Cannibalism and protective behavior of eggs in Arctic charr (Salvelinus alpinus)
From video recordings of spawning events, we quantified protective and cannibalistic behavior of Arctic charr occurring immediately after spawning. The number of fish cannibalizing on stray eggs was examined regarding (a) whether more than one male shed milt during the spawning event, that is, wheth...
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Online Access: | https://hdl.handle.net/11250/2829790 https://doi.org/10.1002/ece3.8173 |
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ftnorduniv:oai:nordopen.nord.no:11250/2829790 2024-09-15T17:50:44+00:00 Cannibalism and protective behavior of eggs in Arctic charr (Salvelinus alpinus) Frye, Marilena Egeland, Torvald Blikra Nordeide, Jarle Tryti Folstad, Ivar 2021 application/pdf https://hdl.handle.net/11250/2829790 https://doi.org/10.1002/ece3.8173 eng eng Wiley Frye, M., Egeland, T. B., Nordeide, J. T. & Folstad, I. (2021). Cannibalism and protective behavior of eggs in Arctic charr (Salvelinus alpinus). Ecology and Evolution, 11, 14383– 14391. doi: urn:issn:2045-7758 https://hdl.handle.net/11250/2829790 https://doi.org/10.1002/ece3.8173 cristin:1939806 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2021 The Author(s) 14383– 14391 11 Ecology and Evolution VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 Peer reviewed Journal article 2021 ftnorduniv https://doi.org/10.1002/ece3.8173 2024-07-05T03:04:55Z From video recordings of spawning events, we quantified protective and cannibalistic behavior of Arctic charr occurring immediately after spawning. The number of fish cannibalizing on stray eggs was examined regarding (a) whether more than one male shed milt during the spawning event, that is, whether sperm competition occurred, (b) whether the sperm competition included few or many males, that is, the intensity of sperm competition, and (c) the density of fish at the spawning site. Response behavior toward egg cannibalism was also examined among females and dominant males in order to determine any parental investment toward protecting the eggs after spawning. Cannibalistic behavior was seen in almost 50% of the spawnings, and the multiple spawning events showed the highest numbers of fish cannibalizing on eggs. Both the number of males releasing milt and the number of fish approaching the spawning site were positively correlated with egg cannibalism. Sperm competition was, however, not a prerequisite for egg cannibalism. Although we also observed partial filial cannibalism, protective behavior of eggs was seen both among dominant males and females, suggesting that charr actually conduct parental care. publishedVersion Article in Journal/Newspaper Arctic Arctic charr Salvelinus alpinus Nord Open Research Archive Ecology and Evolution 11 21 14383 14391 |
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English |
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VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 |
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VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 Frye, Marilena Egeland, Torvald Blikra Nordeide, Jarle Tryti Folstad, Ivar Cannibalism and protective behavior of eggs in Arctic charr (Salvelinus alpinus) |
topic_facet |
VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920 |
description |
From video recordings of spawning events, we quantified protective and cannibalistic behavior of Arctic charr occurring immediately after spawning. The number of fish cannibalizing on stray eggs was examined regarding (a) whether more than one male shed milt during the spawning event, that is, whether sperm competition occurred, (b) whether the sperm competition included few or many males, that is, the intensity of sperm competition, and (c) the density of fish at the spawning site. Response behavior toward egg cannibalism was also examined among females and dominant males in order to determine any parental investment toward protecting the eggs after spawning. Cannibalistic behavior was seen in almost 50% of the spawnings, and the multiple spawning events showed the highest numbers of fish cannibalizing on eggs. Both the number of males releasing milt and the number of fish approaching the spawning site were positively correlated with egg cannibalism. Sperm competition was, however, not a prerequisite for egg cannibalism. Although we also observed partial filial cannibalism, protective behavior of eggs was seen both among dominant males and females, suggesting that charr actually conduct parental care. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Frye, Marilena Egeland, Torvald Blikra Nordeide, Jarle Tryti Folstad, Ivar |
author_facet |
Frye, Marilena Egeland, Torvald Blikra Nordeide, Jarle Tryti Folstad, Ivar |
author_sort |
Frye, Marilena |
title |
Cannibalism and protective behavior of eggs in Arctic charr (Salvelinus alpinus) |
title_short |
Cannibalism and protective behavior of eggs in Arctic charr (Salvelinus alpinus) |
title_full |
Cannibalism and protective behavior of eggs in Arctic charr (Salvelinus alpinus) |
title_fullStr |
Cannibalism and protective behavior of eggs in Arctic charr (Salvelinus alpinus) |
title_full_unstemmed |
Cannibalism and protective behavior of eggs in Arctic charr (Salvelinus alpinus) |
title_sort |
cannibalism and protective behavior of eggs in arctic charr (salvelinus alpinus) |
publisher |
Wiley |
publishDate |
2021 |
url |
https://hdl.handle.net/11250/2829790 https://doi.org/10.1002/ece3.8173 |
genre |
Arctic Arctic charr Salvelinus alpinus |
genre_facet |
Arctic Arctic charr Salvelinus alpinus |
op_source |
14383– 14391 11 Ecology and Evolution |
op_relation |
Frye, M., Egeland, T. B., Nordeide, J. T. & Folstad, I. (2021). Cannibalism and protective behavior of eggs in Arctic charr (Salvelinus alpinus). Ecology and Evolution, 11, 14383– 14391. doi: urn:issn:2045-7758 https://hdl.handle.net/11250/2829790 https://doi.org/10.1002/ece3.8173 cristin:1939806 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2021 The Author(s) |
op_doi |
https://doi.org/10.1002/ece3.8173 |
container_title |
Ecology and Evolution |
container_volume |
11 |
container_issue |
21 |
container_start_page |
14383 |
op_container_end_page |
14391 |
_version_ |
1810292544164069376 |