Feeding Ecology of Northeast Atlantic Mackerel, Norwegian Spring-Spawning Herring and Blue Whiting in the Norwegian Sea.
The Norwegian spring-spawning (NSS) herring (Clupea harengus), blue whiting (Micromesistius poutassou) and Northeast Atlantic (NEA) mackerel (Scomber scombrus) are extremely abundant pelagic planktivores that feed in the Norwegian Sea (NS) during spring and summer. This study investigated the feedin...
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ftdoajarticles:oai:doaj.org/article:1238b6c8cb954aeca0c30d7df5f1210d 2023-05-15T15:48:03+02:00 Feeding Ecology of Northeast Atlantic Mackerel, Norwegian Spring-Spawning Herring and Blue Whiting in the Norwegian Sea. Eneko Bachiller Georg Skaret Leif Nøttestad Aril Slotte 2016-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0149238 https://doaj.org/article/1238b6c8cb954aeca0c30d7df5f1210d EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC4764516?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0149238 https://doaj.org/article/1238b6c8cb954aeca0c30d7df5f1210d PLoS ONE, Vol 11, Iss 2, p e0149238 (2016) Medicine R Science Q article 2016 ftdoajarticles https://doi.org/10.1371/journal.pone.0149238 2022-12-31T00:46:30Z The Norwegian spring-spawning (NSS) herring (Clupea harengus), blue whiting (Micromesistius poutassou) and Northeast Atlantic (NEA) mackerel (Scomber scombrus) are extremely abundant pelagic planktivores that feed in the Norwegian Sea (NS) during spring and summer. This study investigated the feeding ecology and diet composition of these commercially important fish stocks on the basis of biological data, including an extensive set of stomach samples in combination with hydrographical data, zooplankton samples and acoustic abundance data from 12 stock monitoring surveys carried out in 2005-2010. Mackerel were absent during the spring, but had generally high feeding overlap with herring in the summer, with a diet mainly based on calanoid copepods, especially Calanus finmarchicus, as well as a similar diet width. Stomach fullness in herring diminished from spring to summer and feeding incidence was lower than that of mackerel in summer. However, stomach fullness did not differ between the two species, indicating that herring maintain an equally efficient pattern of feeding as mackerel in summer, but on a diet that is less dominated by copepods and is more reliant on larger prey. Blue whiting tended to have a low dietary overlap with mackerel and herring, with larger prey such as euphausiids and amphipods dominating, and stomach fullness and feeding incidence increasing with length. For all the species, feeding incidence increased with decreasing temperature, and for mackerel so did stomach fullness, indicating that feeding activity is highest in areas associated with colder water masses. Significant annual effects on diet composition and feeding-related variables suggested that the three species are able to adapt to different food and environmental conditions. These annual effects are likely to have an important impact on the predation pressure on different plankton groups and the carrying capacity of individual systems, and emphasise the importance of regular monitoring of pelagic fish diets. Article in Journal/Newspaper Calanus finmarchicus Northeast Atlantic Norwegian Sea Copepods Directory of Open Access Journals: DOAJ Articles Norwegian Sea PLOS ONE 11 2 e0149238 |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Eneko Bachiller Georg Skaret Leif Nøttestad Aril Slotte Feeding Ecology of Northeast Atlantic Mackerel, Norwegian Spring-Spawning Herring and Blue Whiting in the Norwegian Sea. |
topic_facet |
Medicine R Science Q |
description |
The Norwegian spring-spawning (NSS) herring (Clupea harengus), blue whiting (Micromesistius poutassou) and Northeast Atlantic (NEA) mackerel (Scomber scombrus) are extremely abundant pelagic planktivores that feed in the Norwegian Sea (NS) during spring and summer. This study investigated the feeding ecology and diet composition of these commercially important fish stocks on the basis of biological data, including an extensive set of stomach samples in combination with hydrographical data, zooplankton samples and acoustic abundance data from 12 stock monitoring surveys carried out in 2005-2010. Mackerel were absent during the spring, but had generally high feeding overlap with herring in the summer, with a diet mainly based on calanoid copepods, especially Calanus finmarchicus, as well as a similar diet width. Stomach fullness in herring diminished from spring to summer and feeding incidence was lower than that of mackerel in summer. However, stomach fullness did not differ between the two species, indicating that herring maintain an equally efficient pattern of feeding as mackerel in summer, but on a diet that is less dominated by copepods and is more reliant on larger prey. Blue whiting tended to have a low dietary overlap with mackerel and herring, with larger prey such as euphausiids and amphipods dominating, and stomach fullness and feeding incidence increasing with length. For all the species, feeding incidence increased with decreasing temperature, and for mackerel so did stomach fullness, indicating that feeding activity is highest in areas associated with colder water masses. Significant annual effects on diet composition and feeding-related variables suggested that the three species are able to adapt to different food and environmental conditions. These annual effects are likely to have an important impact on the predation pressure on different plankton groups and the carrying capacity of individual systems, and emphasise the importance of regular monitoring of pelagic fish diets. |
format |
Article in Journal/Newspaper |
author |
Eneko Bachiller Georg Skaret Leif Nøttestad Aril Slotte |
author_facet |
Eneko Bachiller Georg Skaret Leif Nøttestad Aril Slotte |
author_sort |
Eneko Bachiller |
title |
Feeding Ecology of Northeast Atlantic Mackerel, Norwegian Spring-Spawning Herring and Blue Whiting in the Norwegian Sea. |
title_short |
Feeding Ecology of Northeast Atlantic Mackerel, Norwegian Spring-Spawning Herring and Blue Whiting in the Norwegian Sea. |
title_full |
Feeding Ecology of Northeast Atlantic Mackerel, Norwegian Spring-Spawning Herring and Blue Whiting in the Norwegian Sea. |
title_fullStr |
Feeding Ecology of Northeast Atlantic Mackerel, Norwegian Spring-Spawning Herring and Blue Whiting in the Norwegian Sea. |
title_full_unstemmed |
Feeding Ecology of Northeast Atlantic Mackerel, Norwegian Spring-Spawning Herring and Blue Whiting in the Norwegian Sea. |
title_sort |
feeding ecology of northeast atlantic mackerel, norwegian spring-spawning herring and blue whiting in the norwegian sea. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2016 |
url |
https://doi.org/10.1371/journal.pone.0149238 https://doaj.org/article/1238b6c8cb954aeca0c30d7df5f1210d |
geographic |
Norwegian Sea |
geographic_facet |
Norwegian Sea |
genre |
Calanus finmarchicus Northeast Atlantic Norwegian Sea Copepods |
genre_facet |
Calanus finmarchicus Northeast Atlantic Norwegian Sea Copepods |
op_source |
PLoS ONE, Vol 11, Iss 2, p e0149238 (2016) |
op_relation |
http://europepmc.org/articles/PMC4764516?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0149238 https://doaj.org/article/1238b6c8cb954aeca0c30d7df5f1210d |
op_doi |
https://doi.org/10.1371/journal.pone.0149238 |
container_title |
PLOS ONE |
container_volume |
11 |
container_issue |
2 |
container_start_page |
e0149238 |
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1766383059322535936 |