Growth and mortality of sympatric Atlantic salmon and brown trout fry in fluctuating and stable flows
Sub-daily fluctuations in streamflow may have adverse effects on the biota downstream of dams in hydropeaking-regulated rivers. Although the stranding of salmonid fry is one documented effect of hydropeaking, little is known about the species-specific behavioural and subsequent growth effects of sub...
Published in: | Ecology of Freshwater Fish |
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Language: | English |
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Karlstads universitet, Institutionen för miljö- och livsvetenskaper (from 2013)
2023
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Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-92262 https://doi.org/10.1111/eff.12685 |
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ftkarlstadsuniv:oai:DiVA.org:kau-92262 2023-07-16T03:57:28+02:00 Growth and mortality of sympatric Atlantic salmon and brown trout fry in fluctuating and stable flows Addo, Louis Hajiesmaeili, Mahboobeh Piccolo, John Watz, Johan 2023 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-92262 https://doi.org/10.1111/eff.12685 eng eng Karlstads universitet, Institutionen för miljö- och livsvetenskaper (from 2013) Ecology of Freshwater Fish, 0906-6691, 2023, 2, s. 282-290 orcid:0000-0001-8416-5766 orcid:0000-0001-9512-3836 orcid:0000-0002-2633-4178 orcid:0000-0002-4417-6636 http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-92262 doi:10.1111/eff.12685 ISI:000871388600001 Scopus 2-s2.0-85140384369 info:eu-repo/semantics/openAccess behaviour hydropeaking Salmo salar Salmo trutta survival Biological Sciences Biologiska vetenskaper Article in journal info:eu-repo/semantics/article text 2023 ftkarlstadsuniv https://doi.org/10.1111/eff.12685 2023-06-26T22:13:40Z Sub-daily fluctuations in streamflow may have adverse effects on the biota downstream of dams in hydropeaking-regulated rivers. Although the stranding of salmonid fry is one documented effect of hydropeaking, little is known about the species-specific behavioural and subsequent growth effects of sub-daily flow fluctuations. We investigated the effects of sub-daily flow fluctuation on growth, mortality and behaviour of sympatric Atlantic salmon (Salmo salar) and brown trout (S. trutta) fry (29–34 mm) in a laboratory experiment. The fluctuating flow treatment negatively affected growth and increased mortality for trout but not for salmon. The level of aggressive behaviour was similar in the fluctuating- and stable-flow treatments. Within the fluctuating flow treatment, there was a trend that more fishes were visibly active above the substrate during low than high flow. These findings suggest that hydropeaking-induced flow fluctuations may affect fry of different salmonid species in different ways and that brown trout fry may be more vulnerable to hydropeaking effects than Atlantic salmon fry. It can therefore be important to consider the possibility of divergent reactions by different fish species under hydropeaking situations and to incorporate species-specific strategies to conserve culturally and economically relevant riverine fish species. Article in Journal/Newspaper Atlantic salmon Salmo salar Karlstad University: Publications (DIVA) Ecology of Freshwater Fish |
institution |
Open Polar |
collection |
Karlstad University: Publications (DIVA) |
op_collection_id |
ftkarlstadsuniv |
language |
English |
topic |
behaviour hydropeaking Salmo salar Salmo trutta survival Biological Sciences Biologiska vetenskaper |
spellingShingle |
behaviour hydropeaking Salmo salar Salmo trutta survival Biological Sciences Biologiska vetenskaper Addo, Louis Hajiesmaeili, Mahboobeh Piccolo, John Watz, Johan Growth and mortality of sympatric Atlantic salmon and brown trout fry in fluctuating and stable flows |
topic_facet |
behaviour hydropeaking Salmo salar Salmo trutta survival Biological Sciences Biologiska vetenskaper |
description |
Sub-daily fluctuations in streamflow may have adverse effects on the biota downstream of dams in hydropeaking-regulated rivers. Although the stranding of salmonid fry is one documented effect of hydropeaking, little is known about the species-specific behavioural and subsequent growth effects of sub-daily flow fluctuations. We investigated the effects of sub-daily flow fluctuation on growth, mortality and behaviour of sympatric Atlantic salmon (Salmo salar) and brown trout (S. trutta) fry (29–34 mm) in a laboratory experiment. The fluctuating flow treatment negatively affected growth and increased mortality for trout but not for salmon. The level of aggressive behaviour was similar in the fluctuating- and stable-flow treatments. Within the fluctuating flow treatment, there was a trend that more fishes were visibly active above the substrate during low than high flow. These findings suggest that hydropeaking-induced flow fluctuations may affect fry of different salmonid species in different ways and that brown trout fry may be more vulnerable to hydropeaking effects than Atlantic salmon fry. It can therefore be important to consider the possibility of divergent reactions by different fish species under hydropeaking situations and to incorporate species-specific strategies to conserve culturally and economically relevant riverine fish species. |
format |
Article in Journal/Newspaper |
author |
Addo, Louis Hajiesmaeili, Mahboobeh Piccolo, John Watz, Johan |
author_facet |
Addo, Louis Hajiesmaeili, Mahboobeh Piccolo, John Watz, Johan |
author_sort |
Addo, Louis |
title |
Growth and mortality of sympatric Atlantic salmon and brown trout fry in fluctuating and stable flows |
title_short |
Growth and mortality of sympatric Atlantic salmon and brown trout fry in fluctuating and stable flows |
title_full |
Growth and mortality of sympatric Atlantic salmon and brown trout fry in fluctuating and stable flows |
title_fullStr |
Growth and mortality of sympatric Atlantic salmon and brown trout fry in fluctuating and stable flows |
title_full_unstemmed |
Growth and mortality of sympatric Atlantic salmon and brown trout fry in fluctuating and stable flows |
title_sort |
growth and mortality of sympatric atlantic salmon and brown trout fry in fluctuating and stable flows |
publisher |
Karlstads universitet, Institutionen för miljö- och livsvetenskaper (from 2013) |
publishDate |
2023 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-92262 https://doi.org/10.1111/eff.12685 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
Ecology of Freshwater Fish, 0906-6691, 2023, 2, s. 282-290 orcid:0000-0001-8416-5766 orcid:0000-0001-9512-3836 orcid:0000-0002-2633-4178 orcid:0000-0002-4417-6636 http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-92262 doi:10.1111/eff.12685 ISI:000871388600001 Scopus 2-s2.0-85140384369 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/eff.12685 |
container_title |
Ecology of Freshwater Fish |
_version_ |
1771544061610557440 |