| 摘要: |
| 大刺鳅（Mastacembelus armatus）主要分布于我国南方各大水系，现阶段野生资源急剧减少，已被福建、广东、湖南等省列为重点保护野生水生动物。为了解赣南地区大刺鳅在主要分布水域桃江和九曲河中的资源状况，于2020年夏季对该水域鱼类和大刺鳅资源状况进行了调查，共采集鱼类34种隶属于4目11科31属。调查结果显示：所有样点本土鱼类中黄颡鱼（Pelteobagrus fulvidraco）、大刺鳅、鲫（Carassius auratus）为优势物种，桃江中外来物种莫桑比克罗非鱼（Oreochromis mossambicus）占主要优势；随着水利工程建设、外来物种入侵、栖息生境破坏及过度捕捞，大刺鳅资源量呈显著下降趋势。调查分析表明，修复自然河流生境，恢复洄游通道；增强本土物种保护意识，加强外来物种治理；严格禁捕，科学增殖放流对大刺鳅资源保护具有重要意义。 |
| 关键词: 大刺鳅 资源状况 桃江 九曲河 调查 |
| DOI：10.14188/j.ajsh.2022.05.003 |
| 分类号:Q959.4 |
| 基金项目:江西省重点研发计划项目（20171ACF60012）；赣市科发［2019］27号；赣州市2020年柔性引进人才项目 |
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| Resource status evaluation of the zig-zag eel （Mastacembelus armatus） in Taojiang River and Jiuqu River in southern Jiangxi in summer |
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ZENG Zeguo1,3, WANG Haihua2, LU Xinmin4, ZENG Qingxiang1, GUO Jing1, LIU Deting1, CAI Zhihuan4, GUO Qin1, LI Yanhua2, JIN Binsong5
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1.Ganzhou Animal Husbandry and Fisheries Research Institute， Ganzhou 341000， Jiangxi， China;2.Fisheries Research Institute of Jiangxi Province， Nanchang 330000， Jiangxi， China;3.Agricultural Technology Promotion Center of Deqing County， Huzhou 313200， Zhejiang， China;4.Agricultural and Rural Bureau of Ganzhou， Ganzhou 341000， Jiangxi， China;5.School of Life and Environmental Science， Hangzhou Normal University， Hangzhou 311121， Zhejiang， China
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| Abstract: |
| Mastacembelus armatus is widely distributed in the river systems in the south of China. Due to the dramatic decline in the number， the wild Mastacembelus armatus has been listed as a provincial-level protected aquatic animal by Fujian， Guangdong and Hunan provinces.In order to understand the resource status of zig-zag eel （Mastacembelus armatus） in the nature waters， a survey was conducted in the summer of 2020 in the Taojiang River and the Jiuqu River， the main distribution waters of the zig-zag eel. A total of 34 species of fishes belonging to 4 orders， 11 families and 31 genera were collected. In all the sampling sites among the native fishes， Pelteobagrus fulvidraco， zig-zag eel， and Carassius auratus are the dominant species； Tilapia （Oreochromis mossambicus）， an exotic species， is dominant in Taojiang River. Due to the construction of hydraulic projects， invasion of exotic species and habitat destruction and overfishing， the resource amount of zig-zag eel shows a significant downward trend. Targeted proposals for the protection of zig-zag eel resources： restoration of natural river habitats， restoration of migratory channels， enhancing the awareness of native species protection and strengthening the management of alien species， strictly prohibiting fishing and scientific enhancement and releasing. |
| Key words: Mastacembelus armatus resource status Taojiang River Jiuqu River survey |
