Dynamic Changes in Marine Ecosystems pdf epub mobi txt 電子書下載 2024

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National Research Council

National Academies Press

2006-7-26

168

USD 53.00

Paperback

9780309100502

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发表于2024-11-13

Dynamic Changes in Marine Ecosystems epub 下載 mobi 下載 pdf 下載 txt 電子書下載 2024

Dynamic Changes in Marine Ecosystems pdf epub mobi txt 電子書下載 2024

圖書描述

Recent scientific literature has raised many concerns about whether fisheries have caused more extensive changes to marine populations and ecosystems than previously realized or predicted. In many cases, stocks have been exploited far beyond management targets, and new analyses indicate that fishing has harmed other species - including marine mammals, seabirds, sea turtles, and sea grasses - either directly through catch or habitat damage, or indirectly through changes in food-web interactions. At the request of the National Oceanic and Atmospheric Administration, the National Research Council conducted an independent study to weigh the collective evidence for fishery-induced changes to marine ecosystems and the implications of the findings for U.S. fisheries management. "Dynamic Changes in Marine Ecosystems" provides comprehensive information in regard to these findings.

Dynamic Changes in Marine Ecosystems 下載 mobi epub pdf txt 電子書