| 黑水河下游前鳍高原鳅的繁殖特征 |
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| 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 |
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| 作者姓名： | 杨 志 朱其广 徐 薇 龚 云 金 瑶 陈小娟 刘 红 唐会元 |
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| 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 |
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| 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) |
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| 摘 要： | 为了解长江上游特有鱼类前鳍高原鳅(Triplophysa anterodorsalis)的繁殖特征，于2014年1-12月在金沙江一级支流黑水河下游江段对前鳍高原鳅进行逐月采样，并采用数理统计学方法对其性腺发育与性成熟系数的周年变化、繁殖群体组成、卵径分布、繁殖力、产卵水温和繁殖集群等进行了研究。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月达到最大值；50%雌、雄个体达到性成熟的全长分别为72 mm、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；绝对繁殖力为1 428～6 356粒，均值为3 834粒；相对繁殖力为250～938粒/g，均值为535粒/g；全长、体重与绝对繁殖力呈二次项函数正相关；繁殖季节水温为9.3～20.6℃，均值为14.1℃；前鳍高原鳅有明显的产卵集群现象。研究结果可为前鳍高原鳅资源保护及其全人工繁殖技术提供基础数据支撑。
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| 关 键 词： | 前鳍高原鳅 性成熟系数 繁殖力 产卵集群 黑水河 |
| 收稿时间： | 2020-11-30 |
| 修稿时间： | 2022-07-12 |
Reproductive Characteristics of Triplophysa anterodorsalis in the Lower Heishui River |
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| 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 |
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| Authors: | YANG Zhi ZHU Qi-guang XU Wei GONG Yun JIN Yao CHEN Xiao-juan LIU Hong TANG Hui-yuan |
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| Affiliation: | 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 |
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| Abstract: | |
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| Keywords: | Triplophysa anterodorsalis Fish species that endemic to the upper reaches of the Yangtze River Gonadosomatic index Fecundity Spawning aggregation. |
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