Bycatch of Protected Megafauna in the Artisanal Coastal Fishery of Mayotte Island, Mozambique Channel
Bycatch of Protected Megafauna in the Artisanal Coastal Fishery of Mayotte Island, Mozambique Channel
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莫桑比克海峡马约特岛沿海手工渔业中受保护巨型动物的兼捕
DOI：
10.4314/wiojms.v7i2.48277
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
M. Quillard
中科院分区：
文献类型：
--
作者：
C. Pusineri;M. Quillard
2007年7月，在马约特岛对406名渔民进行了访谈，以评估海洋巨型动物的副渔获物问题。78名渔民说，到目前为止，他们至少捕获了一只海龟，其中12只是故意的，66只是意外的。在被捕获的海龟中，59只被活着释放，6只被死释放，1只被吃掉或出售。9名渔民一生中至少捕获了一只儒艮，其中7人是意外捕获，2人是故意捕获。所有的动物都是用来吃肉的。10名渔民意外捕获了一只海豚，所有的动物都被释放了：两只死的，八只活的。该热线负责捕获48只海龟和3只海豚。刺网捕获了12只海龟，所有儒艮和4只海豚。据估计，海龟的副渔获死亡率为111 - 256只/年，而海豚和儒艮的副渔获死亡率非常低（<<1 /年）。这些比率对于小种群的玳瑁和儒艮来说可能是非常显著的。大多数渔民知道该物种受法律保护，但似乎不了解这项立法背后的问题。针对这些重要问题，提出了相应的管理措施。
In Mayotte, in July 2007 interviews were conducted on 406 fishermen to assess the bycatch issue on marine megafauna. Seventy-eight fishermen said they caught at least one turtle so far that year, of which twelve were deliberate and 66 accidental. Of the turtle bycaught, 59 were released alive, six released dead and one eaten or sold. Nine fishermen caught at least one dugong during their life time, of which seven were accidental and two deliberate catches. All the animals were kept for meat consumption. Ten fishermen had caught one dolphin accidentally, with all animals released: two dead and eight alive. The handline was responsible for 48 turtle bycatches and three dolphin bycatches. The gillnet was responsible for 12 turtle bycatches, all the dugong catches and four dolphin bycatches. The estimation of bycatch mortality gave a range of 111 to 256 individuals year-1 for turtles, and very low rates (<<1 ind.year-1) for dolphins and dugong. These rates may be highly significant for small populations of hawksbill turtles and dugongs. Most of the fishermen knew the species were protected by law but did not seem to understand the issues behind this legislation. Management measures are proposed to deal with these important issues.