环境DNA揭示的滨海瓦登海鱼类群落空间变异

IF 2.6 3区地球科学 Q1 MARINE & FRESHWATER BIOLOGY

Estuarine Coastal and Shelf Science Pub Date : 2025-06-23 DOI:10.1016/j.ecss.2025.109411

Suzanne SH. Poiesz , Johannes IJ. Witte , Judith DL. van Bleijswijk , Harry J. Witte , Evaline M. van Weerlee , Maartje Brouwer , Sanne Vreugdenhil , Henk W. van der Veer , Lise Klunder

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引用次数: 0

摘要

以往的研究表明，在温带瓦登海，鱼类食物网结构存在空间变异性。然而，这些研究是在不同的年份和使用不同的捕鱼装置进行的。为了消除鱼类丰度的年际变化和采样设计的影响，2018-2019年，在荷兰瓦登湖的空间尺度上，全年在8个地点进行了环境DNA （eDNA）研究。总共鉴定出40种不同的鱼类和8个鱼类群。在样本中发现的鱼类种类数量随着时间和地点的不同而变化，在3到19种不同的鱼类之间。年内，在所有地点共发现20个品种；在6-7个地点发现8种，其余30种是偶然发现的。在瓦登海鱼类群落中发现的空间变异性是由于水文和地貌特征的特定位置差异导致的稀有（瞬时）物种存在变异性的结果。

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Spatial variability of the coastal Wadden Sea fish community as revealed by environmental DNA

Previous studies have suggested the occurrence of spatial variability in the fish food web structure in the temperate Wadden Sea. However, these studies were carried out in different years and with different fishing devices. To eliminate interannual variability in fish abundance and the impact of sampling design, an environmental DNA (eDNA) study was performed monthly at eight locations over the spatial scale of the Dutch Wadden See year-round in 2018–2019. In total, 40 different individual fish species and 8 fish groups were identified. The number of fish species identified in the samples varied over time and among locations between three and 19 different fish species. Over the year, 20 species were identified at all locations; eight species were found at 6–7 locations and the remaining 30 species were found only incidentally. The spatial variability found in the Wadden Sea fish community is the result of the variability in presence of rare (transient) species, due to location specific differences in hydrographical and geomorphological characteristics.

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来源期刊

Estuarine Coastal and Shelf Science 地学-海洋学

CiteScore

5.60

自引率

7.10%

发文量

374

审稿时长

9 months

期刊介绍： Estuarine, Coastal and Shelf Science is an international multidisciplinary journal devoted to the analysis of saline water phenomena ranging from the outer edge of the continental shelf to the upper limits of the tidal zone. The journal provides a unique forum, unifying the multidisciplinary approaches to the study of the oceanography of estuaries, coastal zones, and continental shelf seas. It features original research papers, review papers and short communications treating such disciplines as zoology, botany, geology, sedimentology, physical oceanography.