浙江农业学报2025，Vol.37Issue(2)：278-287,10.DOI:10.3969/j.issn.1004-1524.20240145
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
Current status of juvenile fish resources in Tangjiazhou spawning ground of Qiantang River and their relationship with environmental factors
摘要
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 characteris-tics 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 Qian-tang River.A total of 1 191 juvenile fishes were collected and identified,belonging to 2 orders,2 families,17 spe-cies,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 ju-venile 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.关键词
钱塘江/仔稚鱼/产卵场/环境因子Key words
Qiantang River/juvenile fish/spawning ground/environmental factor分类
农业科技引用本文复制引用
鲁一平,练青平,郭爱环,罗凯,许巧情,原居林..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[J].浙江农业学报,2025,37(2):278-287,10.基金项目
浙江省财政专项(2022CZZX001,2023CZZX001) （2022CZZX001,2023CZZX001）
农业农村部淡水渔业健康养殖重点实验室开放项目(ZJK202312) （ZJK202312）
