渔业资源增殖放流效果评估方法的研究  

Study on the method for assessment of enhancement effect of fishery stock

作　　者：陈丕茂[1] 

机构地区：[1]中国水产科学研究院南海水产研究所,广东广州510300

出　　处：《南方水产》2006年第1期1-4,共4页South China Fisheries Science

基　　金：广东省海洋与渔业局项目"广东省渔业资源增殖放流效果跟踪监测评估和标志放流研究";"广东省人工鱼礁本底与跟踪调查";"广东省渔业资源调查与跟踪分析";"广东近岸海域渔业资源及其生态环境动态评估";国家科技部社会公益研究专项资金项目(2004D1B3J098);国家科技基础条件平台工作重点项目(2003DEA6N042)

摘　　要：依据渔业资源评估原理,结合渔业资源增殖放流的特点,提出一套计算群体生物统计量进而评估渔业资源增殖放流效果的方法。选用渔业资源评估模型,估算未建立生长方程的增殖放流种类的生长参数及其自然死亡系数,以及增殖放流种类的合理放流数量。提出确认渔获物中来自放流种苗数量的方法。推导了计算捕捞死亡系数和按时间序列计算放流群体残存量、回捕量、回捕率和回捕效益等的公式。Based on the theory of fishery resources assessment and the characteristics of fishery stock enhancement and releasing, the method was put forward to assess the enhancement effect of fishery stock by calculating the biological statistics amount of population. The growth parameters and natural mortality coefficients of the enhancement species that hadn＇t been built the growth equations were estimated and the suitable enhancement amounts of all enhancement species were estimated by choosing the suitable model of fishery stock assessment. The method to confirm the recapture amount from the enhancement seedlings of the total catch was pointed out. The formulas to estimate the fishing mortality coefficient, and the surplus amount, the recapture amount, the recapture rate as well as the recapture benefit from the enhancement population by the time series were developed.

关 键 词：方法 群体生物统计量 增殖放流效果 评估 

分 类 号：S931.5[农业科学—渔业资源] S932[农业科学—水产科学]