我国鲟类资源状况及保护利用

利用渔获物统计法对我国鲟鱼主产区黑龙江、长江鲟类十几年的捕获物进行研究。研究发现：由于人为酷捕滥捞、环境污染，黑龙江鲟鱼种群结构严重失衡、资源急剧下降（452t,1987年，120t,1999年）；由于长江葛洲坝截流，阻隔长江鲟鱼类的洄游，致使长江的中华鲟性比失调（♀：♂=1：0.39，1996年-1998年），雄性补充群体严重不足，繁殖种群退化，中华鲟岌岌可危。白鲟和达氏鲟现已濒临绝迹。本文叙述了我国鲟鱼的保护和利用现状及今后应采取的措施；并对我国鲟鱼利用途径进行了探讨。

The resources, protection and utilization of sturgeons in China

The fish catch statistics is adopted to research on the sturgeon harvests in the Amur River and the Yangtze River, which are main fishing areas of sturgeons. It is found that the population structure of Amur River sturgeons is unbalanced and the resources are precipitated (452t, 1987: 120t, 1999), because of the severe fishing and environmental pollution; that as Gezhou dam blocked the migrating route of Chinese sturgeon in Yangtze River, sex ratio is out of proportion (f: m = 1 : 0. 39, 1996 - 1998) of Chinese sturgeon, male supplement population is insufficient, reproduction population is degraded; that Chinese sturgeon is endangered and the trace of Dabry sturgeon and Chinses paddlefish is hard to find. The paper describes the current situation of protection and utilization of sturgeons in China and suggests measures to be adopted, and further discusses the way of utilization on sturgeon.