Non-lethal effects of the predator Meganyctiphanes norvegica and influence of seasonal photoperiod and food availability on the diel feeding behaviour of the copepod Centropages typicus
Predators can induce changes in the diel activity patterns of marine copepods. Besides vertical migration, diel feeding rhythms have been suggested as an antipredator phenotypic response. We conducted experiments to assess the non-lethal direct effects of the predator Meganyctiphanes norvegica (nort...
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ftubarcepubl:oai:diposit.ub.edu:2445/174500 2024-02-11T10:05:44+01:00 Non-lethal effects of the predator Meganyctiphanes norvegica and influence of seasonal photoperiod and food availability on the diel feeding behaviour of the copepod Centropages typicus Olivares Requena, Manuel Tiselius, Peter Calbet, Albert Saiz, Enric 2020-11-03 10 p. application/pdf http://hdl.handle.net/2445/174500 eng eng Oxford University Press Reproducció del document publicat a: https://doi.org/10.1093/plankt/fbaa051 Journal of Plankton Research, 2020, vol. 42, num. 6, p. 742-751 Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) https://doi.org/10.1093/plankt/fbaa051 info:eu-repo/grantAgreement/EC/H2020/730984/EU//ASSEMBLE Plus 0142-7873 http://hdl.handle.net/2445/174500 704046 33239966 (c) cc-by Olivares Requena, Manuel et al., 2020 http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/openAccess Copèpodes Krill Fotoperiodicitat Zooplàncton Copepoda Photoperiodism Zooplankton info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion info:eu-repo/semantics/publishedVersion 2020 ftubarcepubl https://doi.org/10.1093/plankt/fbaa051 2024-01-24T01:14:18Z Predators can induce changes in the diel activity patterns of marine copepods. Besides vertical migration, diel feeding rhythms have been suggested as an antipredator phenotypic response. We conducted experiments to assess the non-lethal direct effects of the predator Meganyctiphanes norvegica (northern krill) on the diel feeding patterns of the calanoid copepod Centropages typicus. We also analysed the influence of seasonal photoperiod and prey availability on the intensity of copepod feeding rhythms. We did not detect any large effect of krill presence on the diel feeding behaviour of copepods, either in day-night differences or total daily ingestions. Seasonal photoperiod and prey availability, however, significantly affected the magnitude of copepod feeding cycles, with larger diel differences in shorter days and at lower prey concentrations. Therefore, the role of non-lethal direct effects of predators on the diel feeding activity of marine copepods remain debatable and might not be as relevant as in freshwater zooplankton. Article in Journal/Newspaper Meganyctiphanes norvegica Northern krill Copepods Dipòsit Digital de la Universitat de Barcelona Journal of Plankton Research |
institution |
Open Polar |
collection |
Dipòsit Digital de la Universitat de Barcelona |
op_collection_id |
ftubarcepubl |
language |
English |
topic |
Copèpodes Krill Fotoperiodicitat Zooplàncton Copepoda Photoperiodism Zooplankton |
spellingShingle |
Copèpodes Krill Fotoperiodicitat Zooplàncton Copepoda Photoperiodism Zooplankton Olivares Requena, Manuel Tiselius, Peter Calbet, Albert Saiz, Enric Non-lethal effects of the predator Meganyctiphanes norvegica and influence of seasonal photoperiod and food availability on the diel feeding behaviour of the copepod Centropages typicus |
topic_facet |
Copèpodes Krill Fotoperiodicitat Zooplàncton Copepoda Photoperiodism Zooplankton |
description |
Predators can induce changes in the diel activity patterns of marine copepods. Besides vertical migration, diel feeding rhythms have been suggested as an antipredator phenotypic response. We conducted experiments to assess the non-lethal direct effects of the predator Meganyctiphanes norvegica (northern krill) on the diel feeding patterns of the calanoid copepod Centropages typicus. We also analysed the influence of seasonal photoperiod and prey availability on the intensity of copepod feeding rhythms. We did not detect any large effect of krill presence on the diel feeding behaviour of copepods, either in day-night differences or total daily ingestions. Seasonal photoperiod and prey availability, however, significantly affected the magnitude of copepod feeding cycles, with larger diel differences in shorter days and at lower prey concentrations. Therefore, the role of non-lethal direct effects of predators on the diel feeding activity of marine copepods remain debatable and might not be as relevant as in freshwater zooplankton. |
format |
Article in Journal/Newspaper |
author |
Olivares Requena, Manuel Tiselius, Peter Calbet, Albert Saiz, Enric |
author_facet |
Olivares Requena, Manuel Tiselius, Peter Calbet, Albert Saiz, Enric |
author_sort |
Olivares Requena, Manuel |
title |
Non-lethal effects of the predator Meganyctiphanes norvegica and influence of seasonal photoperiod and food availability on the diel feeding behaviour of the copepod Centropages typicus |
title_short |
Non-lethal effects of the predator Meganyctiphanes norvegica and influence of seasonal photoperiod and food availability on the diel feeding behaviour of the copepod Centropages typicus |
title_full |
Non-lethal effects of the predator Meganyctiphanes norvegica and influence of seasonal photoperiod and food availability on the diel feeding behaviour of the copepod Centropages typicus |
title_fullStr |
Non-lethal effects of the predator Meganyctiphanes norvegica and influence of seasonal photoperiod and food availability on the diel feeding behaviour of the copepod Centropages typicus |
title_full_unstemmed |
Non-lethal effects of the predator Meganyctiphanes norvegica and influence of seasonal photoperiod and food availability on the diel feeding behaviour of the copepod Centropages typicus |
title_sort |
non-lethal effects of the predator meganyctiphanes norvegica and influence of seasonal photoperiod and food availability on the diel feeding behaviour of the copepod centropages typicus |
publisher |
Oxford University Press |
publishDate |
2020 |
url |
http://hdl.handle.net/2445/174500 |
genre |
Meganyctiphanes norvegica Northern krill Copepods |
genre_facet |
Meganyctiphanes norvegica Northern krill Copepods |
op_relation |
Reproducció del document publicat a: https://doi.org/10.1093/plankt/fbaa051 Journal of Plankton Research, 2020, vol. 42, num. 6, p. 742-751 Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) https://doi.org/10.1093/plankt/fbaa051 info:eu-repo/grantAgreement/EC/H2020/730984/EU//ASSEMBLE Plus 0142-7873 http://hdl.handle.net/2445/174500 704046 33239966 |
op_rights |
(c) cc-by Olivares Requena, Manuel et al., 2020 http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1093/plankt/fbaa051 |
container_title |
Journal of Plankton Research |
_version_ |
1790602893193117696 |