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长江湖北新螺江段长江江豚数量、分布和活动的研究
Authors
张新桥
熊远辉
Publication date
1 January 2011
Publisher
Abstract
在物种保护实践中,对濒危物种的生态及行为进行监测至关重要。长江新螺段白鱀豚国家级自然保护区是长江江豚仅有的3个国家级原地保护区之一,然而较系统的监测至今还未见报道。2001年7月~2003年6月,采取常年监测与临时重点监测相结合,定点监测与流动监测相结合的方式对该保护区内长江江豚的种群数量、分布、活动规律及栖息地选择等作了研究,并提出了相应的保护建议。结果显示,保护区可能有长江江豚50~64头,多以2~3头为群生活,主要集中在沿岸浅水区;动物集群出现在3~6月,次数和规模远不如20a前;长江江豚的集群和栖息地选择可能与觅食、休息和交配繁殖有关。建议控制过往船只速度,打击非法渔业,对近岸区要加强监测力度,尤其是在交配繁殖季节,对江豚活动频繁的团洲站、土地洲站、龙口站和腰口站要重点监测保护
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Institute of Hydrobiology, Chinese Academy Of Sciences
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oai:ir.ihb.ac.cn:342005/42099
Last time updated on 23/01/2021