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黑水河下游前鳍高原鳅的繁殖特征
引用本文:杨 志,朱其广,徐 薇,龚 云,金 瑶,陈小娟,刘 红,唐会元.黑水河下游前鳍高原鳅的繁殖特征[J].水生态学杂志,2022,43(4):119-126.
作者姓名:杨 志  朱其广  徐 薇  龚 云  金 瑶  陈小娟  刘 红  唐会元
作者单位:水利部中国科学院水工程生态研究所,水利部中国科学院水工程生态研究所,水利部中国科学院水工程生态研究所,水利部中国科学院水工程生态研究所,水利部中国科学院水工程生态研究所,水利部中国科学院水工程生态研究所,华中农业大学水产学院,水利部中国科学院水工程生态研究所
基金项目:国家重点研发计划(2016YFC0502206),国家自然科学基金(51379134),中国三峡建设管理有限公司技术服务项目资助(合同号:JG/10917B)
摘    要:前鳍高原鳅Triplophysa anterodorsalis Zhu Cao, 1989是一种长江上游特有鱼类,其主要分布在金沙江下游水域。2014年1-12月在金沙江一级支流黑水河下游江段逐月采集样本,对其繁殖特征进行了研究。结果显示:前鳍高原鳅的性成熟个体在1-2月以及9-12月出现,其雌、雄个体的性成熟系数平均值均在12月份达到最大值;50%个体达到性成熟的全长分别为雌性72 mm,雄性78 mm;繁殖季节雌雄性比为0.98:1;平均卵径为0.64 mm,卵径分布呈单峰型;绝对繁殖力变动范围为1428-6356粒/尾,平均值为3834粒/尾;相对繁殖力变动范围为250-938粒/g,平均值为535粒/g;全长、体质量与绝对繁殖力呈二次项函数正相关;繁殖季节的水温变动范围为9.3-20.6 ℃,平均值为14.1 ℃。研究表明:前鳍高原鳅有明显的产卵集群情况,且其为一种均衡策略者鱼类。本文能够为前鳍高原鳅资源的保护,特别是为其全人工繁殖技术的实现提供基础数据支撑。

关 键 词:前鳍高原鳅    长江上游特有鱼类    性成熟系数    繁殖力    产卵集群
收稿时间:2020/11/30 0:00:00
修稿时间:2022/7/12 0:00:00

Reproductive Characteristics of Triplophysa anterodorsalis in the Lower Heishui River
YANG Zhi,ZHU Qi-guang,XU Wei,GONG Yun,JIN Yao,CHEN Xiao-juan,LIU Hong,TANG Hui-yuan.Reproductive Characteristics of Triplophysa anterodorsalis in the Lower Heishui River[J].Journal of Hydroecology,2022,43(4):119-126.
Authors:YANG Zhi  ZHU Qi-guang  XU Wei  GONG Yun  JIN Yao  CHEN Xiao-juan  LIU Hong  TANG Hui-yuan
Institution:Key Laboratory of Ecological Impacts of Hydraulic-projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources,Institute of Hydroecology,Ministry of Water Resources and Chinese Academy of Sciences,Wuhan,Key Laboratory of Ecological Impacts of Hydraulic-projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources,Institute of Hydroecology,Ministry of Water Resources and Chinese Academy of Sciences,Wuhan,Key Laboratory of Ecological Impacts of Hydraulic-projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources,Institute of Hydroecology,Ministry of Water Resources and Chinese Academy of Sciences,Wuhan,Key Laboratory of Ecological Impacts of Hydraulic-projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources,Institute of Hydroecology,Ministry of Water Resources and Chinese Academy of Sciences,Wuhan,Key Laboratory of Ecological Impacts of Hydraulic-projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources,Institute of Hydroecology,Ministry of Water Resources and Chinese Academy of Sciences,Wuhan,Key Laboratory of Ecological Impacts of Hydraulic-projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources,Institute of Hydroecology,Ministry of Water Resources and Chinese Academy of Sciences,Wuhan,College of Fisheries,Huazhong Agricultural University,Key Laboratory of Ecological Impacts of Hydraulic-projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources,Institute of Hydroecology,Ministry of Water Resources and Chinese Academy of Sciences,Wuhan
Abstract:
Keywords:Triplophysa anterodorsalis  Fish species that endemic to the upper reaches of the Yangtze River  Gonadosomatic index  Fecundity  Spawning aggregation  
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