摘要
2003年7月~2004年5月和2007年8月~2008年9月,对湖南壶瓶山国家级自然保护区鱼类资源进行了调查与监测。研究结果显示:保护区内及周边社区的人为活动对该区鱼类多样性有较大的影响;2008年该保护区记录到鱼类41种,与2004年的调查结果相比,有10种鱼未发现,且鱼类个体均重小于20 g的有22种(占53.66%)。这表明该区鱼类群落结构变化较大,小型化趋势明显,鱼类资源正面临着较为严重的危机,这是由不合理的鱼类资源利用方式、水域生态环境变化等多种因素造成的。为此,作者提出了如下保护对策:加大保护宣教力度、加强执法和法制建设、实施生态修复工程、恢复土著鱼类资源、开展鱼类资源保护与监测。
Fish resources in Hupingshan National Nature Reserve was surveyed in July 2003 to May 2004 and August 2007 to September 2008,respectively.Changes were obvious.10 species of fish were disappeared;in 2008 only 41 species were recorded. Body weights of 22 species of fish(53.66%) were less than 20 g,indicating that fish resources were in serious crisis, due to unreasonable use and changes in ecology in water environment.Protective measures were discussed.