摘要
赤水河是长江上游右岸一级支流,为长江上游珍稀特有鱼类国家级自然保护区的重要组成部分。为了了解赤水河鱼类资源现状,于2007年4-10月在赤水河流域进行了鱼类资源调查。在干、支流共51个采样点采集了鱼类标本;对茅台镇、赤水市和合江县三个江段的渔获物进行了统计和分析。共采集到鱼类119种(亚种),隶属于5目16科75属。其中25种为该水域的新记录;34种为长江上游特有鱼类,尤其是宽唇华缨鱼(Sinocrossocheilus labiatus)仅分布于赤水河。在上、中、下游分别采集到鱼类36、61和100种。宽鳍鱲(Zacco platypus)、中华倒刺鲃(Spinibarbus sinensis)、光泽黄颡鱼(Pelteobagrus nitidus)、张氏(Hemiculter tchangi)和蛇鮈(Saurogobio dabryi)为赤水河中主要的经济鱼类,同时,各江段渔获物的组成也存在一定的差别。本研究表明,赤水河流域鱼类种类相对丰富,但过度捕捞和涉水活动导致鱼类资源出现了一定程度的衰减。
The Chishui River is an important part of the Rare and Endemic Fishes Nature Reserve in the upper reaches of the Yangtze River.We surveyed the Chishui River between April and October of 2007 to assess the current status of fish assemblages it contains.We sampled 51 sites in the river basin and identified a total of 119 species belonging to 5 orders, 16 families and 75 genera.Among them, 25 species were new records for the Chishui River basin and 34 species were endemic to the upper reaches of the Yangtze River.Sinocrossocheilus labiatus was present only in the Chishui River.There were 36, 61 and 100 fish species found in the upper, middle and lower reaches of the river, respectively.Zacco platypus, Spinibarbus sinensis, Pelteobagrus nitidus, Hemiculter tchangi and Saurogobio dabryi were the main commercially-important species captured of the Chishui River, but the components of fishery catches varied significantly among reaches.We offer recommendations for the protection of the diminishing fish resources of the Chishui River.
出处
《生物多样性》
CAS
CSCD
北大核心
2010年第2期162-168,共7页
Biodiversity Science
基金
赤水河水域生态和水生生物调查(071Z13)
保护区特有鱼类监测(084106)
关键词
长江
赤水河
保护区
鱼类资源
Yangtze River
Chishui River
protected area
fish resource
