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2010～2013年,在厦门九龙江口共标志放流了258尾4～12龄中华鲟(全长142～210 cm),其中13尾个体使用了弹出式卫星档案标志(MK 10-PAT).放流后共收集到21尾个体误捕信息以及10尾卫星标志个体的迁移和分布位点信息,结果显示,中华鲟分布位点主要位于中国沿海大陆架水域,集中分布位点为厦门至舟山群岛之间的近海区.除3尾个体离岸距离为350,41和29 km外,其余个体与海岸线距离均在15 km范围内;从分布纬度来看,向南迁移的纬度范围为1.366°,到达南海海域,向北最远迁移的纬度范围为14.539°,到达朝鲜东部海域,纬度跨度为15.905°.沿大陆架的直线迁移距离和速度分别为449/378 km(卫星标志/回捕个体,范围=11～2205/3～1488 km)和0.18/0.18 km/h(卫星标志/回捕个体,范围=0.03～0.73/0.02～1.07 km/h),卫星遥测中华鲟与回捕中华鲟的迁移速度和迁移距离均没有显著性差异.1尾卫星标志中华鲟的详细迁移监测结果表明,该尾鱼放流后134 d共完成了2205 km距离的迁移,平均迁移速度为0.52 km/h(范围=0.23～7.53 km/h).中华鲟的栖息水温和栖息水深分别为22.8℃(范围=17.2℃～29.5℃)和22.19 m(范围=11.25～32.25 m).中华鲟的海区迁移和分布与水温、盐度、水深和饵料等环境因素有关.研究结果有助于弄清中华鲟在海区的空间分布特征和迁移速度,为后期深入研究中华鲟在海区的生境选择特征提供有价值的数据,也为该物种的海洋保护和管理提供理论依据.
From 2010 to 2013, 258 sturgeon 4 to 12-year-old Chinese sturgeons (total length 142-210 cm) were released at the Xiamen Jiulong River Estuary mark, of which 13 individuals used pop-up satellite archives (MK 10-PAT) A total of 21 individuals were collected and information on the miscarriage of 10 individuals and the information on the distribution and distribution of 10 satellite individuals were obtained. The results showed that the distribution of the Chinese sturgeon was mainly located in the waters of the continental shelf in the coastal area of China. The distribution was concentrated between Xiamen and Zhoushan archipelago In the offshore area, all the individuals except the 3 individuals were 350, 41 and 29 km away from the coastline within a distance of 15 km. From the latitude of the distribution, the latitudinal migration to the south ranged from 1.366 ° to reach the South China Sea , The latitude range of 14.539 ° to the north and the latitude span of 15.905 ° reach the east of North Korea.The linear migration distances and velocities along the continental shelf are respectively 449/378 km (satellites / catch individuals, range = 11 ~ (Satellites / trapped individuals ranged from 0.03 to 0.73 / 0.02 to 1.07 km / h), and the rate of migration and migration of Chinese sturgeon There is no significant difference between the distance .1 tail satellite flag Chinese sturgeon details The monitoring results showed that the tail fish migrated at a distance of 2205 km after 134 days of discharge, with an average migration rate of 0.52 km / h (range = 0.23 ~ 7.53 km / h). The habitat water temperature and habitat depth of the Chinese sturgeon were 22.8 ℃ (range = 17.2 ℃ ~ 29.5 ℃) and 22.19 m (range = 11.25 ~ 32.25 m) .The sea area migration and distribution of the Chinese sturgeons were related to environmental factors such as water temperature, salinity, water depth and food, The spatial distribution and migration speed of Chinese sturgeons in the sea area provide valuable data for in-depth study on the habitat selection characteristics of Chinese sturgeons in the sea area and provide theoretical basis for the marine protection and management of this species.