Temperature-associated habitat selection in a cold-water marine fish.
1. Habitat selection is a complex process, which involves behavioural decisions guided by the multiple needs and constraints faced by individuals. Climate-induced changes in environmental conditions may alter those trade-offs and resulting habitat use patterns. 2. In this study, we investigated the...
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2015
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ftoslouniv:oai:www.duo.uio.no:10852/48437 2023-05-15T15:27:35+02:00 Temperature-associated habitat selection in a cold-water marine fish. Freitas, Carla Olsen, Esben Moland Knutsen, Halvor Albretsen, Jon Moland, Even 2015-10-23T09:06:17Z http://hdl.handle.net/10852/48437 http://urn.nb.no/URN:NBN:no-52335 https://doi.org/10.1111/1365-2656.12458 EN eng Blackwell Publishers http://urn.nb.no/URN:NBN:no-52335 Freitas, Carla Olsen, Esben Moland Knutsen, Halvor Albretsen, Jon Moland, Even . Temperature-associated habitat selection in a cold-water marine fish. Journal of Animal Ecology. 2015 http://hdl.handle.net/10852/48437 1282972 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal of Animal Ecology&rft.volume=&rft.spage=&rft.date=2015 Journal of Animal Ecology 10 http://dx.doi.org/10.1111/1365-2656.12458 URN:NBN:no-52335 Fulltext https://www.duo.uio.no/bitstream/handle/10852/48437/2/Freitas_et_al-2015-Journal_of_Animal_Ecology.pdf Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ CC-BY-NC-ND 0021-8790 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2015 ftoslouniv https://doi.org/10.1111/1365-2656.12458 2020-06-21T08:49:20Z 1. Habitat selection is a complex process, which involves behavioural decisions guided by the multiple needs and constraints faced by individuals. Climate-induced changes in environmental conditions may alter those trade-offs and resulting habitat use patterns. 2. In this study, we investigated the effect of sea temperature on habitat selection and habitat use of acoustically tagged Atlantic cod (Gadus morhua) at the Norwegian Skagerrak coast. 3. Significant relationships between ocean temperature and habitat selection and use were found. Under favourable sea temperature thresholds (<16 °C), cod selected vegetated habitats, such as eelgrass and macroalgae beds, available in shallow areas. Selection for those habitats was especially high at night, when cod tended to ascend to shallower areas, presumably to feed. Selection and use of those habitats decreased significantly as temperature rose. Under increased sea surface temperature conditions, cod were absent from vegetated shallow habitats, both during the day and night, and selected instead non-vegetated rocky bottoms and sand habitats, available in deeper, colder areas. 4. This study shows the dynamic nature of habitat selection and strongly suggests that cod in this region have to trade off food availability against favourable temperature conditions. Future increases in ocean temperature are expected to further influence the spatial behaviour of marine fish, potentially affecting individual fitness and population dynamics. Article in Journal/Newspaper atlantic cod Gadus morhua Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Journal of Animal Ecology 85 3 628 637 |
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Open Polar |
collection |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
description |
1. Habitat selection is a complex process, which involves behavioural decisions guided by the multiple needs and constraints faced by individuals. Climate-induced changes in environmental conditions may alter those trade-offs and resulting habitat use patterns. 2. In this study, we investigated the effect of sea temperature on habitat selection and habitat use of acoustically tagged Atlantic cod (Gadus morhua) at the Norwegian Skagerrak coast. 3. Significant relationships between ocean temperature and habitat selection and use were found. Under favourable sea temperature thresholds (<16 °C), cod selected vegetated habitats, such as eelgrass and macroalgae beds, available in shallow areas. Selection for those habitats was especially high at night, when cod tended to ascend to shallower areas, presumably to feed. Selection and use of those habitats decreased significantly as temperature rose. Under increased sea surface temperature conditions, cod were absent from vegetated shallow habitats, both during the day and night, and selected instead non-vegetated rocky bottoms and sand habitats, available in deeper, colder areas. 4. This study shows the dynamic nature of habitat selection and strongly suggests that cod in this region have to trade off food availability against favourable temperature conditions. Future increases in ocean temperature are expected to further influence the spatial behaviour of marine fish, potentially affecting individual fitness and population dynamics. |
format |
Article in Journal/Newspaper |
author |
Freitas, Carla Olsen, Esben Moland Knutsen, Halvor Albretsen, Jon Moland, Even |
spellingShingle |
Freitas, Carla Olsen, Esben Moland Knutsen, Halvor Albretsen, Jon Moland, Even Temperature-associated habitat selection in a cold-water marine fish. |
author_facet |
Freitas, Carla Olsen, Esben Moland Knutsen, Halvor Albretsen, Jon Moland, Even |
author_sort |
Freitas, Carla |
title |
Temperature-associated habitat selection in a cold-water marine fish. |
title_short |
Temperature-associated habitat selection in a cold-water marine fish. |
title_full |
Temperature-associated habitat selection in a cold-water marine fish. |
title_fullStr |
Temperature-associated habitat selection in a cold-water marine fish. |
title_full_unstemmed |
Temperature-associated habitat selection in a cold-water marine fish. |
title_sort |
temperature-associated habitat selection in a cold-water marine fish. |
publisher |
Blackwell Publishers |
publishDate |
2015 |
url |
http://hdl.handle.net/10852/48437 http://urn.nb.no/URN:NBN:no-52335 https://doi.org/10.1111/1365-2656.12458 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
0021-8790 |
op_relation |
http://urn.nb.no/URN:NBN:no-52335 Freitas, Carla Olsen, Esben Moland Knutsen, Halvor Albretsen, Jon Moland, Even . Temperature-associated habitat selection in a cold-water marine fish. Journal of Animal Ecology. 2015 http://hdl.handle.net/10852/48437 1282972 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal of Animal Ecology&rft.volume=&rft.spage=&rft.date=2015 Journal of Animal Ecology 10 http://dx.doi.org/10.1111/1365-2656.12458 URN:NBN:no-52335 Fulltext https://www.duo.uio.no/bitstream/handle/10852/48437/2/Freitas_et_al-2015-Journal_of_Animal_Ecology.pdf |
op_rights |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1111/1365-2656.12458 |
container_title |
Journal of Animal Ecology |
container_volume |
85 |
container_issue |
3 |
container_start_page |
628 |
op_container_end_page |
637 |
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1766358010896056320 |