What type of human activity is endangering the continued existence of some commercially important marine fish species?

Options:

Over-exploitation

Pollution

Habitat loss and fragmentation

Global warming.

Correct Answer:

Over-exploitation

Explanation:

a) Over-exploitation

Over-exploitation is the type of human activity that is endangering the continued existence of some commercially important marine fish species. Over-exploitation refers to the excessive harvesting or fishing of marine species beyond their sustainable levels. When fish populations are heavily exploited, they may be unable to reproduce and replenish their numbers, leading to a decline in their populations.

Commercially important marine fish species, such as tuna, cod, and certain types of sharks, are particularly vulnerable to over-exploitation due to their economic value and high demand in the fishing industry. Unregulated or poorly managed fishing practices, including illegal and unreported fishing, can exacerbate the problem and push these species closer to extinction.

Over-exploitation of marine fish species can have severe ecological consequences, disrupting marine food webs, affecting the balance of marine ecosystems, and leading to the decline of other marine species dependent on these fish for food. Sustainable fishing practices and effective fisheries management are crucial to ensure the conservation and continued existence of commercially important marine fish species.