Enriched rearing environment enhances fitness-related traits of salmonid fishes facing multiple biological interactions
Karvonen, A., Klemme, I., Räihä, V., & Hyvärinen, P. (2023). Enriched rearing environment enhances fitness-related traits of salmonid fishes facing multiple biological interactions. Canadian Journal of Fisheries and Aquatic Sciences, 80(11). https://doi.org/10.1139/cjfas-2023-0083
Julkaistu sarjassa
Canadian Journal of Fisheries and Aquatic SciencesPäivämäärä
2023Tekijänoikeudet
© Canadian Science Publishing
To improve stocking success in threatened populations, captive-reared animals are often familiarized to natural environment. However, whether such actions improve ability to cope with multiple biological interactions, such as competition, predation and parasitism that impose contradicting pressures on decision-making, is not well understood. Here, we explored short-term (4 weeks) and long-term (10 months) effects of enriched rearing on fitness-related traits of Atlantic salmon (Salmo salar). Salmon with different backgrounds of enrichment and parasite infection (eye fluke Diplostomum pseudospathaceum) were released to semi-natural ponds and monitored for activity, growth and predation susceptibility. Fish from enriched rearing showed lower short-term activity and higher short-term growth, suggesting that they coped better with novel conditions. However, predation susceptibility, and longer-term growth and survival, were unaffected by rearing treatment. Importantly, parasitism did not remove the positive effect of enrichment on growth, although the infection decreased both short-term and long-term growth and survival. These results suggest that enriched rearing can enhance fitness-related traits of stocked fish particularly during the critical early days, which can have important implications for stock enhancement activities.
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Julkaisija
Canadian Science PublishingISSN Hae Julkaisufoorumista
0706-652XAsiasanat
Julkaisuun liittyvä(t) tutkimusaineisto(t)
Karvonen, Anssi; Klemme, Ines; Räihä, Ville; Hyvärinen, Pekka. (2023). Original data for publication: Enriched rearing environment enhances fitness-related traits of salmonid fishes facing multiple biological interactions. V. 10.8.2023. University of Jyväskylä. https://doi.org/10.17011/jyx/dataset/88514. https://urn.fi/URN:NBN:fi:jyu-202308104628Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/184221402
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Näytä kaikki kuvailutiedotKokoelmat
Rahoittaja(t)
Suomen Akatemia; Lapin ELY-keskusRahoitusohjelmat(t)
Akatemiatutkijan tutkimuskulut, SA; Akatemiahanke, SA; MuutLisätietoja rahoituksesta
This study was supported by the Academy of Finland (grants #263864, #292736, #310632 for AK) and by European Maritime and Fisheries Fund (#43521) for PH.Lisenssi
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Original data for publication: Enriched rearing environment enhances fitness-related traits of salmonid fishes facing multiple biological interactions
Karvonen, Anssi; Klemme, Ines; Räihä, Ville; Hyvärinen, Pekka (University of Jyväskylä, 2023)<p>The data file contains original data for two experiments described in the publication: Karvonen A., Klemme I., Räihä V., Hyvärinen P. 2023. Enriched rearing environment enhances fitness-related traits of salmonid ... -
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