浙江北部海域条石鲷标志放流及回捕调查  

Investigation of A Mark-Recapture Method of Oplegnathus fasciatus in the Waters of Northern Zhejiang

作　　者：王好学[1] 徐开达[1] 周永东[1] 陈璐 李鹏飞[1] 徐国强[1] 朱凯 WANG Hao-xue;XU Kai-da;ZHOU Yong-dong(Zhejiang Marine Fisheries Research Institute,Scientific Observing and Experimental Station of Fishery Resources for Key Fishing Grounds,Ministry of Agriculture and Rural Affairs,Key Laboratory of Sustainable Utilization of Technology Research for Fishery Resource of Zhejiang Province,Zhoushan 316021,China)

机构地区：[1]浙江省海洋水产研究所,农村农业部重点渔场渔业资源科学观测试验站,浙江省海洋渔业资源可持续利用技术研究重点实验室,浙江舟山316021

出　　处：《浙江海洋大学学报（自然科学版）》2022年第5期455-458,共4页Journal of Zhejiang Ocean University：Natural Science

基　　金：国家重点研发计划“蓝色粮仓科技创新”重点专项(2019YFD0901204;2020YFD0900804);浙江重点研发计划(2019C2056);浙财农[2019]69号。

摘　　要：为探明浙江北部海域条石鲷标志放流回捕和移动分布情况,于2017-2018年采用挂牌标志开展条石鲷放流试验。依托标志回捕宣传册进行标志鱼有奖回捕,测量标志鱼体长、体质量,收集回捕日期、地点、方式等信息,整理分析相关数据。2次共放流标志条石鲷36482尾,共308尾回捕标志鱼被流刺网、垂钓、地笼和蟹笼捕获,回捕率为0.84%。流刺网回捕鱼数量占总回捕数量的比例为66.6%。通过对回捕信息的分析,发现回捕到的条石鲷均在岛礁附近,具有较强的恋礁习性。标志鱼最北移动到浪岗列岛,最南到宁波渔山列岛,放流附近海域占回捕总数量的85.4%。放流后30 d内标志条石鲷生长较慢,随后生长速度明显加快,75 d后,体长、体质量分别平均增长了59.2%和136.0%。In order to ascertain the mark-recapture and movement distribution of Oplegnathus fasciatus in the waters of northern Zhejiang,the release test of O.fasciatus was carried out by using scutcheon tag from year 2017 to 2018.Carry out reward recapture of marked fish by relying on the mark recapture brochure,measure body length and weight,collect recapture date,place,method and other information,and sort out and analyze relevant data.36482 marked O.fasciatus were released twice,and a total of 308 marked fish were recaptured by drift gill net,fishing,ground cage and crab cage,with a recapture rate of 0.84%.The number of gill net recapture accounted for 66.6%of the total recapture.Through the analysis of the recapture information,it is found that the recaptured O.fasciatus are all near the islands and reefs which have strong reef loving habits.The marker fish moved northernmost to Langgang Islands and southernmost to Ningbo Yushan Islands.The waters near the release accounted for 85.4%of the total recapture.Within 30 days after releasing,the growth of O.fasciatus was slow,and then the growth rate was significantly accelerated.After 75 days,the body length and body weight increased by 59.2%and 136.0%respectively.

关 键 词：条石鲷 标志回捕 移动分布 浙江北部海域 

分 类 号：S937[农业科学—渔业资源]