长江口及邻近水域渔业资源监测现状分析

长江口及邻近水域是我国多种重要鱼类产卵、索饵、育肥的优良场所和洄游通道,对于该水域渔业资源进行有效监测是开展资源评估和养护的基础.以渔业资源监测的4种常见途径,即注册制度、问卷调查及访问调查、直接监测和报告制度为框架,对照总结了这一水域各种监测项目的发展水平和缺陷,特别针对依赖于渔业的调查和独立于渔业的调查,详细分析了渔业观察员项目、科考船、采样调查设计、渔业声学调查、标志放流、鱼卵仔稚鱼调查等环节的发展现状.在此基础上对现有监测项目的发展完善提出改进建议,旨在为该水域后续建立科学合理的渔业资源监测体系积累基础参考资料.

A Review of the Development of Fishery Resources Monitoring in the Yangtze River Estuary and Its Adjacent Waters

The Yangtze River estuary and its adjacent waters are important ground for spawning, feeding and growth and migratory path for many fish species in the coast of China, and effective monitoring on fishery resources in this area is the basis for stock assessment and resource conservation. Based on the four common approaches to fisheries monitoring framework, i.e. registration, questionnaires/interviews, direct observations and reporting, the development and deficiencies of various monitoring programmes in this waters were reviewed in this paper. In particular, for the fisheries-dependent and independent surveys, the level of fisheries observers, research vessels, sampling designs, acoustic survey, mark-recapture methods, eggs and juvenile surveys were reviewed in detail. Finally, some suggestions were raised for the improvement of current monitoring projects in order to provide the fundamental information for establishing a reasonable and reliable fisheries monitoring system in Yangtze River estuary in the future.