Sea Turtle, Shark, and Dolphin Bycatch Rates by Artisanal and Semi-Industrial Fishers in Maio Island, Cape Verde

IF 0.9 4区生物学 Q3 ZOOLOGY

Chelonian Conservation and Biology Pub Date : 2016-12-30 DOI:10.2744/CB-1213.1

Katia Lopes, L. Passos, J. Rodrigues, Franziska Koenen, V. Stiebens, T. Székely, Amanda Dutra

引用次数: 10

Abstract

Abstract Marine animals including turtles, sharks, and dolphins are bycaught at an alarming rate worldwide, although the extent of this bycatch is rarely quantified. Here, we assess the frequencies of turtle, shark, and dolphin bycatch by fisheries operating artisanal and semi-industrial boats in the Island of Maio, Cape Verde. Among all interviews (n = 139), fishers reported higher shark bycatch (71%) than turtle (32%) and dolphin (9%) bycatch. However, we found no difference in turtle bycatch between artisanal and semi-industrial fishers. Artisanal fishers and semi-industrial fishers caught mostly loggerhead turtle (76%, 48%) followed by the green turtle (6%, 38%). We need further studies that specifically target bycatch and the type of gear used by fishers and verify whether the reported frequencies correspond to actual bycatch rates.

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佛得角马约岛手工和半工业渔民的海龟、鲨鱼和海豚兼捕率

海龟、鲨鱼和海豚等海洋动物在世界范围内被兼捕的速度惊人，尽管这种兼捕的程度很少被量化。在这里，我们评估了佛得角马约岛手工和半工业渔船的渔业捕捞海龟、鲨鱼和海豚的频率。在所有访谈(n = 139)中，渔民报告的鲨鱼副渔获量(71%)高于海龟(32%)和海豚(9%)。然而，我们发现手工渔民和半工业渔民的龟副渔获量没有差异。手工渔民和半工业化渔民捕获的主要是红海龟(76%，48%)，其次是绿海龟(6%，38%)。我们需要进一步的研究，专门针对副渔获物和渔民使用的渔具类型，并核实报告的频率是否与实际的副渔获率相符。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chelonian Conservation and Biology 生物-动物学

CiteScore

1.70

自引率

14.30%

发文量

审稿时长

>12 weeks

期刊介绍： Chelonian Conservation and Biology is a biannual peer-reviewed journal of cosmopolitan and broad-based coverage of all aspects of conservation and biology of all chelonians, including freshwater turtles, marine turtles, and tortoises. Manuscripts may cover any aspects of turtle and tortoise research, with a preference for conservation or biology. Manuscripts dealing with conservation biology, systematic relationships, chelonian diversity, geographic distribution, natural history, ecology, reproduction, morphology and natural variation, population status, husbandry, community conservation initiatives, and human exploitation or conservation management issues are of special interest.