网箱养殖大黄鱼柔性分级装置设计与试验  

The Design and Experiments of Flexible Grading Device for Cage-cultured Pseudosciaena crocea

作　　者：宋利明[1] 吕凯凯[1] 张禹[1] 蔡厚才 王敏法[1] 贾涛[1] 

机构地区：[1]大洋渔业资源可持续开发省部共建教育部重点实验室,大洋生物资源开发与利用上海市高校重点实验室,上海海洋大学,上海201306 [2]浙江省平阳县南麂岛开发有限公司,浙江温州325401

出　　处：《浙江海洋学院学报（自然科学版）》2009年第2期170-175,182,共7页Journal of Zhejiang Ocean University(Natural Science Edition)

基　　金：温州市科技发展计划项目(S2004B024);上海市重点学科建设项目(S30702);浙江省平阳县南麂岛开发有限公司项目(技04-49)

摘　　要：根据大黄鱼的生物学特性和渔具选择性原理,以体重300g为分级标准,设计并制作出网箱养殖大黄鱼柔性分级装置,该装置分级栅的平均间距为33.6mm。在方形网箱中进行12次分级试验,结果表明:(1)该装置能对方形网箱内所有鱼一次性完成分级;(2)该装置适用于小型网箱养殖鱼类的分级,操作方便、对鱼惊扰较少;(3)分级效果与分级前所有鱼的体重分布、生物学参数有关;(4)分级时间在1h以上,分级效果较好。Based on the biological characteristics of selectivity, the flexible standard 300 g. Twelve grading cage-cultured large yellow croakers and fishing gear device was built. The size of the spacing was 33.6 mm in term of the grading experiments were carried out in small size square net using the flexible grading device, all fish in small size square net cage can be cage. The results showed： （1） that graded once; （2） that the flexible grading device can be used to grade the fishes cultured in the small size square cage. The handling was convenient and less disturbance to the fish; （3） that of unmarketable fish and the biological parameter lhour, the grading effect was better. grading effect were related to the percentage of individuals of fish; （4） that when the grading duration was more than

关 键 词：大黄鱼 柔性分级装置 分级效果 网箱养殖 

分 类 号：S965.322[农业科学—水产养殖]