New insight into trophic niche partitioning and diet of mackerel ( Scomber scombrus) and herring ( Clupea harengus) in Icelandic waters
Abstract Understanding the competitive interactions of ecological similar species is essential to determine their role and niche in the ecosystem. Using both conventional dietary methods and stable isotope analysis, we examined the feeding ecology, trophic position and possible niche partitioning of...
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Oxford University Press (OUP)
2021
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsaa100 http://academic.oup.com/icesjms/article-pdf/78/4/1485/39829663/fsaa100.pdf |
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croxfordunivpr:10.1093/icesjms/fsaa100 2024-09-15T18:25:24+00:00 New insight into trophic niche partitioning and diet of mackerel ( Scomber scombrus) and herring ( Clupea harengus) in Icelandic waters Kvaavik, Cecilia Óskarsson, Gudmundur J Pétursdóttir, Hildur Marteinsdóttir, Gudrun Daníelsdóttir, Anna Kristín Dolgov, Andrey Icelandic Centre for Research Marine and Freshwater Research Institute (MFRI), Matís ohf, and the University of Iceland 2021 http://dx.doi.org/10.1093/icesjms/fsaa100 http://academic.oup.com/icesjms/article-pdf/78/4/1485/39829663/fsaa100.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model ICES Journal of Marine Science volume 78, issue 4, page 1485-1499 ISSN 1054-3139 1095-9289 journal-article 2021 croxfordunivpr https://doi.org/10.1093/icesjms/fsaa100 2024-07-29T04:22:20Z Abstract Understanding the competitive interactions of ecological similar species is essential to determine their role and niche in the ecosystem. Using both conventional dietary methods and stable isotope analysis, we examined the feeding ecology, trophic position and possible niche partitioning of Northeast Atlantic mackerel (Scomber scombrus), Icelandic summer spawning (ISS) herring (Clupea harengus), and Norwegian spring spawning (NSS) herring from Icelandic waters during the spring and summer 2012 and 2014. The stomach analysis showed differences in prey preferences among the species during summer, where mackerel diets were almost exclusively calanoid copepods, while herring ate larger zooplankton, i.e. euphausiids and amphipods. Analysis of isotopic diet contribution of mackerel and herring using Bayesian mixing models, representing mainly the spring consumption, revealed that euphausiids were the main dietary contributor of both mackerel and herring. Fish prey were also an important dietary source for ISS herring, and amphipods were important to the diet of NSS herring. In addition, mackerel encompassed a broad isotopic niche, whereas the two herring stocks had narrower and separated niches from each other. The results from this analysis reveal new and holistic information into the diet of these species, which have various ecological implications. Article in Journal/Newspaper Northeast Atlantic Copepods Oxford University Press ICES Journal of Marine Science |
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Oxford University Press |
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croxfordunivpr |
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English |
description |
Abstract Understanding the competitive interactions of ecological similar species is essential to determine their role and niche in the ecosystem. Using both conventional dietary methods and stable isotope analysis, we examined the feeding ecology, trophic position and possible niche partitioning of Northeast Atlantic mackerel (Scomber scombrus), Icelandic summer spawning (ISS) herring (Clupea harengus), and Norwegian spring spawning (NSS) herring from Icelandic waters during the spring and summer 2012 and 2014. The stomach analysis showed differences in prey preferences among the species during summer, where mackerel diets were almost exclusively calanoid copepods, while herring ate larger zooplankton, i.e. euphausiids and amphipods. Analysis of isotopic diet contribution of mackerel and herring using Bayesian mixing models, representing mainly the spring consumption, revealed that euphausiids were the main dietary contributor of both mackerel and herring. Fish prey were also an important dietary source for ISS herring, and amphipods were important to the diet of NSS herring. In addition, mackerel encompassed a broad isotopic niche, whereas the two herring stocks had narrower and separated niches from each other. The results from this analysis reveal new and holistic information into the diet of these species, which have various ecological implications. |
author2 |
Dolgov, Andrey Icelandic Centre for Research Marine and Freshwater Research Institute (MFRI), Matís ohf, and the University of Iceland |
format |
Article in Journal/Newspaper |
author |
Kvaavik, Cecilia Óskarsson, Gudmundur J Pétursdóttir, Hildur Marteinsdóttir, Gudrun Daníelsdóttir, Anna Kristín |
spellingShingle |
Kvaavik, Cecilia Óskarsson, Gudmundur J Pétursdóttir, Hildur Marteinsdóttir, Gudrun Daníelsdóttir, Anna Kristín New insight into trophic niche partitioning and diet of mackerel ( Scomber scombrus) and herring ( Clupea harengus) in Icelandic waters |
author_facet |
Kvaavik, Cecilia Óskarsson, Gudmundur J Pétursdóttir, Hildur Marteinsdóttir, Gudrun Daníelsdóttir, Anna Kristín |
author_sort |
Kvaavik, Cecilia |
title |
New insight into trophic niche partitioning and diet of mackerel ( Scomber scombrus) and herring ( Clupea harengus) in Icelandic waters |
title_short |
New insight into trophic niche partitioning and diet of mackerel ( Scomber scombrus) and herring ( Clupea harengus) in Icelandic waters |
title_full |
New insight into trophic niche partitioning and diet of mackerel ( Scomber scombrus) and herring ( Clupea harengus) in Icelandic waters |
title_fullStr |
New insight into trophic niche partitioning and diet of mackerel ( Scomber scombrus) and herring ( Clupea harengus) in Icelandic waters |
title_full_unstemmed |
New insight into trophic niche partitioning and diet of mackerel ( Scomber scombrus) and herring ( Clupea harengus) in Icelandic waters |
title_sort |
new insight into trophic niche partitioning and diet of mackerel ( scomber scombrus) and herring ( clupea harengus) in icelandic waters |
publisher |
Oxford University Press (OUP) |
publishDate |
2021 |
url |
http://dx.doi.org/10.1093/icesjms/fsaa100 http://academic.oup.com/icesjms/article-pdf/78/4/1485/39829663/fsaa100.pdf |
genre |
Northeast Atlantic Copepods |
genre_facet |
Northeast Atlantic Copepods |
op_source |
ICES Journal of Marine Science volume 78, issue 4, page 1485-1499 ISSN 1054-3139 1095-9289 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
op_doi |
https://doi.org/10.1093/icesjms/fsaa100 |
container_title |
ICES Journal of Marine Science |
_version_ |
1810465914020167680 |