The association between parasite infection and growth rates in Arctic charr: do fast growing fish have more parasites?
Accepted manuscript version. Final version published in Hydrobiologica, 840 (1), 261-270, is avaialble at https://doi.org/10.1007/s10750-018-3865-8. Trophically transmitted parasites are known to impair fish growth in experimental studies, but this is not well documented in natural populations. For...
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Online Access: | https://hdl.handle.net/10037/16796 https://doi.org/10.1007/s10750-018-3865-8 |
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ftunivtroemsoe:oai:munin.uit.no:10037/16796 2023-05-15T14:25:33+02:00 The association between parasite infection and growth rates in Arctic charr: do fast growing fish have more parasites? Henriksen, Eirik Haugstvedt Smalås, Aslak Strøm, John Fredrik Knudsen, Rune 2019-01-01 https://hdl.handle.net/10037/16796 https://doi.org/10.1007/s10750-018-3865-8 eng eng Begell House Hydrobiologia Henriksen EH, Smalås A, Strøm JF, Knudsen R. The association between parasite infection and growth rates in Arctic charr: do fast growing fish have more parasites?. Hydrobiologia. 2019;840(1):261-270 FRIDAID 1691373 doi:10.1007/s10750-018-3865-8 0018-8158 1573-5117 https://hdl.handle.net/10037/16796 openAccess VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 Journal article Tidsskriftartikkel Peer reviewed acceptedVersion 2019 ftunivtroemsoe https://doi.org/10.1007/s10750-018-3865-8 2021-06-25T17:56:57Z Accepted manuscript version. Final version published in Hydrobiologica, 840 (1), 261-270, is avaialble at https://doi.org/10.1007/s10750-018-3865-8. Trophically transmitted parasites are known to impair fish growth in experimental studies, but this is not well documented in natural populations. For Arctic charr [ Salvelinus alpinus (L.)], individual growth is positively correlated with food consumption. However, increased food consumption will increase the exposure to trophically transmitted parasites. Using a correlative approach, we explore the association between parasite abundance and the individual growth of Arctic charr from five lakes within the same watercourse. The studied parasite species differ in their life cycles and cost to the host. We predicted a positive association between parasite abundance and fish growth for parasites of low pathogenicity reflecting high consumption rates, and a negative association at higher parasite abundances for more costly parasites. We found no direct negative associations between parasite abundance and fish growth. The relationship between parasite abundance and growth was linearly positive for the low costly Crepidostomum sp. and concave for the more costly Eubothrium salvelini . In natural fish populations, the negative effects of parasites on fish growth might be outweighed by the energy assimilated from feeding on the intermediate host. However, experimental studies with varying food consumption regimes are needed to determine the mechanisms underlying our observations. Article in Journal/Newspaper Arctic Arctic charr Arctic Salvelinus alpinus University of Tromsø: Munin Open Research Archive Arctic Hydrobiologia 840 1 261 270 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 |
spellingShingle |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 Henriksen, Eirik Haugstvedt Smalås, Aslak Strøm, John Fredrik Knudsen, Rune The association between parasite infection and growth rates in Arctic charr: do fast growing fish have more parasites? |
topic_facet |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 |
description |
Accepted manuscript version. Final version published in Hydrobiologica, 840 (1), 261-270, is avaialble at https://doi.org/10.1007/s10750-018-3865-8. Trophically transmitted parasites are known to impair fish growth in experimental studies, but this is not well documented in natural populations. For Arctic charr [ Salvelinus alpinus (L.)], individual growth is positively correlated with food consumption. However, increased food consumption will increase the exposure to trophically transmitted parasites. Using a correlative approach, we explore the association between parasite abundance and the individual growth of Arctic charr from five lakes within the same watercourse. The studied parasite species differ in their life cycles and cost to the host. We predicted a positive association between parasite abundance and fish growth for parasites of low pathogenicity reflecting high consumption rates, and a negative association at higher parasite abundances for more costly parasites. We found no direct negative associations between parasite abundance and fish growth. The relationship between parasite abundance and growth was linearly positive for the low costly Crepidostomum sp. and concave for the more costly Eubothrium salvelini . In natural fish populations, the negative effects of parasites on fish growth might be outweighed by the energy assimilated from feeding on the intermediate host. However, experimental studies with varying food consumption regimes are needed to determine the mechanisms underlying our observations. |
format |
Article in Journal/Newspaper |
author |
Henriksen, Eirik Haugstvedt Smalås, Aslak Strøm, John Fredrik Knudsen, Rune |
author_facet |
Henriksen, Eirik Haugstvedt Smalås, Aslak Strøm, John Fredrik Knudsen, Rune |
author_sort |
Henriksen, Eirik Haugstvedt |
title |
The association between parasite infection and growth rates in Arctic charr: do fast growing fish have more parasites? |
title_short |
The association between parasite infection and growth rates in Arctic charr: do fast growing fish have more parasites? |
title_full |
The association between parasite infection and growth rates in Arctic charr: do fast growing fish have more parasites? |
title_fullStr |
The association between parasite infection and growth rates in Arctic charr: do fast growing fish have more parasites? |
title_full_unstemmed |
The association between parasite infection and growth rates in Arctic charr: do fast growing fish have more parasites? |
title_sort |
association between parasite infection and growth rates in arctic charr: do fast growing fish have more parasites? |
publisher |
Begell House |
publishDate |
2019 |
url |
https://hdl.handle.net/10037/16796 https://doi.org/10.1007/s10750-018-3865-8 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic charr Arctic Salvelinus alpinus |
genre_facet |
Arctic Arctic charr Arctic Salvelinus alpinus |
op_relation |
Hydrobiologia Henriksen EH, Smalås A, Strøm JF, Knudsen R. The association between parasite infection and growth rates in Arctic charr: do fast growing fish have more parasites?. Hydrobiologia. 2019;840(1):261-270 FRIDAID 1691373 doi:10.1007/s10750-018-3865-8 0018-8158 1573-5117 https://hdl.handle.net/10037/16796 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1007/s10750-018-3865-8 |
container_title |
Hydrobiologia |
container_volume |
840 |
container_issue |
1 |
container_start_page |
261 |
op_container_end_page |
270 |
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1766297984181469184 |