1. Which of the following explains why ocean fisheries are so threatened? a. The
ID: 115147 • Letter: 1
Question
1. Which of the following explains why ocean fisheries are so threatened? a. The growing human population requires protein, leading to a greater demand on fisheries. b. Technological advances allow us to fish so efficiently that too many fish may be removed from an area. c. Given that no nation can lay legal claim to resources in the open ocean, these resources are more susceptible to overuse and degradation. d. A and B e. A, B and C
2. The term bycatch refers to: a. non-target species that become trapped in fishing nets and are usually discarded. b. the fish that escaped the net and got away. c. the most abundant fish in a given net haul. d. the most profitable species taken in a net haul.
3. When fish at a higher trophic level are depleted, fishers often move on to take fish at the trophic level directly below that. This is known as: a. the tragedy of the commons. b. fishing down the food chain. c. the time delay social trap. d. trophic disintegration.
5. How does an Economic Exclusive Zone help protect ocean fisheries? a. Fishing is limited in these zones to only small fishing boats; large factory ships are excluded. b. These are areas off limits to fishing during the breeding season of the economically valuable fish species that live there. c. A nation has the exclusive right to fish in these waters and can exclude fishers from other nations. d. Only the most economically valuable fish are allowed to be taken; other fish are protected.Explanation / Answer
Answer 1. e. All three give the reasons why the ocean fisheries are so threatened. As the human need is increasing so in order to meet the demand more fishes are catched. Also with the improved technology more no. of fished can be caught. and with no rules on the ocean these resources are exploited.
Answer 2. a. non-target species that become trapped in fishing nets and are usually discarded. By catch refers to non-target species that are caught along with commercial species.
Answer 3. b. fishing down the food chain. Once the fishes of higher level are depleted then fishes of tropical level are catched.
Answer 5. A nation has the exclusive right to fish in these waters and can exclude fishers from other nations. It Sovereign rights for the purpose of exploring, exploiting, conserving and managing natural resources, whether living and nonliving, with regard to other activities for the economic exploitation and exploration of the zone. It is controlled and maitained by the nation to which it belongs.
Please post rest of the questions in another questionaire as only 4 can be answered.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.