史氏鲟、达氏鳇的资源现状与研究进展

史氏鲟（Acipenser schrencki)，达氏鳇（Huso dauricus)属鲟科鱼类，是黑龙江的主要经济鱼类之一。由于近年来过度捕捞，资源遭到一定程度的破坏。本主要通过对黑龙江某江段上的捕捞生产调查统计，评估其现有资源状况，并提出了五个方面的建议。同时介绍了我国目前对鲟鱼研究方面的进展情况。1957年黑龙江水产研究所成功地进行了史氏鲟的人工繁殖试验，以后除了五十年代和七十年代的一些调查工作外，基本上中断了对这条鱼的人工繁殖试验工作。1989年，黑龙江省国营农场总局在勤得利农场建立了第一个史氏鲟放流试验站，当年就进行了人工繁殖和放流工作。四年中，向黑龙江放流鲟鱼苗累计达107万尾。在此期间有关的科研和生产单位利用这一条件开展对鲟鱼的研究，本还介绍了正在进行的“史氏鲟活体取卵手术技术研究”、“鲟幼鱼人工饲料研究”和“人工养殖技术研究”等。

The Present Resource Situation and Study Advance of Amur Sturgeon (A .schrencki)and Huso Sturgeon (Huso dauricus)

Amur sturgeon aam Huso sturgeon beloog to sturgeon and large,long-lived fishes,They are also important economic fishes in Heilongjiang river.But because of overfishing in the last few yesrs, their resource hace been vilated seriously. This Paper assesses the condition of resent resource accoding to investigation and statistics of the fishing production in some section of Heilongjiang river, And also raise five suggestion about increasing the resource of the sturgeons in Heilongjiang river.the first success of the artificial reproduction on Amur sturgeon was mat by Heilongjiang River Fishery Research Institute in 1957, But there had been no styding sturgeon for 30 years,until 1987, the firsi Amur sturgeon experimental station was built by Heilongjiang provided Farm Bureau on Qindeli Farm,the work of artificial reproduction aam releasing of sturgeons restarted.About 1.07millionof Amur sturgeon fry have been released into Heilongjiang river since the station was built. This is a important breakthrough of sturgeons artificial propagation.The paper also introdduces some situation of studing advance on sturgeons at present e,g,surgical operation technique for geting eggs from living sturgeon and artificial breding Amur sturgeon