检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:张人铭[1] 郭焱[1] 马燕武[1] 吐尔逊[1]
机构地区:[1]新疆维吾尔自治区水产科学研究所,乌鲁木齐830000
出 处:《淡水渔业》2007年第6期76-78,共3页Freshwater Fisheries
基 金:新疆维吾尔自治区自然科学基金(200521105)
摘 要:于2003~2006年在新疆塔里木河水系调查了塔里木裂腹鱼(Schizothorax biddulphi Gunther)的分布和资源现状。结果表明:塔里木裂腹鱼在流域内各主要河流均有分布;分布范围较广,但分布区域缩小;栖息环境条件恶劣,水温低,饵料少;主要种群分布在海拔1000~3300m区域;个体低龄化,种群数量占土著鱼类的比例小。水利工程、过度捕捞、引入外来物种和生态环境恶化等因素已对该鱼资源造成严重破坏。Resource and distribution of Schizothorax biddulphi Gtinther in the Talimo River was surveyed from 2003 to 2006. The result showed that: the fish distributed in all major rivers, but the distribution region became narrow. The habitats were bad, such as low water temperature and less food. The altitude of distribution regions was mainly from 1000 m to 3300 m. All populations of S. biddulphi were low-aged, and the proportions of the indigenous fish were small. The factors such as water conservancy facilities,over fishing,introduction of living things had caused huge destruction to the fish's survival.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.51