| 金沙江下游鱼类资源现状研究 |
| Studies on Status of Fishery Resources in the lower reaches of the Jinsha River |
| 投稿时间：2012-04-19 修订日期：2012-04-19 |
| DOI： |
| 中文关键词:鱼类资源 调查 金沙江下游 |
| 英文关键词:fishery resources,survey,the lower reaches of the Jinsha River |
| 基金项目:水利部经常性专项业务经费项目“长江流域水资源管理”（项目编码1260902502）、中国长江三峡集团公司长江上游珍稀特有鱼类及保护区措施补偿项目“水生生态环境监测”（合同编号：BHQ2008-06，BHQ2011-06）、“岩原鲤等二十一种长江上游特有鱼类生物学、种群动态及遗传多样性研究”（合同编号：TYY2011-02）资助。 |
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| 中文摘要: |
| 2008-2011年对金沙江下游干流进行了6次鱼类资源调查,共设5个采样点,每次调查时间为1-2个月。共计采集到鱼类6目、16科、52属、78种,圆口铜鱼(Coreius guichenoti)、南方鲇(Silurus meridionalis)、鲤[Cyprinus(Cyprinus)carpio]、瓦氏黄颡鱼(Pelteobagrus vachelli)、长鳍吻鮈(Rhinogobio ventralis)、歺又鱼(Hemiculter leucisculus)、鲇(Silurus asotus)、短须裂腹鱼[Schizothorax(Schizothorax)wangchiachii]、蛇鮈(Saurogobio dabryi)和中华倒刺鲃(Spinibarbus sinensis)为金沙江下游渔获物主要种类,不同江段的渔获物组成存在差异。渔获物平均尾重达到50g的种类仅13种,且多数种类的起捕规格小于10g,部分甚至小于1.0g,渔获个体以1～3龄鱼为主,大部分未达到性成熟年龄,渔获物小型化、低龄化现象明显,鱼类资源呈衰退趋势。 |
| 英文摘要: |
| Surveys of fishery resources were carried out at five stations in the mainstream of lower Jinsha River for six times from 2008 to 2011.Every survey lasted for one to two months. The survey results indicated that a total of 78 fish species，belonging to 6 orders，16 families and 52 genera were collected from the mainstream of the lower Jinsha River. The catch was dominated by the following ten species: Coreius guichenoti , Silurus meridionalis，Cyprinus (Cyprinus) carpio , Pelteobagrus vachelli , Rhinogobio ventralis，Silurus asotus，Hemiculter Leucisculus，Schizotho-rax(Schizothorax ) wangchiachii , Saurogobio dabryi and Spinibarbus sinensis. There were differences in the composition of catches among different sections of the river. Only 13 species' average weights were more than 50g . Weights of most species of the catches were less than 10g . Some species' weights even were less than 1 g . Most species of the catches were 1一3 years old. The fishery resources in the mainstream of the lower Jinsha River showed an obvious decline.
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| 高少波,唐会元,乔 晔,杨 志,陈金生 .2013.金沙江下游鱼类资源现状研究[J].水生态学杂志,34(1):44-49. |
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