张洪亮¹，林显鹏¹，徐汉祥 ¹，黄洪亮²
（1 浙江省海洋水产研究所，浙江舟山316100；2 中国水产科学研究院东海水产研究所，上海 200090）

摘要：针对目前浙江省普通使用的梭子蟹笼对三疣梭子蟹幼蟹资源损害较严重的现状，设计了在其框架结构上开设横向幼蟹释放口的选择性蟹笼，并进行了海上生产性试验。结果表明：释放口高度与可从其逃逸的三疣梭子蟹的最大甲高趋于一致；尾数选择率可用各甲高组的平均选择率表示，其生产性试验值＜20%，释放效果明显。

关键词：蟹笼；选择性；三疣梭子蟹

Productive study on the design of crab pot for Portunus trituberculatu
ZHANG Hong–liang ¹, XU Hang–xiang ¹, LIN Xian–peng ¹, HUANG Hong–liang ²
( 1 Marine Fisheries Research Institute of Zhejiang Province, Zhoushan 316100, China;
2 East China Sea Fisheries Research Institute, Shanghai 200090, China )

Abstract: A selective crab pot with escape gap opened on the framework for juvenile crab was designed for the serious damages of the current common use crab pot of Zhejiang Province on the juvenile crab resources of Portunus trituberculatu. The productive tests on the sea were carried out. The results showed that the height of the escape gap is almost the same as the largest shell height of P. trituberculatu which can escape from it. The selective rate in number can be denoted by the average selection of shell height group, and its values of productive tests were smaller than 20% which implied a good releasing effect. If the results of this study can be implied, it will profitably effect on the sustained utilization of P. trituberculatu resources, the sustained development of the crab pot fisheries of Zhejiang Province and the East China Sea Region.

Key words: pot, selectivity; Portunus trituberculatu

资助项目：国家科技支撑计划项目（2007BAD43B04、2007BAD43B01、2007BAD43B02）；浙江省科研院所公益技术攻关项目（2007BAD43B02）；浙江省科技厅公共服务专项（2007F30003）

作者简介：张洪亮（1968—），男，高级工程师，主要从事渔业资源与渔具渔法的研究。E-mail: hidalgo310@163.com

(来源：《渔业现代化》2010.37(4)：49-53)