黎水渔业，2017, 47 (2):. 63.-70 Freshwater Fisheries 2017年3月Mar.2017
滤波装置
李忠利，冉辉巴家文，.杨天友
(铜仁学院农林工程与规划学院，贵州铜仁554300)
摘要：2013年8 J f—2016年8 J f对驗扛水系支流翰扛餘鱼类螯滬现状进f J Y淘查。通过向渔M购买、现场捕撈 等方式，共调查野生鱼类《种，5f11科如厲，其中鲤科鱼类25种，f t总种类数的58.1=锡分调查到新 记录种5种，分别为大鱗副泥嫩（ParamisguTTWw cMryamw)、吻鲍（吻>1/5)、洞庭华駿（、云南盘鲍(■$)和大眼鳜（没吻erm h e r i)。干、支流均以底层鱼类为主，种类数分 别占各自总数的55.8%和71.4%。对比历史资料，G-F多样性指数呈下降趋势。对干流渔获物种类的周年统计 发现，出现频率在5〇%以上的鱼类有8种，其中泥錄(rngwi/ZicaMctow)、趣（Cyprimw ca/p io)、卿（Car-(m r a to)和钻（SiZimw似况似）的出现频率均达到97. 3%。 关键词：锦江；鱼类资源；现状；多样性
中图分类号：S932.4 文献标识码：A文章编号：1000名907-(2017)02-0063-05
The present status and diversity of fish resources in Jinjiang River
L I Z hong-li,R AN Hui,BA Jia-wen,YANG Tian-you
(C o llege o f A groforestry E n gin eerin g a n d P la n n in g, T ongren U niversity，T ongren554300, G uizhou, C hin a)长效连续捕鼠器
Abstract ：The Jinjiang River is situated in the southeast of Guizhou, China and belongs to Dongting Lake water system. In order to analyze the present status and diversity characteristics of present wild fish resources, the field investigation took place from August 2013 to August 2016, and the fishes were collected from fishermen and live fishing. The results showed 43 species distributed in the river, which belonging to 5 orders, 11 families and 43 genera. The fishes of Cyprinidae were dominant in the river, with the number of 25 species, and the percentage of 58. 1%. And five species were first found, which were P aram isgu rn u s d a b ry a n u s, R h in ogob io typus 9S in ila b eo tu n g tin g, D iscogob io yu n n a n en sis and S in iperca kneri. The major group in the main stream and tributary were demersal fishes，with the percentage of 55. 8% and 71. 4% respectively. Compared with the historical data, there was a decreasing tendency for the diversity index of genus - family level. An annual statistics of fishery catches from the main stream discovered that the occurrence frequency of 8 species were more than 50%，of which the wild fish M isgurnus a n g u illica u d a tu s, C yprinus ca r p io, C arassius auratus and S ilurus asotus reached 97. 3% , and the 消音片
percentage of Cypriniformes was 75. 0%.
Key words：Jinjiang River；fish resources；present status；diversity
逢类物种的多样性是鱼类多样牲的要素之一，既体现了鱼类资源的多样性，又反映了鱼类之间及鱼类与环境之间的复杂关系。长江流域地形地貌复杂，支流水系众多，整个流域鱼类资源十分丰富，种类数多、资源量大，特有鱼类也体现出多样性特点》然而从上个世纪下半叶以来，受环境污染、水利水电工程建设、酷渔滥捕等的影响，长江鱼类资
收稿日期：2.0164)9-23；修订日期：.2017-01-17源呈衰退趋势[B i，因此调查长江流域：干流、支流前鱼类资源，准确地掌握当前鱼类的资源现状，对于合理保护和利用地方性野生鱼类资源起着重要的指导作用。
锦江位于贵州省东北部铜仁市境内，隶属长江中游，是洞庭湖水系沅江支流辰水的上源。该河流发源子武陵山脉主峰，即国家级自然保护区梵净山二钼酸铵
反垃圾邮箱资助项目：潇績省科胃联合_须目（黔科合：U I字[201C7482 );.铜仁獻建鐵霧环臟保护模蒗城市办.公室项目(:'T»mM6 _6 ^贵省普通高等学校工程.建燃■目1黔教合KYI20聰02|号）
第_作者简介：李忠利.(19.82-),.舅，.墩^51研究靠囪为鱼类％隹藥3丑-.1»^.1:12丨1982505@163.(;_
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