Sustainable fisheries：練習問題

Which management tool is specifically categorized as a consumer-orientated tool for promoting sustainable fishing?

A coastal community depends heavily on a local fishery. If the government suddenly imposes strict no-take zones, what is a likely short-term sociological impact?

If the rate of fishing mortality plus the rate of natural mortality consistently exceeds the combined rates of recruitment and growth, what is the most likely consequence for the fish stock?

Sustainable exploitation of a fishery is achieved when:

Which of the following is a potential disadvantage of using purse seine fishing as a modern fishing method?

Explain how the imposition of fines serves as a tool for fisheries management.

Describe how replanting mangroves can contribute to the rehabilitation of depleted fish stocks.

Outline why satellite tracking is an effective method for monitoring fishing activity to ensure sustainability.

Sustainable fisheries management relies on accurate data regarding fish stocks. One essential piece of information is the recruitment rate.

(a) Define the term recruitment in the context of a fishery.

(b) Explain why fisheries managers must understand the age of reproductive maturity for a target species when setting minimum size limits.

(c) State one reason why a high rate of natural mortality in a population might make a fishery harder to manage sustainably.

Modern technology has significantly increased the efficiency of commercial fishing, often leading to overexploitation.

(a) Discuss how the use of sonar and factory ships has impacted the sustainability of global fish stocks.

(b) Describe the physical impact of benthic trawling on marine habitats.

(c) Explain how restriction of fishing intensity, such as limiting the number of boats allowed in a fishery, helps ensure the long-term viability of the stock.