西洞庭湖银鱼资源及动态变化调查  

Current status and protection of whitebait resources in the West Dongting Lake

作　　者：彭平波 谢志辉 曾益波 何木盈 曾伟坤 徐清明 曾庆文 王忠锁[2] PENG Pingbo;XIE Zhihui;ZENG Yibo;HE Muying;ZENG Weikun;XU Qingming;ZENG Qinwen;WANG Zhongsuo(Hunan West Dongting Lake National Nature Reserve,Hanshou 415900,Hunan,China;Capital Normal University,Haidian 100089,Beijing,China)

机构地区：[1]湖南西洞庭湖国家级自然保护区管理局,湖南汉寿415900 [2]首都师范大学,北京海淀100089

出　　处：《湖南林业科技》2021年第2期69-73,共5页Hunan Forestry Science & Technology

基　　金：湖南省林业科技创新专项(XLK201963)。

摘　　要：为掌握西洞庭湖银鱼资源变化,分别于2006年、2007年、2018年、2019年对西洞庭湖银鱼资源开展调查,共记录到4种银鱼,分别是太湖短吻银鱼、寡齿短吻银鱼、长江银鱼和大银鱼。研究表明,西洞庭湖银鱼在物种资源数量上为太湖短吻银鱼>寡齿短吻银鱼>长江银鱼>大银鱼;在年际变化上,2018-2019年银鱼资源量大于2006-2007年银鱼资源量,并呈现逐年减少趋势,2019年较2006年减少42.18%左右,并且在2018-2019年调查中未记录到大银鱼。4个季度中夏季银鱼数量最多,春季、秋季次之,冬季最少。In the 2006-2007 survey of silverfish resources in West Dongting Lake,a total of four species of whitebait were investigated,such as Taihu whitebait(Neosalanx tangkahkeii),oligodental whitebait(Neosalanx oligodontis),Yangtze River whitebait(Hemisalanx brachyrostralis),and large whitebait(Protosalanx hyalocranius).Studies have shown that the amount of species resources of whitebait in West Dongting Lake Taihu whitebait>oligodental whitebait>Yangtze River whitebait>large whitebait.In terms of inter-annual changes,the amount of whitebait resources in 2018-2019 was higher than that in 2006-2007,which was shown as a declining trend year by year.In 2019,it was decreased by about 42.18%compared with 2006.In the 2018-2019 survey,no whitebait was recorded.In the four seasons,the amount of whitebait was highest in summer,followed by spring and autumn,and lowest in winter.

关 键 词：西洞庭湖 银鱼资源 动态变化 

分 类 号：S965.224[农业科学—水产养殖]