Persistent Identifier
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doi:10.18710/LIYHRV |
Publication Date
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2024-01-31 |
Title
| Replication data for: Balancing risks and rewards of alternate strategies in the seaward extent, duration and timing of fjord use in contemporary anadromy of brown trout (Salmo trutta) |
Author
| Hawley, Kate L. (Norwegian University of Life Sciences (NMBU)) - ORCID: 0000-0002-2981-5452
Urke, Henning A. (AquaLife R&D) - ORCID: 0000-0002-0310-4775
Kristensen, Torstein (Nord University) - ORCID: 0000-0002-2640-4260
Haugen, Thrond O. (Norwegian University of Life Sciences (NMBU)) |
Point of Contact
|
Use email button above to contact.
Hawley, Kate L. (Norwegian University of Life Sciences (NMBU)) |
Description
| Anadromy comprises a successful life-cycle adaptation for salmonids, with marine migration providing improved feeding opportunities and thus improved growth. These rewards are balanced against costs from increased energy expenditure and mortality risk. Anthropogenic-induced environmental changes that reduce benefits and/or increase costs of migration e.g., aquaculture and hydropower, may therefore result in adaptations disfavouring anadromy. We tagged brown trout (Salmo trutta) smolts (N = 175) and veteran migrants (N = 342), from five adjacent riverine populations located in Sognefjorden, the longest Norwegian fjord-system supporting anadromous brown trout populations (209 km). Over four years, 138 acoustic telemetry receivers were deployed to track migrations of tagged individuals from freshwater and throughout Sognefjorden. Detected movements were used to fit migration models and multi-state mark-recapture models of survival and movement for each life-stage. Seaward migration distance was modelled to examine the fitness consequences from alternate migration strategies, with these models used to simulate the extent of fjord-use by individuals and accompanying growth, fecundity and survival consequences. We compared these findings with mark-recapture data collected prior to aquaculture and hydropower development. (2023-11-26) |
Subject
| Earth and Environmental Sciences |
Keyword
| Acoustic telemetry
Conditional Arnason-Schwarz
Anadromy
Migration
Mark-recapture
Salmo trutta
Project KUSTUS |
Related Publication
| Hawley, K.L., Urke, H.A., Kristensen, T. et al. Balancing risks and rewards of alternate strategies in the seaward extent, duration and timing of fjord use in contemporary anadromy of brown trout (Salmo trutta). BMC Ecology and Evolution 24, 27 (2024). doi: 10.1186/s12862-023-02179-x https://bmcecolevol.biomedcentral.com/articles/10.1186/s12862-023-02179-x#citeas |
Language
| English; Norwegian |
Producer
| Norwegian University of Life Sciences (NMBU) (NMBU) https://www.nmbu.no/en |
Production Location
| Sognefjorden |
Contributor
| Project Manager : Urke, Henning A.
Researcher : Kristensen, Torstein
Supervisor : Haugen, Thrond O.
Researcher : Hawley, Kate L. |
Funding Information
| Norwegian University for Life Sciences: 1302051230
Sogn and Fjordane County authority
E- Co Energi AS
Østfold Energi AS
Luster municipality
Årdal municipality
County Governor of Sogn and Fjordane
Mowi AS
Osland Havbruk AS
Sulefisk AS |
Distributor
| Norwegian University of Life Sciences (NMBU) (NMBU) https://dataverse.no/dataverse/nmbu |
Depositor
| Hawley, Kate Louise |
Deposit Date
| 2023-11-26 |
Time Period
| Start Date: 2012-01-01 ; End Date: 2015-12-31 |
Date of Collection
| Start Date: 2012-01-01 ; End Date: 2015-12-31 |
Data Type
| Acoustic telemetry data |
Software
| R studio, Version: 4.2.0
MARK, Version: 6.2 |
Origin of Historical Sources
| Leiv Rosseland and Bjørn Olav Rosseland- Professor emeritus in Ecotoxicology, Norwegian University of Life Sciences Kristensen T, Urke H, Haugen T, Rustadbakken A, Alfredsen JA, Alfredsen K, et al. Sea trout (Salmo trutta) from River Lærdalselva, W Norway: A comparison of growth and migratory patterns in older and recent studies (In Norwegian). NIVA Report: 6122; 2011. |