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首页> 外文期刊>Latin american journal of aquatic research >Bycatch of the Isla del Rosario (Gulf of Salamanca, Colombian Caribbean) artisanal shrimp fishery in an approximation to the biodiversity impact
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Bycatch of the Isla del Rosario (Gulf of Salamanca, Colombian Caribbean) artisanal shrimp fishery in an approximation to the biodiversity impact

机译：罗萨里奥岛（哥伦比亚加勒比海萨拉曼卡海湾）手工对虾渔业的兼捕物，对生物多样性的影响近似

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ABSTRACT In the period March 2009-February 2010 the fish bycatch of the artisanal shrimp fishery operating off the beach of Isla del Rosario (Gulf of Salamanca, Colombian Caribbean) was evaluated and length-frequency data analysis were done for five of the main ichthyic species. For this purpose, data registered in the project “Pesca artesanal del Magdalena”, processed in the Fisheries Information System of Invemar (SIPEIN) to obtain fishery variables, on a monthly basis, was used. Between shrimp and fish fauna 38,265 kg were registered. The ichthyic bycatch fauna was composed of 59 fish species, distributed in 23 families, being Engraulidae, Sciaenidae, and Mugilidae the most representative. Regarding the engraulid Cetengraulis edentulus biomass, it was the most important species. Ichthyic bycatch to shrimp relationship was 1.2:1.0 with shrimp beach seine. During the assessed year, the highest mean Landing Per Unit Effort (LPUE) was present in the dry season, but November (rainy season) was the month with the highest shrimp LPUE. The indicators, Lc (mean length) and spawning/juvenile proportion, evidence growth overfishing for the species Bairdiella ronchus, Cathorops mapale, Mugil incilis and Trichiurus lepturus. The state of this fishery and the impact it generates on the ecosystem is discussed. Measures for its proper management are recommended.
机译：摘要在2009年3月至2010年2月期间，对在罗萨里奥岛（哥伦比亚加勒比海萨拉曼卡湾）海滩作业的手工虾渔场捕捞的副渔获物进行了评估，并对5种主要鱼类鱼种进行了长频数据分析。为此，使用了在“ Inesmar渔业信息系统”（SIPEIN）中处理的“ Pesca artesanal del Magdalena”项目中注册的数据，以每月获取渔业变量。在虾和鱼类之间，共记录了38265公斤。鱼鳞兼捕动物群由59种鱼类组成，分布在23个科中，其中最具代表性的是En科、,科和ida科。对于令人垂涎的食小草生物量而言，它是最重要的物种。鱼虾围网渔获率与虾的关系为1.2：1.0。在所评估的年度中，在旱季中平均单位着陆量（LPUE）最高，但是11月（雨季）是虾LPUE最高的月份。指标Lc（平均长度）和产卵/幼体比例证明了罗氏双歧杆菌（Bairdiella ronchus），Maphorops mapale，Mugil incilis和Trichiurus lepturus的过度捕捞。讨论了这种渔业的状况及其对生态系统的影响。建议采取适当管理措施。

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