Fish associations with shallow water subsea pipelines compared to surrounding reef and soft sediment habitats

Abstract Offshore decommissioning activities are expected to increase as oil and gas subsea infrastructure becomes obsolete. Decisions on decommissioning alternatives will benefit from quantifying and understanding the marine communities associated with these structures. As a case study, fish assemb...

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Autores principales:	Karl D. Schramm, Michael J. Marnane, Travis S. Elsdon, Christopher M. Jones, Benjamin J. Saunders, Stephen J. Newman, Euan S. Harvey
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5e96497885ab4b5787028f55843e6dab
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spelling	oai:doaj.org-article:5e96497885ab4b5787028f55843e6dab2021-12-02T13:17:55ZFish associations with shallow water subsea pipelines compared to surrounding reef and soft sediment habitats10.1038/s41598-021-85396-y2045-2322https://doaj.org/article/5e96497885ab4b5787028f55843e6dab2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-85396-yhttps://doaj.org/toc/2045-2322Abstract Offshore decommissioning activities are expected to increase as oil and gas subsea infrastructure becomes obsolete. Decisions on decommissioning alternatives will benefit from quantifying and understanding the marine communities associated with these structures. As a case study, fish assemblages associated with an inshore network of subsea pipelines located on the North West shelf of Western Australia were compared to those in surrounding natural reef and soft sediment habitats using remotely operated vehicles fitted with a stereo-video system (stereo-ROVs). The number of species, the abundance, biomass, feeding guild composition and the economic value of fishes were compared among habitats. The community composition of fish associated with pipelines was distinct from those associated with natural habitats, and was characterised by a greater abundance and/or biomass of fish from higher trophic levels (e.g. piscivores, generalist carnivores and invertivores), including many species considered to be of value to commercial and recreational fishers. Biomass of fish on pipelines was, on average, 20 times greater than soft sediments, and was similar to natural reefs. However, the biomass of species considered important to fisheries recorded on the pipelines was, on average 3.5 times greater than reef and 44.5 times greater than soft sediment habitats. This study demonstrates that fish assemblages on the pipeline infrastructure exhibit high ecological and socioeconomic values.Karl D. SchrammMichael J. MarnaneTravis S. ElsdonChristopher M. JonesBenjamin J. SaundersStephen J. NewmanEuan S. HarveyNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Karl D. Schramm Michael J. Marnane Travis S. Elsdon Christopher M. Jones Benjamin J. Saunders Stephen J. Newman Euan S. Harvey Fish associations with shallow water subsea pipelines compared to surrounding reef and soft sediment habitats
description	Abstract Offshore decommissioning activities are expected to increase as oil and gas subsea infrastructure becomes obsolete. Decisions on decommissioning alternatives will benefit from quantifying and understanding the marine communities associated with these structures. As a case study, fish assemblages associated with an inshore network of subsea pipelines located on the North West shelf of Western Australia were compared to those in surrounding natural reef and soft sediment habitats using remotely operated vehicles fitted with a stereo-video system (stereo-ROVs). The number of species, the abundance, biomass, feeding guild composition and the economic value of fishes were compared among habitats. The community composition of fish associated with pipelines was distinct from those associated with natural habitats, and was characterised by a greater abundance and/or biomass of fish from higher trophic levels (e.g. piscivores, generalist carnivores and invertivores), including many species considered to be of value to commercial and recreational fishers. Biomass of fish on pipelines was, on average, 20 times greater than soft sediments, and was similar to natural reefs. However, the biomass of species considered important to fisheries recorded on the pipelines was, on average 3.5 times greater than reef and 44.5 times greater than soft sediment habitats. This study demonstrates that fish assemblages on the pipeline infrastructure exhibit high ecological and socioeconomic values.
format	article
author	Karl D. Schramm Michael J. Marnane Travis S. Elsdon Christopher M. Jones Benjamin J. Saunders Stephen J. Newman Euan S. Harvey
author_facet	Karl D. Schramm Michael J. Marnane Travis S. Elsdon Christopher M. Jones Benjamin J. Saunders Stephen J. Newman Euan S. Harvey
author_sort	Karl D. Schramm
title	Fish associations with shallow water subsea pipelines compared to surrounding reef and soft sediment habitats
title_short	Fish associations with shallow water subsea pipelines compared to surrounding reef and soft sediment habitats
title_full	Fish associations with shallow water subsea pipelines compared to surrounding reef and soft sediment habitats
title_fullStr	Fish associations with shallow water subsea pipelines compared to surrounding reef and soft sediment habitats
title_full_unstemmed	Fish associations with shallow water subsea pipelines compared to surrounding reef and soft sediment habitats
title_sort	fish associations with shallow water subsea pipelines compared to surrounding reef and soft sediment habitats
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/5e96497885ab4b5787028f55843e6dab
work_keys_str_mv	AT karldschramm fishassociationswithshallowwatersubseapipelinescomparedtosurroundingreefandsoftsedimenthabitats AT michaeljmarnane fishassociationswithshallowwatersubseapipelinescomparedtosurroundingreefandsoftsedimenthabitats AT travisselsdon fishassociationswithshallowwatersubseapipelinescomparedtosurroundingreefandsoftsedimenthabitats AT christophermjones fishassociationswithshallowwatersubseapipelinescomparedtosurroundingreefandsoftsedimenthabitats AT benjaminjsaunders fishassociationswithshallowwatersubseapipelinescomparedtosurroundingreefandsoftsedimenthabitats AT stephenjnewman fishassociationswithshallowwatersubseapipelinescomparedtosurroundingreefandsoftsedimenthabitats AT euansharvey fishassociationswithshallowwatersubseapipelinescomparedtosurroundingreefandsoftsedimenthabitats
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Fish associations with shallow water subsea pipelines compared to surrounding reef and soft sediment habitats

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