Effects of intra- and interspecific competition and hydropeaking on growth of juvenile Atlantic salmon (Salmo salar)
The effects of hydropeaking and intra- and interspecific competition on the growth performance (growth in length, mass and lipid content) of juvenile Atlantic salmon Salmo salar and brown trout Salmo trutta were studied in six experimental channels (three experiencing hydropeaking and three controls...
Published in: | Ecology of Freshwater Fish |
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Online Access: | http://hdl.handle.net/11250/2468631 https://doi.org/10.1111/eff.12258 |
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/2468631 2023-05-15T15:28:42+02:00 Effects of intra- and interspecific competition and hydropeaking on growth of juvenile Atlantic salmon (Salmo salar) Puffer, Michael Berg, Ole Kristian Huusko, Ari Vehanen, Teppo Einum, Sigurd 2017 http://hdl.handle.net/11250/2468631 https://doi.org/10.1111/eff.12258 eng eng Wiley Ecology of Freshwater Fish. 2017, 26 (1), 99-107. urn:issn:0906-6691 http://hdl.handle.net/11250/2468631 https://doi.org/10.1111/eff.12258 cristin:1482654 99-107 26 Ecology of Freshwater Fish 1 Journal article 2017 ftntnutrondheimi https://doi.org/10.1111/eff.12258 2019-09-17T06:53:15Z The effects of hydropeaking and intra- and interspecific competition on the growth performance (growth in length, mass and lipid content) of juvenile Atlantic salmon Salmo salar and brown trout Salmo trutta were studied in six experimental channels (three experiencing hydropeaking and three controls with a stable discharge of water). Changes in the water-covered area in the hydropeaking channels were small to avoid fish stranding. Each channel was divided into three similar-sized sections and stocked with either low or high density of Atlantic salmon, or a mix of Atlantic salmon and brown trout, with the density of the latter equalling the high-density treatment of Atlantic salmon. A marked effect of competition was visible as salmon in the low-density treatment were significantly larger (27–33%) and had a higher mass (30–38%) than salmon in both the high-density salmon treatment and the high-density salmon and trout treatment. Hydropeaking had only minor and insignificant effects on the growth performance: overall final length, mass and body lipid content in the salmon experiencing hydropeaking differed by −9%, −7% and +2% compared with controls. Furthermore, there was no indication that the competitive regime influenced hydropeaking effects. The increase in both intra- and interspecific competition among the juvenile salmon had a pronounced and significant effect on growth. Our study adds to the growing evidence that energetic consequences of hydropeaking are likely to be small for Atlantic salmon and that stress and mortality associated with stranding represent the main source of population impact. submittedVersion This is the pre-peer reviewed version of the following article: [Effects of intra- and interspecific competition and hydropeaking on growth of juvenile Atlantic salmon (Salmo salar)], which has been published in final form at [http://onlinelibrary.wiley.com/doi/10.1111/eff.12258/abstract]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. Article in Journal/Newspaper Atlantic salmon Salmo salar NTNU Open Archive (Norwegian University of Science and Technology) Ecology of Freshwater Fish 26 1 99 107 |
institution |
Open Polar |
collection |
NTNU Open Archive (Norwegian University of Science and Technology) |
op_collection_id |
ftntnutrondheimi |
language |
English |
description |
The effects of hydropeaking and intra- and interspecific competition on the growth performance (growth in length, mass and lipid content) of juvenile Atlantic salmon Salmo salar and brown trout Salmo trutta were studied in six experimental channels (three experiencing hydropeaking and three controls with a stable discharge of water). Changes in the water-covered area in the hydropeaking channels were small to avoid fish stranding. Each channel was divided into three similar-sized sections and stocked with either low or high density of Atlantic salmon, or a mix of Atlantic salmon and brown trout, with the density of the latter equalling the high-density treatment of Atlantic salmon. A marked effect of competition was visible as salmon in the low-density treatment were significantly larger (27–33%) and had a higher mass (30–38%) than salmon in both the high-density salmon treatment and the high-density salmon and trout treatment. Hydropeaking had only minor and insignificant effects on the growth performance: overall final length, mass and body lipid content in the salmon experiencing hydropeaking differed by −9%, −7% and +2% compared with controls. Furthermore, there was no indication that the competitive regime influenced hydropeaking effects. The increase in both intra- and interspecific competition among the juvenile salmon had a pronounced and significant effect on growth. Our study adds to the growing evidence that energetic consequences of hydropeaking are likely to be small for Atlantic salmon and that stress and mortality associated with stranding represent the main source of population impact. submittedVersion This is the pre-peer reviewed version of the following article: [Effects of intra- and interspecific competition and hydropeaking on growth of juvenile Atlantic salmon (Salmo salar)], which has been published in final form at [http://onlinelibrary.wiley.com/doi/10.1111/eff.12258/abstract]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. |
format |
Article in Journal/Newspaper |
author |
Puffer, Michael Berg, Ole Kristian Huusko, Ari Vehanen, Teppo Einum, Sigurd |
spellingShingle |
Puffer, Michael Berg, Ole Kristian Huusko, Ari Vehanen, Teppo Einum, Sigurd Effects of intra- and interspecific competition and hydropeaking on growth of juvenile Atlantic salmon (Salmo salar) |
author_facet |
Puffer, Michael Berg, Ole Kristian Huusko, Ari Vehanen, Teppo Einum, Sigurd |
author_sort |
Puffer, Michael |
title |
Effects of intra- and interspecific competition and hydropeaking on growth of juvenile Atlantic salmon (Salmo salar) |
title_short |
Effects of intra- and interspecific competition and hydropeaking on growth of juvenile Atlantic salmon (Salmo salar) |
title_full |
Effects of intra- and interspecific competition and hydropeaking on growth of juvenile Atlantic salmon (Salmo salar) |
title_fullStr |
Effects of intra- and interspecific competition and hydropeaking on growth of juvenile Atlantic salmon (Salmo salar) |
title_full_unstemmed |
Effects of intra- and interspecific competition and hydropeaking on growth of juvenile Atlantic salmon (Salmo salar) |
title_sort |
effects of intra- and interspecific competition and hydropeaking on growth of juvenile atlantic salmon (salmo salar) |
publisher |
Wiley |
publishDate |
2017 |
url |
http://hdl.handle.net/11250/2468631 https://doi.org/10.1111/eff.12258 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
99-107 26 Ecology of Freshwater Fish 1 |
op_relation |
Ecology of Freshwater Fish. 2017, 26 (1), 99-107. urn:issn:0906-6691 http://hdl.handle.net/11250/2468631 https://doi.org/10.1111/eff.12258 cristin:1482654 |
op_doi |
https://doi.org/10.1111/eff.12258 |
container_title |
Ecology of Freshwater Fish |
container_volume |
26 |
container_issue |
1 |
container_start_page |
99 |
op_container_end_page |
107 |
_version_ |
1766359047963934720 |