Combined use of eDNA metabarcoding and video surveillance for the assessment of fish biodiversity

Monitoring communities of fish is important for the management and sustainability of fisheries and marine ecosystems. Baited remote underwater video systems (BRUVs) are among the most effective nondestructive techniques for sampling bony fishes and elasmobranchs (sharks, rays, and skates). However,...

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Main Authors: Stat, Michael, John, J., Di Battista, Joseph, Newman, Stephen, Bunce, Michael, Harvey, Euan
Format: Journal Article
Published: Wiley-Blackwell Publishing Inc. 2018
Online Access:http://purl.org/au-research/grants/arc/LP160100839
http://hdl.handle.net/20.500.11937/72751
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author Stat, Michael
John, J.
Di Battista, Joseph
Newman, Stephen
Bunce, Michael
Harvey, Euan
author_facet Stat, Michael
John, J.
Di Battista, Joseph
Newman, Stephen
Bunce, Michael
Harvey, Euan
author_sort Stat, Michael
building Curtin Institutional Repository
collection Online Access
description Monitoring communities of fish is important for the management and sustainability of fisheries and marine ecosystems. Baited remote underwater video systems (BRUVs) are among the most effective nondestructive techniques for sampling bony fishes and elasmobranchs (sharks, rays, and skates). However, BRUVs sample visually conspicuous biota; hence, some taxa are undersampled or not recorded at all. We compared the diversity of fishes characterized using BRUVs with diversity detected via environmental DNA (eDNA) metabarcoding. We sampled seawater and captured BRUVs imagery at 48 locales that included reef and seagrass beds inside and outside a marine reserve (Jurien Bay in Western Australia). Eighty-two fish genera from 13 orders were detected, and the community of fishes described using eDNA and BRUVs combined yielded >30% more generic richness than when either method was used alone. Rather than detecting a homogenous genetic signature, the eDNA assemblages mirrored the BRUVs’ spatial explicitness; differentiation of taxa between seagrass and reef was clear despite the relatively small geographical scale of the study site (~35 km2). Taxa that were not sampled by one approach, due to limitations and biases intrinsic to the method, were often detected with the other. Therefore, using BRUVs and eDNA in concert provides a more holistic view of vertebrate marine communities across habitats. Both methods are noninvasive, which enhances their potential for widespread implementation in the surveillance of marine ecosystems.
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institution Curtin University Malaysia
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spelling curtin-20.500.11937-727512022-11-23T07:02:00Z Combined use of eDNA metabarcoding and video surveillance for the assessment of fish biodiversity Stat, Michael John, J. Di Battista, Joseph Newman, Stephen Bunce, Michael Harvey, Euan Monitoring communities of fish is important for the management and sustainability of fisheries and marine ecosystems. Baited remote underwater video systems (BRUVs) are among the most effective nondestructive techniques for sampling bony fishes and elasmobranchs (sharks, rays, and skates). However, BRUVs sample visually conspicuous biota; hence, some taxa are undersampled or not recorded at all. We compared the diversity of fishes characterized using BRUVs with diversity detected via environmental DNA (eDNA) metabarcoding. We sampled seawater and captured BRUVs imagery at 48 locales that included reef and seagrass beds inside and outside a marine reserve (Jurien Bay in Western Australia). Eighty-two fish genera from 13 orders were detected, and the community of fishes described using eDNA and BRUVs combined yielded >30% more generic richness than when either method was used alone. Rather than detecting a homogenous genetic signature, the eDNA assemblages mirrored the BRUVs’ spatial explicitness; differentiation of taxa between seagrass and reef was clear despite the relatively small geographical scale of the study site (~35 km2). Taxa that were not sampled by one approach, due to limitations and biases intrinsic to the method, were often detected with the other. Therefore, using BRUVs and eDNA in concert provides a more holistic view of vertebrate marine communities across habitats. Both methods are noninvasive, which enhances their potential for widespread implementation in the surveillance of marine ecosystems. 2018 Journal Article http://hdl.handle.net/20.500.11937/72751 10.1111/cobi.13183 http://purl.org/au-research/grants/arc/LP160100839 http://creativecommons.org/licenses/by/4.0/ Wiley-Blackwell Publishing Inc. fulltext
spellingShingle Stat, Michael
John, J.
Di Battista, Joseph
Newman, Stephen
Bunce, Michael
Harvey, Euan
Combined use of eDNA metabarcoding and video surveillance for the assessment of fish biodiversity
title Combined use of eDNA metabarcoding and video surveillance for the assessment of fish biodiversity
title_full Combined use of eDNA metabarcoding and video surveillance for the assessment of fish biodiversity
title_fullStr Combined use of eDNA metabarcoding and video surveillance for the assessment of fish biodiversity
title_full_unstemmed Combined use of eDNA metabarcoding and video surveillance for the assessment of fish biodiversity
title_short Combined use of eDNA metabarcoding and video surveillance for the assessment of fish biodiversity
title_sort combined use of edna metabarcoding and video surveillance for the assessment of fish biodiversity
url http://purl.org/au-research/grants/arc/LP160100839
http://hdl.handle.net/20.500.11937/72751