Diet and feeding strategy of Northeast Atlantic mackerel (Scombrus scomber) in Icelandic waters.
Predator-prey relations, as well as the trophic ecology of highly migratory marine species, is important to understand their impact on the ecosystem. Conventional methods were used to study the diet composition and feeding strategy of the Northeast Atlantic mackerel (Scombrus scomber), during their...
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ftdoajarticles:oai:doaj.org/article:f9528d2f82a64fd9944773f355500287 2023-05-15T15:48:00+02:00 Diet and feeding strategy of Northeast Atlantic mackerel (Scombrus scomber) in Icelandic waters. Cecilia Kvaavik Gudmundur J Óskarsson Anna Kristín Daníelsdóttir Gudrún Marteinsdóttir 2019-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0225552 https://doaj.org/article/f9528d2f82a64fd9944773f355500287 EN eng Public Library of Science (PLoS) https://doi.org/10.1371/journal.pone.0225552 https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0225552 https://doaj.org/article/f9528d2f82a64fd9944773f355500287 PLoS ONE, Vol 14, Iss 12, p e0225552 (2019) Medicine R Science Q article 2019 ftdoajarticles https://doi.org/10.1371/journal.pone.0225552 2022-12-31T05:57:29Z Predator-prey relations, as well as the trophic ecology of highly migratory marine species, is important to understand their impact on the ecosystem. Conventional methods were used to study the diet composition and feeding strategy of the Northeast Atlantic mackerel (Scombrus scomber), during their summer feeding migration to Icelandic waters in 2009-2014. In addition, generalised additive modelling (GAM) was used to determine which biological and environmental factors contribute to the variation of their stomach weight in the years 2011-2014. From the dietary analysis, we found that calanoid copepods (especially Calanus finmarchicus) were the most important contributor to the overall diet of mackerel in the years studied. Although in some years and areas, they also preyed heavily on larger prey items such as euphausiids, amphipods and megalopa larvae of crab and shrimp. The GAM showed that temperature and the time the day of sampling were significant explanatory variables for the stomach weight, while zooplankton biomass did not seem to have much influence. The Northeast Atlantic mackerel are ferocious feeders upon copepods, as well as exhibiting an overall opportunistic feeding strategy. During their feeding migration in Icelandic waters, they were found to feed on the most dominant species available to them. Article in Journal/Newspaper Calanus finmarchicus Northeast Atlantic Copepods Directory of Open Access Journals: DOAJ Articles Gam ENVELOPE(-57.955,-57.955,-61.923,-61.923) PLOS ONE 14 12 e0225552 |
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English |
topic |
Medicine R Science Q |
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Medicine R Science Q Cecilia Kvaavik Gudmundur J Óskarsson Anna Kristín Daníelsdóttir Gudrún Marteinsdóttir Diet and feeding strategy of Northeast Atlantic mackerel (Scombrus scomber) in Icelandic waters. |
topic_facet |
Medicine R Science Q |
description |
Predator-prey relations, as well as the trophic ecology of highly migratory marine species, is important to understand their impact on the ecosystem. Conventional methods were used to study the diet composition and feeding strategy of the Northeast Atlantic mackerel (Scombrus scomber), during their summer feeding migration to Icelandic waters in 2009-2014. In addition, generalised additive modelling (GAM) was used to determine which biological and environmental factors contribute to the variation of their stomach weight in the years 2011-2014. From the dietary analysis, we found that calanoid copepods (especially Calanus finmarchicus) were the most important contributor to the overall diet of mackerel in the years studied. Although in some years and areas, they also preyed heavily on larger prey items such as euphausiids, amphipods and megalopa larvae of crab and shrimp. The GAM showed that temperature and the time the day of sampling were significant explanatory variables for the stomach weight, while zooplankton biomass did not seem to have much influence. The Northeast Atlantic mackerel are ferocious feeders upon copepods, as well as exhibiting an overall opportunistic feeding strategy. During their feeding migration in Icelandic waters, they were found to feed on the most dominant species available to them. |
format |
Article in Journal/Newspaper |
author |
Cecilia Kvaavik Gudmundur J Óskarsson Anna Kristín Daníelsdóttir Gudrún Marteinsdóttir |
author_facet |
Cecilia Kvaavik Gudmundur J Óskarsson Anna Kristín Daníelsdóttir Gudrún Marteinsdóttir |
author_sort |
Cecilia Kvaavik |
title |
Diet and feeding strategy of Northeast Atlantic mackerel (Scombrus scomber) in Icelandic waters. |
title_short |
Diet and feeding strategy of Northeast Atlantic mackerel (Scombrus scomber) in Icelandic waters. |
title_full |
Diet and feeding strategy of Northeast Atlantic mackerel (Scombrus scomber) in Icelandic waters. |
title_fullStr |
Diet and feeding strategy of Northeast Atlantic mackerel (Scombrus scomber) in Icelandic waters. |
title_full_unstemmed |
Diet and feeding strategy of Northeast Atlantic mackerel (Scombrus scomber) in Icelandic waters. |
title_sort |
diet and feeding strategy of northeast atlantic mackerel (scombrus scomber) in icelandic waters. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2019 |
url |
https://doi.org/10.1371/journal.pone.0225552 https://doaj.org/article/f9528d2f82a64fd9944773f355500287 |
long_lat |
ENVELOPE(-57.955,-57.955,-61.923,-61.923) |
geographic |
Gam |
geographic_facet |
Gam |
genre |
Calanus finmarchicus Northeast Atlantic Copepods |
genre_facet |
Calanus finmarchicus Northeast Atlantic Copepods |
op_source |
PLoS ONE, Vol 14, Iss 12, p e0225552 (2019) |
op_relation |
https://doi.org/10.1371/journal.pone.0225552 https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0225552 https://doaj.org/article/f9528d2f82a64fd9944773f355500287 |
op_doi |
https://doi.org/10.1371/journal.pone.0225552 |
container_title |
PLOS ONE |
container_volume |
14 |
container_issue |
12 |
container_start_page |
e0225552 |
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