论文部分内容阅读
拖虾是南海捕捞渔业的一种主要作业方式,南海北部的珠江口是广东省虾拖网的优良渔场之一。文章以珠江口铜鼓水道虾拖网渔业生物调查资料为基础,对该渔业的副渔获组成进行了分析研究。结果表明,珠江口虾拖网渔获种类多,以底栖鱼类和甲壳类为优势类群;副渔获的组成在不同月份有所变化;副渔获比例较高,虾与副渔获之比为1:10-1:19;副渔获中大部分鱼种未达到可捕规格,对幼鱼资源造成损害。建议渔业管理部门重视对副渔获问题的调查研究。
Shrimp shrimp is a major operation of the South China Sea capture fisheries, the Pearl River estuary in the northern part of the South China Sea is one of the fine fishing shrimp trawl in Guangdong Province. Based on the survey data of the shrimp trawl fishery in the copper drum aqueduct of the Pearl River estuary, the article made an analysis of the by-catch composition of the fishery. The results showed that there were more trawl catchs in the Pearl River estuary, with the benthic fish species and crustaceans as the dominant species. The composition of by-catch varied with different months; the proportion of by-catch was higher, the ratio of shrimp to by-catch 1: 10-1: 19; Most fish species in by-catch did not reach catchable specifications, causing damage to juvenile resources. It is suggested that the fishery administration should pay more attention to the investigation of by-catch.