海州湾近岸张网渔获物种类组成和资源利用现状分析

发布时间：2018-10-25 19:18

【摘要】：根据2011年3月~2012年12月海州湾沿岸定置张网调查资料,对海州湾张网渔获物组成进行比较分析。结果表明,张网渔获物组成具有明显的季节变化特征,春季以尖海龙(Syngnathus acus)、六丝钝尾虾虎鱼(Amblychaeturichthys hexanema)、双斑圀(Charybdis bimaculata)、长蛸(Octopus variabilis)、方氏云溭(Enedrias fangi)和口虾蛄(Oratosquilla oratoria)为主,秋季主要为小黄鱼(Larimichthys polyactis)、六丝钝尾虾虎鱼、三疣梭子蟹(Portunus trituberculatus)、日本枪乌贼(Loligo japonica)、鹰爪虾(Trachypenaeus curvirostris),冬季主要为六丝钝尾虾虎鱼、口虾蛄、鲜明鼓虾(Alpheus heterocarpus)、细鳌虾(Leptochela gracilis)和日本鼓虾(Alpheus Japonicus)。主要经济鱼类小黄鱼在9、10月产量最高,但达到可捕体长的小黄鱼不足1%,主要经济虾类鹰爪虾在9、10月产量最高,取样中69.46%的鹰爪虾达到可捕体长。渔捞日志记录表明,9月份单船平均网产达到最大值(17.01kg/net),12月份单船平均网产最低(2.87kg/net)。建议对张网渔业加强管理,开展生态型渔具渔法的研究,放大网目尺寸,加强对近海资源的养护。
[Abstract]:Based on the survey data of the fixed net along Haizhou Bay from March 2011 to December 2012, the catch composition of the catenary in Haizhou Bay was compared and analyzed. The results showed that the catch composition of tennet had obvious seasonal variation, and in spring, (Octopus variabilis), of (Charybdis bimaculata), (Amblychaeturichthys hexanema), (Amblychaeturichthys hexanema), was used in spring. (Enedrias fangi) and (Oratosquilla oratoria) were dominant, and in autumn they were mainly (Larimichthys polyactis), (Larimichthys polyactis), six-filled-tailed shrimps, and (Portunus trituberculatus), Portunus trituberculatus, (Portunus trituberculatus), (Loligo japonica), hawk claw, (Trachypenaeus curvirostris), Japanese squid. In winter, they are mainly six-silk blunt-tailed tiger fish, mouth shrimp, (Alpheus heterocarpus), (Leptochela gracilis) and Japanese drum shrimp (Alpheus Japonicus). The yield of small yellow croaker was the highest in September and October, but the catch length of yellow croaker was less than 1. The yield of the main economic shrimp was the highest in September and October. 69.46% of the shrimp in the sample reached the length of catch. Fishing log records show that the average net production per vessel reached the maximum (17.01kg/net) in September and the lowest in December (2.87kg/net). It is suggested to strengthen the management of the net fishery, carry out the research on the ecological fishing gear and fishery method, enlarge the mesh size, and strengthen the conservation of the offshore resources.
【作者单位】：中国海洋大学水产学院;
【基金】：公益性行业(农业)科技专项项目(201203018) 中央高校基本科研业务费专项(201022001)资助
【分类号】：S932

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