论文部分内容阅读
目前,人工增殖已成为重建和恢复珍稀濒危物种种群的重要手段,并在全国得到广泛实施。1983年以来,农业部组织放流中华鲟600多万尾,逐步重建中华鲟长江、珠江、闽江和近海种群,同时对大规格的中华鲟进行标志放流,效果显著;黑龙江省也在黑龙江组织放流施氏鲟、达氏鳇780余万尾;广?
At present, artificial propagation has become an important means of rebuilding and restoring the rare and endangered species population, and has been widely implemented throughout the country. Since 1983, the Ministry of Agriculture has organized more than 6 million Chinese sturgeons to be discharged and gradually rebuilt the populations of the Yangtze River, Pearl River, Minjiang River and offshore sea of Chinese sturgeon, and marked the release of large sturgeon sturgeon with remarkable results. Heilongjiang Province also organized discharge in Heilongjiang Province Sturgeon, up to more than 780 million Daphnia; Canton?