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DNA metabarcoding on repeat: sequencing data of marine macrobenthos are reproducible and robust across labs and protocols
Van den Bulcke, L.; De Backer, A.; Wittoeck, J.; Beentjes, K.; Maes, S.; Christodoulou, M.; Martinez Arbizu, P.; Sapkota, R.; van der Hoorn, B.; Winding, A.; Hostens, K.; Derycke, S. (2023). DNA metabarcoding on repeat: sequencing data of marine macrobenthos are reproducible and robust across labs and protocols. Ecol. Indic. 150: 110207. https://dx.doi.org/10.1016/j.ecolind.2023.110207
In: Ecological Indicators. Elsevier: Shannon. ISSN 1470-160X; e-ISSN 1872-7034
Peer reviewed article  
Available in  Authors 
Keyword
    Marine/Coastal
Author keywords
    Marine environmental monitoring; North Sea; COI; Standardized operational protocol; Ring test; Standard operating procedures (SOPS)
Project Top | Authors 
  • Genetic Tools for Ecosystem Health Assessment in the North Sea Region
Authors  Top 
  • Van den Bulcke, L.
  • De Backer, A.
  • Wittoeck, J., more
  • Beentjes, K.
  • Maes, S.
  • Christodoulou, M.
  • Martinez Arbizu, P., more
  • Sapkota, R.
  • van der Hoorn, B.
  • Winding, A.
  • Hostens, K., more
  • Derycke, S., more
Abstract
    DNA metabarcoding can be used in marine environmental monitoring if results are reproducible between labs and robust against modifications to the lab protocol. In this interlaboratory study, we conducted a ring test where subsamples of blended macrobenthos samples were distributed to four laboratories located in Belgium, the Netherlands, Germany and Denmark. Samples were processed by a standardized lab protocol and by an adapted protocol, and the resulting datasets were analyzed with the same bioinformatics pipeline. Different biodiversity indicators were calculated. Our results show that bulkDNA metabarcoding of marine macrobenthos offers a highly reproducible assessment of alpha diversity patterns when using a standardized protocol, since comparable species numbers, Shannon indices and Inverse Simpson indices were found between laboratories. Especially high abundant species and species with large body sizes where shared between the laboratories. The need for using a standardized protocol to enhance comparability in alpha diversity between different studies was shown. Beta diversity patterns are less subjected to changes in the metabarcoding protocol and were almost identical between different laboratories, as the main clustering was always based on the macrobenthic community, independent of the used protocol or the laboratory that conducted the work. We conclude that DNA metabarcoding for marine environmental monitoring is an appropriate method when the aim is to study changes in community patterns and advocate its implementation in routine monitoring programs of national and European authorities, providing that a standardized protocol is implemented and/or a detailed description of the protocol is available.
All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors 
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