Cannibalism and protective behavior of eggs in Arctic charr ( Salvelinus alpinus )
Abstract 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...
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crwiley:10.1002/ece3.8173 2024-04-14T08:05:46+00:00 Cannibalism and protective behavior of eggs in Arctic charr ( Salvelinus alpinus ) Frye, Marilena Egeland, Torvald B. Nordeide, Jarle Tryti Folstad, Ivar 2021 http://dx.doi.org/10.1002/ece3.8173 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.8173 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ece3.8173 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Ecology and Evolution volume 11, issue 21, page 14383-14391 ISSN 2045-7758 2045-7758 Nature and Landscape Conservation Ecology Ecology, Evolution, Behavior and Systematics journal-article 2021 crwiley https://doi.org/10.1002/ece3.8173 2024-03-19T10:51:59Z Abstract 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. Article in Journal/Newspaper Arctic charr Arctic Salvelinus alpinus Wiley Online Library Arctic Ecology and Evolution 11 21 14383 14391 |
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Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
topic |
Nature and Landscape Conservation Ecology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Nature and Landscape Conservation Ecology Ecology, Evolution, Behavior and Systematics Frye, Marilena Egeland, Torvald B. Nordeide, Jarle Tryti Folstad, Ivar Cannibalism and protective behavior of eggs in Arctic charr ( Salvelinus alpinus ) |
topic_facet |
Nature and Landscape Conservation Ecology Ecology, Evolution, Behavior and Systematics |
description |
Abstract 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. |
format |
Article in Journal/Newspaper |
author |
Frye, Marilena Egeland, Torvald B. Nordeide, Jarle Tryti Folstad, Ivar |
author_facet |
Frye, Marilena Egeland, Torvald B. 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 |
http://dx.doi.org/10.1002/ece3.8173 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.8173 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ece3.8173 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic charr Arctic Salvelinus alpinus |
genre_facet |
Arctic charr Arctic Salvelinus alpinus |
op_source |
Ecology and Evolution volume 11, issue 21, page 14383-14391 ISSN 2045-7758 2045-7758 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
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_ |
1796302390141386752 |