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Spatial variability of the coastal Wadden Sea fish community as revealed by environmental DNA
Poiesz, S.S.H.; Witte, J.IJ.; van Bleijswijk, J.D.L.; Witte, H.J.; van Weerlee, E.M.; Brouwer, M.; Vreugdenhil, S.; van der Veer, H.W.; Klunder, L. (2025). Spatial variability of the coastal Wadden Sea fish community as revealed by environmental DNA. Est., Coast. and Shelf Sci. 323: 109411. https://dx.doi.org/10.1016/j.ecss.2025.109411
In: Estuarine, Coastal and Shelf Science. Academic Press: London; New York. ISSN 0272-7714; e-ISSN 1096-0015
Peer reviewed article  
Available in  Authors 
Author keywords

    Core fish species; Transient species; Dutch temperate coastal estuarine; Environmental DNA-Metabarcoding; Biodiversity monitoring; Spatial similarity and differences; DNA-Sequencing; 12S barcode; Riaz primers

Authors  Top 
  • Poiesz, S.S.H.
  • Witte, J.IJ.
  • van Bleijswijk, J.D.L.
  • Witte, H.J.
  • van Weerlee, E.M.
  • Brouwer, M.
  • Vreugdenhil, S.
  • van der Veer, H.W.
  • Klunder, L.
Abstract
    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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