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秦岭黑河沙梁子渔洞发现野生大鲵幼苗,依据该地的研究简史、现今捞苗记录和水质测量结果,同宁陕县龙泉大鲵养殖场(有多年成功繁苗记录)的泉水水质及丹凤县武关河老林沟大鲵原生区溪流水水质进行了综合分析,进一步明确了大鲵自然产苗点的生态要素。流域区内和产苗点的地貌、植被、基岩、洞穴、径流量、水质、水生生物间的食物链关系,水温、气温的季节性变化等条件,对大鲵出苗均有关联作用。指出大鲵自然产苗区环境保护的必要性及创建大鲵人工繁苗生态工程的重要性。
According to the brief history of the study, records of fishing and seedling raising and water quality measurement results of the same time, the same spring water quality and Danfeng of Longquan large-breed farms in Ning Shan County (which have many years of successful records of seedlings) A comprehensive analysis was made on the water quality of the streams in the Laoluogou Dacha area of Wuwei River, which further clarified the ecological elements of the natural seedlings of the Dalang. The conditions of the landform, vegetation, bedrock, caves, runoff, water quality, food chain relationship among aquatic organisms, and the seasonal changes of water temperature and temperature in the basin area and the seedling emergence point are all related to the emergence of the bighead shoot. The necessity of environmental protection in the natural seedling raising area of Dazhu and the importance of creating the ecological engineering of Dazao artificial seedling and seedling are pointed out.