水生生物学报2026，Vol.50Issue(7)：126-137,12.DOI:10.3724/1000-3207.2026.2025.0352
基于环境DNA技术的浙江中北部近海棘头梅童鱼时空分布特征
SPATIOTEMPORAL DISTRIBUTION PATTERN OF COLLICHTHYS LUCIDUS IN THE CENTRAL-NORTHERN COASTAL WATERS OF ZHEJIANG BASED ON ENVIRONMENTAL DNA(eDNA)
摘要
Abstract
To elucidate the spatiotemporal distribution pattern of spinyhead croaker(Collichthys lucidus)and its rela-tionship with environmental factors,this study combined environmental DNA(eDNA)techniques with traditional fishe-ry resource surveys to systematically investigate C.lucidus in the central-northern coastal waters of Zhejiang during summer and autumn.The results showed that:(1)C.lucidus exhibited a wider distribution range in autumn,but its eDNA concentrations were lower than those in summer;(2)vertically,eDNA concentrations were higher in bottom waters than those in the middle and surface layers;(3)key environmental factors(water depth,temperature,salinity,dissolved oxygen,chlorophyll a,and chemical oxygen demand)had significant effects on its distribution;and(4)the spatial pattern of C.lucidus eDNA concentration was broadly consistent with the biomass distribution derived from conventional fishery resource surveys.Overall,this study demonstrates that eDNA technology can effectively charac-terize the spatiotemporal distribution of C.lucidus and its responses to environmental drivers,providing a novel techni-cal approach and scientific basis for dynamic resource monitoring,habitat conservation,and sustainable utilization of this species.关键词
环境DNA/分布特征/生物量/环境因子/棘头梅童鱼Key words
Environmental DNA(eDNA)/Spatiotemporal distribution/Biomass/Environmental drivers/Collichthys lucidus分类
农业科技引用本文复制引用
赵云浩,袁霞,毛梦琦,周永东,张洪亮,王好学,王晓艳..基于环境DNA技术的浙江中北部近海棘头梅童鱼时空分布特征[J].水生生物学报,2026,50(7):126-137,12.基金项目
国家重点研发计划(2023YFD2401901和2020YFD0900804) （2023YFD2401901和2020YFD0900804）
国家自然科学基金(41806180) （41806180）
舟山市科技项目(2025C31038和2025C31034)资助[Supported by the National Key Research and Development Program of China(2023YFD2401901 and 2020YFD0900804) （2025C31038和2025C31034）
the National Natural Science Foundation of China(41806180) （41806180）
Zhoushan Science and Technology Project(2025C31038 and 2025C31034)] （2025C31038 and 2025C31034）
