Changes in benthic sediment conditions under an Atlantic salmon farm at a deep, well-flushed coastal site

Along the Norwegian coastline, it is predicted that salmonid aquaculture will rapidly expand in the coming years, exceeding current production levels of 1.3 million t in 2012. This will result in increased interactions with both local and regional environments, thus more knowledge is urgently needed...

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Autores principales:	RJ Bannister, T Valdemarsen, PK Hansen, M Holmer, A Ervik
Formato:	article
Lenguaje:	EN
Publicado:	Inter-Research 2014
Materias:	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/ec84cd96da644972a5310634897fc1eb
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spelling	oai:doaj.org-article:ec84cd96da644972a5310634897fc1eb2021-11-17T10:07:51ZChanges in benthic sediment conditions under an Atlantic salmon farm at a deep, well-flushed coastal site1869-215X1869-753410.3354/aei00092https://doaj.org/article/ec84cd96da644972a5310634897fc1eb2014-02-01T00:00:00Zhttps://www.int-res.com/abstracts/aei/v5/n1/p29-47/https://doaj.org/toc/1869-215Xhttps://doaj.org/toc/1869-7534Along the Norwegian coastline, it is predicted that salmonid aquaculture will rapidly expand in the coming years, exceeding current production levels of 1.3 million t in 2012. This will result in increased interactions with both local and regional environments, thus more knowledge is urgently needed to better risk-manage a rapid expansion. We investigated changes in the benthic sediment condition in association with an Atlantic salmon farm sited at a deep, well-flushed coastal site in western Norway. Benthic fluxes of O2, total carbon dioxide (TCO2) and NH4+ intensified over the production cycle, when farming activity and the sedimentation of carbon and nitrogen was at its maximum. During the sampling campaign, benthic fluxes of O2, TCO2 and NH4+ at the farming location were higher than those measured at a nearby reference location. Stimulation of benthic fluxes over the production cycle at the farming location were most likely driven by changes in benthic faunal community structure, abundance and biomass. High abundances of opportunistic species (i.e. Capitella capitata, Heteromastus filiformis, Paramphinome jeffreysii, Abra nitida and Thyasira sarsii) dominated the farming location, whilst the sediment biogeochemistry was stable throughout the study period at both locations. However, despite differences in benthic fluxes and fauna structure over the production cycle, the input of organic carbon and nitrogen did not exceed the mineralisation capacity of a deep, well-flushed, fish farming location.RJ BannisterT ValdemarsenPK HansenM HolmerA ErvikInter-ResearcharticleAquaculture. Fisheries. AnglingSH1-691EcologyQH540-549.5ENAquaculture Environment Interactions, Vol 5, Iss 1, Pp 29-47 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5
spellingShingle	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5 RJ Bannister T Valdemarsen PK Hansen M Holmer A Ervik Changes in benthic sediment conditions under an Atlantic salmon farm at a deep, well-flushed coastal site
description	Along the Norwegian coastline, it is predicted that salmonid aquaculture will rapidly expand in the coming years, exceeding current production levels of 1.3 million t in 2012. This will result in increased interactions with both local and regional environments, thus more knowledge is urgently needed to better risk-manage a rapid expansion. We investigated changes in the benthic sediment condition in association with an Atlantic salmon farm sited at a deep, well-flushed coastal site in western Norway. Benthic fluxes of O2, total carbon dioxide (TCO2) and NH4+ intensified over the production cycle, when farming activity and the sedimentation of carbon and nitrogen was at its maximum. During the sampling campaign, benthic fluxes of O2, TCO2 and NH4+ at the farming location were higher than those measured at a nearby reference location. Stimulation of benthic fluxes over the production cycle at the farming location were most likely driven by changes in benthic faunal community structure, abundance and biomass. High abundances of opportunistic species (i.e. Capitella capitata, Heteromastus filiformis, Paramphinome jeffreysii, Abra nitida and Thyasira sarsii) dominated the farming location, whilst the sediment biogeochemistry was stable throughout the study period at both locations. However, despite differences in benthic fluxes and fauna structure over the production cycle, the input of organic carbon and nitrogen did not exceed the mineralisation capacity of a deep, well-flushed, fish farming location.
format	article
author	RJ Bannister T Valdemarsen PK Hansen M Holmer A Ervik
author_facet	RJ Bannister T Valdemarsen PK Hansen M Holmer A Ervik
author_sort	RJ Bannister
title	Changes in benthic sediment conditions under an Atlantic salmon farm at a deep, well-flushed coastal site
title_short	Changes in benthic sediment conditions under an Atlantic salmon farm at a deep, well-flushed coastal site
title_full	Changes in benthic sediment conditions under an Atlantic salmon farm at a deep, well-flushed coastal site
title_fullStr	Changes in benthic sediment conditions under an Atlantic salmon farm at a deep, well-flushed coastal site
title_full_unstemmed	Changes in benthic sediment conditions under an Atlantic salmon farm at a deep, well-flushed coastal site
title_sort	changes in benthic sediment conditions under an atlantic salmon farm at a deep, well-flushed coastal site
publisher	Inter-Research
publishDate	2014
url	https://doaj.org/article/ec84cd96da644972a5310634897fc1eb
work_keys_str_mv	AT rjbannister changesinbenthicsedimentconditionsunderanatlanticsalmonfarmatadeepwellflushedcoastalsite AT tvaldemarsen changesinbenthicsedimentconditionsunderanatlanticsalmonfarmatadeepwellflushedcoastalsite AT pkhansen changesinbenthicsedimentconditionsunderanatlanticsalmonfarmatadeepwellflushedcoastalsite AT mholmer changesinbenthicsedimentconditionsunderanatlanticsalmonfarmatadeepwellflushedcoastalsite AT aervik changesinbenthicsedimentconditionsunderanatlanticsalmonfarmatadeepwellflushedcoastalsite
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Changes in benthic sediment conditions under an Atlantic salmon farm at a deep, well-flushed coastal site

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