Modelling the impact of aquaculture on early diagenetic processes in sea loch sediments
We present a novel approach for the simulation of the impacts of finfish aquaculture on sedimentary redox dynamics, based on the coupling of a fish farm waste deposition model (DEPOMOD) and a knowledge-based reactive transport model (RTM) of early diagenesis. The integrated model was applied to a sa...
Published in: | Marine Ecology Progress Series |
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Language: | English |
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2009
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Online Access: | https://pure.uhi.ac.uk/en/publications/a2e41557-f377-4f04-98e5-777c7168f1f9 https://doi.org/10.3354/meps08072 |
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ftuhipublicatio:oai:pure.atira.dk:publications/a2e41557-f377-4f04-98e5-777c7168f1f9 2024-02-04T09:58:59+01:00 Modelling the impact of aquaculture on early diagenetic processes in sea loch sediments Brigolin, D Pastres, R Nickell, Thom Cromey, Chris J Aguilera, D R Regnier, P 2009 https://pure.uhi.ac.uk/en/publications/a2e41557-f377-4f04-98e5-777c7168f1f9 https://doi.org/10.3354/meps08072 eng eng info:eu-repo/semantics/restrictedAccess Brigolin , D , Pastres , R , Nickell , T , Cromey , C J , Aguilera , D R & Regnier , P 2009 , ' Modelling the impact of aquaculture on early diagenetic processes in sea loch sediments ' , MAR ECOL-PROG SER , no. 8 , pp. 63-80 . https://doi.org/10.3354/meps08072 SEASONAL-CHANGES ATLANTIC SALMON Marine & Freshwater Biology SUBSURFACE ENVIRONMENTS Oceanography MARINE-SEDIMENTS DISSOLVED-OXYGEN METHANE Ecology FLUXES ORGANIC-CARBON SURFACE SEDIMENTS REACTIVE-TRANSPORT article 2009 ftuhipublicatio https://doi.org/10.3354/meps08072 2024-01-11T23:20:59Z We present a novel approach for the simulation of the impacts of finfish aquaculture on sedimentary redox dynamics, based on the coupling of a fish farm waste deposition model (DEPOMOD) and a knowledge-based reactive transport model (RTM) of early diagenesis. The integrated model was applied to a salmon fish farm located in a Scottish fjordic sealoch. The major diagenetic processes of the reaction network were first identified on the basis of literature information and historic data, Next, the organic carbon (OC) flux at a pristine site near the farm was estimated by fitting the vertical profiles of pore water and solid-state chemical species measured in the field, DEPOMOD was then used to predict the fluxes of OC due to the release of uneaten feed and faeces at various distances away from the farm. These fluxes were added to the background 'natural' fluxes and used as forcing functions for the RTM. Comparison of the simulated transient profiles with data collected at an impacted site revealed that the RTM model satisfactorily predicted the transient dynamics of the system. We discuss the use of the model for cost-effective environmental impact assessments, site selection and the optimization of husbandry practices. Article in Journal/Newspaper Atlantic salmon University of the Highlands and Islands: Research Database of UHI Marine Ecology Progress Series 388 63 80 |
institution |
Open Polar |
collection |
University of the Highlands and Islands: Research Database of UHI |
op_collection_id |
ftuhipublicatio |
language |
English |
topic |
SEASONAL-CHANGES ATLANTIC SALMON Marine & Freshwater Biology SUBSURFACE ENVIRONMENTS Oceanography MARINE-SEDIMENTS DISSOLVED-OXYGEN METHANE Ecology FLUXES ORGANIC-CARBON SURFACE SEDIMENTS REACTIVE-TRANSPORT |
spellingShingle |
SEASONAL-CHANGES ATLANTIC SALMON Marine & Freshwater Biology SUBSURFACE ENVIRONMENTS Oceanography MARINE-SEDIMENTS DISSOLVED-OXYGEN METHANE Ecology FLUXES ORGANIC-CARBON SURFACE SEDIMENTS REACTIVE-TRANSPORT Brigolin, D Pastres, R Nickell, Thom Cromey, Chris J Aguilera, D R Regnier, P Modelling the impact of aquaculture on early diagenetic processes in sea loch sediments |
topic_facet |
SEASONAL-CHANGES ATLANTIC SALMON Marine & Freshwater Biology SUBSURFACE ENVIRONMENTS Oceanography MARINE-SEDIMENTS DISSOLVED-OXYGEN METHANE Ecology FLUXES ORGANIC-CARBON SURFACE SEDIMENTS REACTIVE-TRANSPORT |
description |
We present a novel approach for the simulation of the impacts of finfish aquaculture on sedimentary redox dynamics, based on the coupling of a fish farm waste deposition model (DEPOMOD) and a knowledge-based reactive transport model (RTM) of early diagenesis. The integrated model was applied to a salmon fish farm located in a Scottish fjordic sealoch. The major diagenetic processes of the reaction network were first identified on the basis of literature information and historic data, Next, the organic carbon (OC) flux at a pristine site near the farm was estimated by fitting the vertical profiles of pore water and solid-state chemical species measured in the field, DEPOMOD was then used to predict the fluxes of OC due to the release of uneaten feed and faeces at various distances away from the farm. These fluxes were added to the background 'natural' fluxes and used as forcing functions for the RTM. Comparison of the simulated transient profiles with data collected at an impacted site revealed that the RTM model satisfactorily predicted the transient dynamics of the system. We discuss the use of the model for cost-effective environmental impact assessments, site selection and the optimization of husbandry practices. |
format |
Article in Journal/Newspaper |
author |
Brigolin, D Pastres, R Nickell, Thom Cromey, Chris J Aguilera, D R Regnier, P |
author_facet |
Brigolin, D Pastres, R Nickell, Thom Cromey, Chris J Aguilera, D R Regnier, P |
author_sort |
Brigolin, D |
title |
Modelling the impact of aquaculture on early diagenetic processes in sea loch sediments |
title_short |
Modelling the impact of aquaculture on early diagenetic processes in sea loch sediments |
title_full |
Modelling the impact of aquaculture on early diagenetic processes in sea loch sediments |
title_fullStr |
Modelling the impact of aquaculture on early diagenetic processes in sea loch sediments |
title_full_unstemmed |
Modelling the impact of aquaculture on early diagenetic processes in sea loch sediments |
title_sort |
modelling the impact of aquaculture on early diagenetic processes in sea loch sediments |
publishDate |
2009 |
url |
https://pure.uhi.ac.uk/en/publications/a2e41557-f377-4f04-98e5-777c7168f1f9 https://doi.org/10.3354/meps08072 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
Brigolin , D , Pastres , R , Nickell , T , Cromey , C J , Aguilera , D R & Regnier , P 2009 , ' Modelling the impact of aquaculture on early diagenetic processes in sea loch sediments ' , MAR ECOL-PROG SER , no. 8 , pp. 63-80 . https://doi.org/10.3354/meps08072 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.3354/meps08072 |
container_title |
Marine Ecology Progress Series |
container_volume |
388 |
container_start_page |
63 |
op_container_end_page |
80 |
_version_ |
1789963587381362688 |