Do trout farm effluents affect Atlantic salmon smolts? preliminary studies using caged salmon smolts
Although many studies have shown that trout farm effluents can affect water quality and macro-invertebrate populations downstream of the farm, few studies have investigated effects on fish. Previous work has suggested that trout farm effluents can affect salmonid parr and embryos but there is no dat...
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2011
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Online Access: | https://doi.org/10.1016/j.aquaculture.2011.11.046 https://researchportal.port.ac.uk/portal/en/publications/do-trout-farm-effluents-affect-atlantic-salmon-smolts-preliminary-studies-using-caged-salmon-smolts(ad0cd907-2148-4b6c-be2e-95b4c8670d56).html |
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ftunivportsmpubl:oai:researchportal.port.ac.uk:publications/ad0cd907-2148-4b6c-be2e-95b4c8670d56 2023-05-15T15:31:40+02:00 Do trout farm effluents affect Atlantic salmon smolts? preliminary studies using caged salmon smolts Waring, Colin Moore, A. Best, J. Crooks, N. Crooks, L. 2011-12-08 https://doi.org/10.1016/j.aquaculture.2011.11.046 https://researchportal.port.ac.uk/portal/en/publications/do-trout-farm-effluents-affect-atlantic-salmon-smolts-preliminary-studies-using-caged-salmon-smolts(ad0cd907-2148-4b6c-be2e-95b4c8670d56).html eng eng info:eu-repo/semantics/restrictedAccess Waring , C , Moore , A , Best , J , Crooks , N & Crooks , L 2011 , ' Do trout farm effluents affect Atlantic salmon smolts? preliminary studies using caged salmon smolts ' Aquaculture . DOI:10.1016/j.aquaculture.2011.11.046 /dk/atira/pure/core/subjects/biology Biology article 2011 ftunivportsmpubl https://doi.org/10.1016/j.aquaculture.2011.11.046 2017-09-28T19:30:13Z Although many studies have shown that trout farm effluents can affect water quality and macro-invertebrate populations downstream of the farm, few studies have investigated effects on fish. Previous work has suggested that trout farm effluents can affect salmonid parr and embryos but there is no data as to whether they affect salmonid smolts. In this experiment, Atlantic salmon smolts were caged upstream and downstream of trout farm effluents for 3 days on two UK Rivers and compared against hatchery controls in two years (2005–2006). No persistent effects on plasma osmolality, plasma sodium, plasma chloride, condition factor and hepato-somatic indices were observed, although there were variations in responses between years. No effects of the effluents were observed on gill Na+K+ATPase activity or plasma thyroid hormones. There was evidence that fish placed downstream of the fish farms had modified plasma potassium regulation, although the relative influence of the fish farm effluents on the physiology compared to other compounds in the river has not been determined. Only one of the smolts (5%) caged downstream of the effluents died and there was little effect on plasma ionoregulatory and osmoregulatory indices, but mortalities increased when the smolts were given a 48 h seawater challenge. However, it is possible that other compounds within the river in addition to the fish farm effluents may have influenced the survival of the smolts. Article in Journal/Newspaper Atlantic salmon University of Portsmouth: Portsmouth Research Portal Aquaculture 362-363 209 215 |
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Open Polar |
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University of Portsmouth: Portsmouth Research Portal |
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ftunivportsmpubl |
language |
English |
topic |
/dk/atira/pure/core/subjects/biology Biology |
spellingShingle |
/dk/atira/pure/core/subjects/biology Biology Waring, Colin Moore, A. Best, J. Crooks, N. Crooks, L. Do trout farm effluents affect Atlantic salmon smolts? preliminary studies using caged salmon smolts |
topic_facet |
/dk/atira/pure/core/subjects/biology Biology |
description |
Although many studies have shown that trout farm effluents can affect water quality and macro-invertebrate populations downstream of the farm, few studies have investigated effects on fish. Previous work has suggested that trout farm effluents can affect salmonid parr and embryos but there is no data as to whether they affect salmonid smolts. In this experiment, Atlantic salmon smolts were caged upstream and downstream of trout farm effluents for 3 days on two UK Rivers and compared against hatchery controls in two years (2005–2006). No persistent effects on plasma osmolality, plasma sodium, plasma chloride, condition factor and hepato-somatic indices were observed, although there were variations in responses between years. No effects of the effluents were observed on gill Na+K+ATPase activity or plasma thyroid hormones. There was evidence that fish placed downstream of the fish farms had modified plasma potassium regulation, although the relative influence of the fish farm effluents on the physiology compared to other compounds in the river has not been determined. Only one of the smolts (5%) caged downstream of the effluents died and there was little effect on plasma ionoregulatory and osmoregulatory indices, but mortalities increased when the smolts were given a 48 h seawater challenge. However, it is possible that other compounds within the river in addition to the fish farm effluents may have influenced the survival of the smolts. |
format |
Article in Journal/Newspaper |
author |
Waring, Colin Moore, A. Best, J. Crooks, N. Crooks, L. |
author_facet |
Waring, Colin Moore, A. Best, J. Crooks, N. Crooks, L. |
author_sort |
Waring, Colin |
title |
Do trout farm effluents affect Atlantic salmon smolts? preliminary studies using caged salmon smolts |
title_short |
Do trout farm effluents affect Atlantic salmon smolts? preliminary studies using caged salmon smolts |
title_full |
Do trout farm effluents affect Atlantic salmon smolts? preliminary studies using caged salmon smolts |
title_fullStr |
Do trout farm effluents affect Atlantic salmon smolts? preliminary studies using caged salmon smolts |
title_full_unstemmed |
Do trout farm effluents affect Atlantic salmon smolts? preliminary studies using caged salmon smolts |
title_sort |
do trout farm effluents affect atlantic salmon smolts? preliminary studies using caged salmon smolts |
publishDate |
2011 |
url |
https://doi.org/10.1016/j.aquaculture.2011.11.046 https://researchportal.port.ac.uk/portal/en/publications/do-trout-farm-effluents-affect-atlantic-salmon-smolts-preliminary-studies-using-caged-salmon-smolts(ad0cd907-2148-4b6c-be2e-95b4c8670d56).html |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
Waring , C , Moore , A , Best , J , Crooks , N & Crooks , L 2011 , ' Do trout farm effluents affect Atlantic salmon smolts? preliminary studies using caged salmon smolts ' Aquaculture . DOI:10.1016/j.aquaculture.2011.11.046 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.aquaculture.2011.11.046 |
container_title |
Aquaculture |
container_volume |
362-363 |
container_start_page |
209 |
op_container_end_page |
215 |
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1766362196535672832 |