应用弹式卫星数据回收标志技术研究放流中华鲟幼鱼在海洋中的迁移与分布

摘要

Application of Pop-up Archival Tag (PAT) to research of migration and distribution of Chinese sturgeon (Acipenser sinensis) in the ocean was presented in this paper. In 2006 and 2008, 14 individual fish tagged with PAT were released to Yangtze Estuary, including 6 3-year-old individuals and 8 9-year-old individuals, respectively.The data from 9 tagged fish were successfully transmitted and received by ARGOS satellite and the rate for data recovery amounted to 64％. Results revealed that Chinese sturgeon tagged with PAT would migrate to sea within one month after being released. The tagged fish can survive for more than 6 months, and they distributed in the continental shelf from western Korean coast in the north to Fujian coastal areas in the south. The migration range spanned 4° longitude and 9° latitude. The longest distance of the fish migration amounted to 697 km. The migration pattern of Chinese sturgeon was random and circuitous. The results showed that releasing of fish tagged with PAT was successful. [Journal of Fishery Sciences of China, 2011, 18(2): 437-442]%于2006年和2008年,向长江口放流了14尾携带弹出式卫星数据回收标志(Pop-up Archival Tag,PAT)的中华鲟(Acipenser sinensis Gray)幼鱼,其中3龄和9龄中华鲟各6尾和8尾.放流后有9枚标志数据成功上传至ARGOS卫星,标志信息回收率达到64%.初步结果表明,中华鲟幼鱼放流后1个月内即进人海洋生活.进入海洋的中华鲟幼鱼在最长监测期的6个月内正常存活,分布于北起朝鲜西海岸,南至中国福建沿海的经度跨度为4°、纬度跨度为9°的沿海大陆架海域,最大徊游距离达到697 km.放流的中华鲟幼鱼呈现随意、迁曲的徊游特征.本实验结果初步证明了中华鲟PA7,标志放流取得成功.