浙江农业学报 ›› 2025, Vol. 37 ›› Issue (2): 278-287.DOI: 10.3969/j.issn.1004-1524.20240145

• 动物科学 • 上一篇    下一篇

钱塘江唐家洲产卵场仔稚鱼的资源现状及其与环境因子的关系

鲁一平1(), 练青平2, 郭爱环2, 罗凯1, 许巧情1,*(), 原居林2,*()   

  1. 1.长江大学 动物科学技术学院,湖北 荆州 434025
    2.浙江省淡水水产研究所,农业农村部淡水渔业健康养殖重点实验室,浙江省淡水水产遗传育种重点实验室,浙江 湖州 313001
  • 收稿日期:2024-02-18 出版日期:2025-02-25 发布日期:2025-03-20
  • 作者简介:原居林,E-mail: yuanjulin1982@126.com
    许巧情,E-mail: xuqiaoqing@yangtzeu.edu.cn;
    鲁一平(2000—),男,湖南永州人,硕士研究生,研究方向为渔业资源生态学。E-mail:1875471138@qq.com
  • 通讯作者: 许巧情,原居林
  • 基金资助:
    浙江省财政专项(2022CZZX001);浙江省财政专项(2023CZZX001);农业农村部淡水渔业健康养殖重点实验室开放项目(ZJK202312)

Current status of juvenile fish resources in Tangjiazhou spawning ground of Qiantang River and their relationship with environmental factors

LU Yiping1(), LIAN Qingping2, GUO Aihuan2, LUO Kai1, XU Qiaoqing1,*(), YUAN Julin2,*()   

  1. 1. College of Animal Science and Technology, Yangtze University, Jingzhou 434025, Hubei, China
    2. Key Laboratory of Healthy Freshwater Fishery Aquaculture of Ministry of Agriculture and Rural Affairs, Zhejiang Provincial Key Laboratory of Freshwater Aquatic Genetics and Breeding,Zhejiang Institute of Freshwater Fisheries, Huzhou 313001, Zhejiang, China
  • Received:2024-02-18 Online:2025-02-25 Published:2025-03-20
  • Contact: XU Qiaoqing,YUAN Julin

摘要:

为了解钱塘江下游唐家洲产卵场仔稚鱼的资源现状,2022年4—6月对唐家洲产卵场的仔稚鱼资源进行监测,分析仔稚鱼种类组成、生态类型、丰度时间变化和群落特征,解析仔稚鱼群落特征与主要环境因子的关系,以期为钱塘江鱼类资源的保护与利用提供数据支撑。本次调查共采集到仔稚鱼1 191尾,经鉴定,隶属于2目2科17种,其中,优势种5种,常见种1种。调查期间,仔稚鱼的日丰度为0~0.255 3 m-3,日平均丰度为0.041 4 m-3,5月份仔稚鱼的平均日丰度最大。仔稚鱼物种大多为杂食性(占总物种数的82.4%),产黏性卵的居多(占总物种数的47.1%),多数营底层生活(占总物种数的53.0%)。冗余分析结果显示,仔稚鱼的数量与水温呈显著(P<0.05)相关性,与流量和透明度无显著相关性。

关键词: 钱塘江, 仔稚鱼, 产卵场, 环境因子

Abstract:

In order to clarify the current status of juvenile fish resources in Tangjiazhou spawning ground in the lower reaches of Qiantang River, the juvenile fish resources in Tangjiazhou spawning ground were monitored from April to June, 2022. The species composition, ecological type, temporal variation of abundance and community characteristics of the juvenile fish resources were analyzed, and the relationship between the community characteristics and main environmental factors was analyzed, to provide data support for the protection and utilization of fish resources in Qiantang River. A total of 1 191 juvenile fishes were collected and identified, belonging to 2 orders, 2 families, 17 species, of which there were 5 dominant species and 1 common species. During the survey period, the daily abundance of juvenile fish ranged from 0 to 0.255 3 m-3, and the average daily abundance was 0.041 4 m-3. Most of the juvenile fishes were omnivorous (82.4% of the total species), produced sticky eggs (47.1% of the total species), lived in the bottom layer (53.0% of the total species). The results of redundancy analysis showed that the number of juvenile fishes was significantly (P<0.05) correlated with water temperature, yet had no significant correlation with discharge and transparency.

Key words: Qiantang River, juvenile fish, spawning ground, environmental factor

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