【作者】 刘喆； 戴天元；

【Author】 LIU Zhe1,2,DAI Tian-yuan2 (1.Shanghai Ocean University,shanghi 201306;2.Fujian Fisheries Research Institute,X iamen 361012)

【机构】 上海海洋大学； 福建省水产研究所；

【摘要】 根据2008年5月、8月、11月和2009年2月对台湾海峡北部虾蟹类资源的调查资料,分析了凹管鞭虾的数量分布、生物学特性并应用资源密度面积法评估了其资源量。结果表明:凹管鞭虾总渔获量平均密度指数为1277.3g/h,5月最高达到2403.0 g/h,主要栖息在水深60～120 m的外海水域,以水深80～100 m海域数量为多;体长分布范围为36～113mm,优势体长组45～75mm,雌虾个体大于雄虾个体,体重分布范围为0.6～16.3g,优势体重组2.0～6.0g;雌性数量多于雄性,雌雄性比为1:0.79,繁殖期在6～11月:摄食强度较高,以1、2级为主;现存资源量为0.3260×104t,其中5月为0.6164×104t,8月为0.2508×104t,11月为0.5726×104t,2月为0.05286×104t。更多还原

【Abstract】 Based on the data of May,August,November 2008 and February 2009 shrimp and crab resource surveys in the northern Taiwan Striat,this papper analyzed the quantitative distribution and biological characteristics of Solenocera koelbeli de Man,and assessed its resources by using the density-area method. The results showed that the average density of its resource was 1277.3g/h,and the average density of its resource in May,August,November and February were.2403.0,982.7,2243.3 and 207.1g/h,respectively. The main habitat was found in depth of 60～120m water in outer-sea,the dominant were distributed in depth of 80～100 m water.The body length varied between 36 and 113mm,the dominant were between 45 to 75 mm.The body weight varied between 0.6 and 16.3g,the dominantwere between 2.0 to 6.0 mm.The quantity of female was obviously larger than the male with the sex ratio 1:0.79.The breeding period was in June - Nov.,with flourishing period being Aug - Sep.Its food taking grade,which was in a higher intensity, in the mass was 1-2.The amount of existing resources is 0.3260×104t,and the amount of existing resources in May,August,November and February were 0.3260×104t,0.2508×104t,0.5726×104t and 0.05286×104t更多还原