Individual‐based modelling of hydropeaking effects on brown trout and Atlantic salmon in a regulated river
Abstract We developed an individual‐based model (IBM) to understand the effects of hydropeaking on growth, survival and distribution of age 0+ to 1+ juveniles for high‐conservation value populations of native brown trout ( Salmo trutta ) and Atlantic salmon ( S. salar ) in river Gullspång, Sweden. W...
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crwiley:10.1002/rra.4037 2024-09-09T19:30:30+00:00 Individual‐based modelling of hydropeaking effects on brown trout and Atlantic salmon in a regulated river Hajiesmaeili, Mahboobeh Addo, Louis Watz, Johan Railsback, Steven F. Piccolo, John J. Knowledge Foundation Svenska Forskningsrådet Formas Svenska Forskningsrådet Formas 2022 http://dx.doi.org/10.1002/rra.4037 https://onlinelibrary.wiley.com/doi/pdf/10.1002/rra.4037 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/rra.4037 en eng Wiley http://creativecommons.org/licenses/by/4.0/ River Research and Applications volume 39, issue 3, page 522-537 ISSN 1535-1459 1535-1467 journal-article 2022 crwiley https://doi.org/10.1002/rra.4037 2024-06-25T04:12:43Z Abstract We developed an individual‐based model (IBM) to understand the effects of hydropeaking on growth, survival and distribution of age 0+ to 1+ juveniles for high‐conservation value populations of native brown trout ( Salmo trutta ) and Atlantic salmon ( S. salar ) in river Gullspång, Sweden. We parameterized and applied inSTREAM (7.2‐SD) and calibrated the model by comparing predicted versus observed growth under the current hydropeaking regime ( n =>1,200 model fish for 365 days). Our objective was to model growth, survival and distribution under flow scenarios with and without hydropeaking. We observed that hydropeaking generally resulted in modest (~10%) negative effects on growth and survival of both species. Survival was more affected than was growth, smaller fish more affected than larger fish. On‐peak (high) hydropeaking flows resulted in less profitable feeding conditions (less growth) and higher predation (lower survival). Thus, inSTREAM 7.2‐SD appears to capture ecologically‐relevant behavioral patterns under hydropeaking, for example, habitat selection, in response to rapid flow changes. Understanding such patterns for large rivers via manipulative field studies, even if possible, would be time‐consuming and costly. Our study demonstrates the potential of IBMs as powerful tools for testing research questions and assessing and prioritizing alternative management strategies in regulated rivers. Article in Journal/Newspaper Atlantic salmon Wiley Online Library River Research and Applications |
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Wiley Online Library |
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English |
description |
Abstract We developed an individual‐based model (IBM) to understand the effects of hydropeaking on growth, survival and distribution of age 0+ to 1+ juveniles for high‐conservation value populations of native brown trout ( Salmo trutta ) and Atlantic salmon ( S. salar ) in river Gullspång, Sweden. We parameterized and applied inSTREAM (7.2‐SD) and calibrated the model by comparing predicted versus observed growth under the current hydropeaking regime ( n =>1,200 model fish for 365 days). Our objective was to model growth, survival and distribution under flow scenarios with and without hydropeaking. We observed that hydropeaking generally resulted in modest (~10%) negative effects on growth and survival of both species. Survival was more affected than was growth, smaller fish more affected than larger fish. On‐peak (high) hydropeaking flows resulted in less profitable feeding conditions (less growth) and higher predation (lower survival). Thus, inSTREAM 7.2‐SD appears to capture ecologically‐relevant behavioral patterns under hydropeaking, for example, habitat selection, in response to rapid flow changes. Understanding such patterns for large rivers via manipulative field studies, even if possible, would be time‐consuming and costly. Our study demonstrates the potential of IBMs as powerful tools for testing research questions and assessing and prioritizing alternative management strategies in regulated rivers. |
author2 |
Knowledge Foundation Svenska Forskningsrådet Formas Svenska Forskningsrådet Formas |
format |
Article in Journal/Newspaper |
author |
Hajiesmaeili, Mahboobeh Addo, Louis Watz, Johan Railsback, Steven F. Piccolo, John J. |
spellingShingle |
Hajiesmaeili, Mahboobeh Addo, Louis Watz, Johan Railsback, Steven F. Piccolo, John J. Individual‐based modelling of hydropeaking effects on brown trout and Atlantic salmon in a regulated river |
author_facet |
Hajiesmaeili, Mahboobeh Addo, Louis Watz, Johan Railsback, Steven F. Piccolo, John J. |
author_sort |
Hajiesmaeili, Mahboobeh |
title |
Individual‐based modelling of hydropeaking effects on brown trout and Atlantic salmon in a regulated river |
title_short |
Individual‐based modelling of hydropeaking effects on brown trout and Atlantic salmon in a regulated river |
title_full |
Individual‐based modelling of hydropeaking effects on brown trout and Atlantic salmon in a regulated river |
title_fullStr |
Individual‐based modelling of hydropeaking effects on brown trout and Atlantic salmon in a regulated river |
title_full_unstemmed |
Individual‐based modelling of hydropeaking effects on brown trout and Atlantic salmon in a regulated river |
title_sort |
individual‐based modelling of hydropeaking effects on brown trout and atlantic salmon in a regulated river |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1002/rra.4037 https://onlinelibrary.wiley.com/doi/pdf/10.1002/rra.4037 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/rra.4037 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
River Research and Applications volume 39, issue 3, page 522-537 ISSN 1535-1459 1535-1467 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/rra.4037 |
container_title |
River Research and Applications |
_version_ |
1809899474337660928 |