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Tytuł pozycji:

Using vertebrate environmental DNA from seawater in biomonitoring of marine habitats

Tytuł :
Using vertebrate environmental DNA from seawater in biomonitoring of marine habitats
Autorzy :
Egelyng Sigsgaard, Eva
Torquato, Felipe
Frøslev, Tobias Guldberg
Moore, Alec B M
Mølgård Sørensen, Johan
Range, Pedro
Ben Hamadou, Radhouane
Sanvig Bach, Steffen
Rask Møller, Peter
Thomsen, Philip Francis
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Temat :
ADNa
Arabian Gulf
Golfo Arábigo
biomonitoreo
biomonitoring
eDNA
fish
meta-código de barras
metabarcoding
peces
Źródło :
Egelyng Sigsgaard, E, Torquato, F, Frøslev, T G, Moore, A B M, Mølgård Sørensen, J, Range, P, Ben Hamadou, R, Sanvig Bach, S, Rask Møller, P & Thomsen, P F 2019, ' Using vertebrate environmental DNA from seawater in biomonitoring of marine habitats ', Conservation Biology . https://doi.org/10.1111/cobi.13437
Rok publikacji :
2019
Kolekcja :
PURE_Aarhus_University
Język :
English
ISSN :
0888-8892
DOI :
10.1111/cobi.13437
Numer akcesji :
edsair.pure.au.......bbad8c2cd5ca386ef117b7613274afab
Conservation management of marine biodiversity depends on biomonitoring of marine habitats, but current approaches are resource-intensive and require different approaches for different organisms. Environmental DNA (eDNA) extracted from water samples is an efficient and versatile approach to detecting aquatic animals. In the ocean, eDNA composition reflects local fauna at fine spatial scales, but little is known about the effectiveness of eDNA-based monitoring of marine communities at larger scales. We investigated the potential of eDNA to characterize and distinguish marine communities at large spatial scales by comparing vertebrate species composition among marine habitats in Qatar, the Arabian Gulf (also known as the Persian Gulf), based on eDNA metabarcoding of seawater samples. We conducted species accumulation analyses to estimate how much of the vertebrate diversity we detected. We obtained eDNA sequences from a diverse assemblage of marine vertebrates, spanning 191 taxa in 73 families. These included rare and endangered species and covered 36% of the bony fish genera previously recorded in the gulf. Sites of similar habitat type were also similar in eDNA composition. The species accumulation analyses showed that the number of sample replicates was insufficient for some sampling sites but suggested that a few hundred eDNA samples could potentially capture >90% of the marine vertebrate diversity in the study area. Our results confirm that seawater samples contain habitat-characteristic molecular signatures and that eDNA monitoring can efficiently cover vertebrate diversity at scales relevant to national and regional conservation and management. Article impact statement: Environmental DNA provides habitat-characteristic molecular signatures and can be used efficiently to map marine biodiversity at large spatial scales. This article is protected by copyright. All rights reserved.

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