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Recreational fishing as a source for the monitoring of a critically endangered shark in southern Brazil
Fisheries Research ( IF 2.4 ) Pub Date : 2021-05-14 , DOI: 10.1016/j.fishres.2021.106006
Paulo Roberto Santos dos Santos

This study tested the use of information collected by anglers for the fisheries monitoring of a Critically Endangered shark in southern Brazil. Catch records of Mustelus fasciatus, Critically Endangered at national and global levels, were obtained from local anglers and tourists in five cities in the main area of occurrence of the species in Brazil. Although they were not comparable due to differences in effort, area and fishing gear, results showed an increase in the number of capture records in relation to the data available in the last two decades (from 4 to 32). Adult females and neonates were highest in catches during spring and summer. There was a high percentage of data recovery (total length, total weight, sex and stage of development) and release rate, which indicates that recreational fishing is an important generator of information for this endangered species. Strategies for applying monitoring in the area are discussed.



中文翻译:

休闲捕鱼是监测巴西南部严重濒危鲨鱼的来源

这项研究测试了垂钓者收集的信息在巴西南部濒临灭绝的鲨鱼渔业监测中的用途。的捕捞量纪录Mustelus鲀在国家和全球范围内都极度濒危,是从巴西该物种主要产区的五个城市的当地垂钓者和游客那里获得的。尽管由于工作量,面积和渔具的差异而无法比较,但结果显示,相对于最近二十年(从4到32)的可用数据,捕获记录的数量有所增加。在春季和夏季,成年雌性和新生儿的捕获量最高。数据恢复(总长度,总重量,性别和发育阶段)和释放率的百分比很高,这表明休闲捕鱼是该濒危物种的重要信息产生者。讨论了在该区域应用监视的策略。

更新日期:2021-05-15
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