Complementary molecular and visual sampling of fish on oil and gas platforms provides superior biodiversity characterisation.
Artificial reef
Biomonitoring
Elasmobranchii
Gulf of Thailand
Methods comparison
Offshore structures
Stereo-video ROV
eDNA metabarcoding
Journal
Marine environmental research
ISSN: 1879-0291
Titre abrégé: Mar Environ Res
Pays: England
ID NLM: 9882895
Informations de publication
Date de publication:
Jul 2022
Jul 2022
Historique:
received:
06
12
2021
revised:
20
06
2022
accepted:
21
06
2022
pubmed:
6
7
2022
medline:
18
8
2022
entrez:
5
7
2022
Statut:
ppublish
Résumé
Offshore oil and gas platforms have the potential to provide complex refugia for fish and benthic colonisers. We compare two methods of biodiversity assessment for fish and elasmobranchs at seven decommissioned oil and gas platforms as well as five sediment sites, located 5 km from platforms, in the Gulf of Thailand. Using surveys from stereo-video ROV transects, and data from Environmental DNA (eDNA) water-column samples, we detected fish and elasmobranch taxa from 39 families and 66 genera across both platform and sediment sites with eDNA, compared with 18 families and 29 genera by stereo-ROV with platforms yielding significantly greater species richness. This study demonstrates that the combination of stereo-video ROV and eDNA provide effective, non-extractive and complementary methods to enhance data capture. This approach sets new benchmarks for evaluating fish assemblages surrounding platforms and will enhance measurements of biota to inform decisions on the fate of oil/gas infrastructure.
Identifiants
pubmed: 35785679
pii: S0141-1136(22)00137-4
doi: 10.1016/j.marenvres.2022.105692
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
105692Informations de copyright
Copyright © 2022 The Authors. Published by Elsevier Ltd.. All rights reserved.