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Marine turtle mortality in a southern Caribbean artisanal fishery: A threat for immature green turtles
Regional Studies in Marine Science ( IF 2.1 ) Pub Date : 2020-08-07 , DOI: 10.1016/j.rsma.2020.101380
Daniela Rojas-Cañizales , Nínive Espinoza-Rodríguez , María J. Petit-Rodríguez , Jordano Palmar , Carmen Mejías-Balsalobre , Natalie Wildermann , Tito Barros , Héctor Barrios-Garrido

The impact of artisanal fisheries on marine turtle populations is still understudied in the southern Caribbean. In the Venezuelan Guajira Peninsula, artisanal fishing of marine turtles by the indigenous Wayuú people has occurred for generations. Nevertheless, understanding the issues regarding turtle take is challenging. Surveys and semi-structured interviews were carried out at eight landing sites located in three different zones in Kazuzain village, Middle Guajira. Carapaces or plastrons were recorded to estimate take level, and measured to determine life stage. Minimum take was 167 marine turtles over 53 weeks, or 3.15 turtles/week on average (estimated 163.8/yr). Most records encountered were from green turtles (n=154; 92.2%), and the majority of these were immature (n=76; 89.4%). Key-informants reported that marine turtles were not the target catch. However, most interviewees affirmed that take of marine turtles in Kazuzain is not only for traditional purposes, but also to meet economic shortfalls. They also stated that trade of marine turtles has increased over the last ten years due to the Venezuelan economic crisis. This is the first assessment of marine turtle take in this village and fills an information gap that can aid resource managers to mitigate the impacts of take, and develop potential conservation solutions for marine turtle aggregations and the people that depend on them.



中文翻译:

南部加勒比海手工渔业中的海龟死亡率:未成熟绿海龟的威胁

在加勒比海南部,仍未充分研究手工渔业对海龟种群的影响。在委内瑞拉瓜希拉半岛,土著瓦伊乌人世代相传地手工捕捞海龟。尽管如此,了解有关龟取食的问题仍然具有挑战性。在瓜吉拉中部Kazuzain村三个不同区域的八个着陆点进行了调查和半结构化采访。记录甲骨或腹甲以估计摄入量,并进行测量以确定生命阶段。最少摄食的是53周内的167只海龟,或平均每周3.15只海龟(估计为每年163.8只)。遇到的大多数记录来自绿海龟(n = 154; 92.2%),其中大多数不成熟(n = 76; 89.4%)。重要信息人报告说,海龟不是目标渔获物。但是,大多数受访者确认,在Kazuzain捕捞海龟不仅出于传统目的,而且还弥补了经济上的不足。他们还表示,由于委内瑞拉经济危机,海龟贸易在过去十年中有所增加。这是对该村庄中海龟取食的首次评估,填补了信息空白,可以帮助资源管理者减轻取食的影响,并为海龟聚集体和依赖它们的人们开发潜在的保护解决方案。他们还表示,由于委内瑞拉经济危机,海龟贸易在过去十年中有所增加。这是对该村庄中海龟取食的首次评估,填补了信息空白,可以帮助资源管理者减轻取食的影响,并为海龟聚集体和依赖它们的人们开发潜在的保护解决方案。他们还表示,由于委内瑞拉经济危机,海龟贸易在过去十年中有所增加。这是对该村庄中海龟取食的首次评估,填补了信息空白,可以帮助资源管理者减轻取食的影响,并为海龟聚集体和依赖它们的人们开发潜在的保护解决方案。

更新日期:2020-08-07
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