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首页> 外文期刊>Ocean & coastal management >Can stable isotopes be applied to determine shrimp stocks origin in SE Brazil? An approach for utilization in fishery management
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Can stable isotopes be applied to determine shrimp stocks origin in SE Brazil? An approach for utilization in fishery management

机译：可以稳定的同位素用于确定Se Brazil的虾股来源吗？ 渔业管理利用方法

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摘要

Stable isotopes of carbon (13C) and nitrogen (15N) are chemical markers used to trace the geographic origin of species targeted by commercial fisheries, helping in fishery management strategies. Considering the extension of Brazilian coastline, approaches for shrimp stock discrimination may assist local fisheries. This study characterizes the isotopic composition in natural stocks of the penaeid shrimps Xiphopenaeus kroyeri, Artemesia longinaris e Litopenaeus schmitti, targets of small-scale coastal fisheries in SE Brazil. Shrimps were obtained from six fishing ports located on Rio de Janeiro and Esp?rito Santo coastline (from 18?S to 23?S). 813C-815N distinguished stocks from fishing ports and 813C had higher variability when compared to 815N, explaining most of the differences between stocks for all species. This study presents a participatory planning for local fishery management with stakeholders (fishers, public managers and researchers) working together. The planning aims to minimize possible conflicts between near fishing communities through the identification of fishery boundaries, maintaining the fishing territories, and to promote the fishery production from a particular community, valuing the local economy. The proposed actions can establish an identity to local fisheries and improve small-scale fisheries governance in SE Brazil.
机译：碳（13C）和氮气（15N）的稳定同位素是用于追踪商业渔业所针对的物种的地理起源，帮助渔业管理策略。考虑到巴西海岸线的延伸，虾股歧视的方法可以帮助当地渔业。本研究表征了Penaeid虾Xiphopenaeus Kroyeri，Artemesia Longinaris e Litopenaeus Schmitti，Se Brazil的小型沿海渔业的自然股票的同位素组成。从位于里约热内卢和ESP的六个捕鱼港口获得虾（从18？S到23秒）。与815N相比，813C-815N渔港和813C的杰出股具有更高的可变性，解释所有物种的股票之间的大部分差异。本研究提出了利益相关者（渔民，公共管理人员和研究人员）的当地渔业管理的参与式计划。规划旨在通过识别渔业界限，维护渔民，从特定社区促进渔业生产，从而最大限度地减少附近渔业社区之间的可能冲突。拟议的行动可以为当地渔业建立身份，并在巴西改善小规模渔业治理。

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