Questions: 1.5.2 Test (CST): Humans and the Environment Question 17 of 25 Which of these methods of commercial fishing is linked to excessive bycatch? A. Trolling B. Handline fishing C. Seining D. Long-line fishing SUBMIT

The answer is D: Long-line fishing.

Explanation for each option:

A. Trolling: This method involves dragging baited lines behind a moving boat. It is generally more selective and results in less bycatch compared to other methods, as it targets specific species.

B. Handline fishing: This is a traditional method where a single fishing line is used, often with one hook. It is highly selective and results in minimal bycatch.

C. Seining: This method uses a large net to encircle fish. While it can result in bycatch, it is not as notorious for excessive bycatch as long-line fishing.

D. Long-line fishing: This method involves setting out long lines with many baited hooks, which can catch a wide variety of marine life, including non-target species such as seabirds, turtles, and sharks. This results in a significant amount of bycatch, making it a method linked to excessive bycatch.

In summary, long-line fishing is the method most associated with excessive bycatch due to its non-selective nature and the large number of hooks used.