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Insights into the ecology of sea turtles and the fisheries of eastern Guajira from the traditional knowledge of fishermen
Fisheries Research ( IF 2.4 ) Pub Date : 2021-03-04 , DOI: 10.1016/j.fishres.2021.105915
Catalina Vásquez-Carrillo , Manuela Peláez-Ossa

The productive waters of the Guajira peninsula (Colombia) support unique marine ecosystems and fisheries with high levels of biodiversity upon which Wayuu indigenous communities rely for subsistence. However, climate change has affected local people’s livelihoods and dependence on fisheries has increased as a result in this area. Socio-ecological knowledge to understand the fisheries and the ecosystems of Guajira is necessary, however, acquiring such knowledge has been difficult in the past due to the remoteness and harsh environmental conditions of the peninsula that hinder corresponding scientific studies. In this study, we contacted local fishermen during a field expedition of three weeks, to collect their traditional ecological knowledge (TEK) about the local marine species, particularly of sea turtles, as well as the fisheries characteristics in eastern Guajira. Fishing practices in eastern Guajira were artisanal, for subsistence, from small wooden or fiberglass vessels. The types of fishing gear varied, the most common of which were chinchorros and entanglement nets. Catch included diverse taxonomic groups such as finned fish, cartilaginous fish, sea turtles and crustaceans. Four sea turtle species occurred at eastern Guajira, the most common of which is the green sea turtle, Chelonia mydas. The sea turtles were mostly juveniles and subadults of both sexes, present year-round and with a peak in the months of May through September. After confirming the accuracy of collected TEK through field observations, we concluded these findings add knowledge to and can support fisheries and biodiversity management in Guajira, particularly in the face of regional climate-imposed challenges to human communities and marine ecosystems.



中文翻译:

从渔民的传统知识中了解海龟的生态和瓜希拉东部的渔业

瓜伊吉拉半岛(哥伦比亚)的生产水支持独特的海洋生态系统和具有高生物多样性水平的渔业,瓦尤族土著社区赖以生存。但是,气候变化影响了当地人民的生计,该地区对渔业的依赖程度有所提高。理解瓜伊吉拉的渔业和生态系统的社会生态知识是必要的,但是,由于半岛的偏远和恶劣的环境条件阻碍了相应的科学研究,因此过去很难获得这种知识。在这项研究中,我们在三周的野外考察中联系了当地渔民,以收集他们关于当地海洋物种(尤其是海龟)的传统生态知识(TEK),以及瓜希拉东部的渔业特征。为了维持生计,瓜希拉东部的捕鱼活动是从小型木制或玻璃纤维船上进行的,以谋生。渔具的类型各不相同,其中最常见的是chinchorros和缠结网。渔获包括鱼类,软骨鱼类,海龟和甲壳类等多种生物分类。瓜希拉东部出现了四种海龟物种,其中最常见的是绿海龟,即Che龟。海龟全年都是主要的幼体和亚成年亚种,在5月到9月的几个月中达到高峰。在通过实地观察确认了收集到的TEK的准确性之后,我们得出结论,这些发现为瓜吉拉邦的渔业和生物多样性管理增添了知识并可以提供支持,尤其是面对区域气候对人类社区和海洋生态系统的挑战时。

更新日期:2021-03-04
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