Data from: 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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Dryad
2017
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Online Access: | https://doi.org/10.5061/dryad.f5r7f |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::88c16c2a6a7cb62149a3c940128c7388 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
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op_collection_id |
fttriple |
language |
unknown |
topic |
Gastropoda cl Limacina spp Thysanoessa longicaudata Crustacea subph NEA mackerel Clausocalanus spp Oikopleura spp Actinopterygii cl Maurolicus muelleri Calanus finmarchicus Amphipoda ord Calanus glacialis Cladocera infraord Calanus hyperboreus Hyperiidae fam Gadus morhua Podon spp Calanus spp Thysanoessa spp Hydrozoa cl Chaetognatha ph Themisto abyssorum Euchaeta spp Caridea infraord Themisto spp Munida spp inter-annual variability Sebastes spp Metridia spp Ostracoda cl Limacina retroversa diet composition blue whiting Gonatus fabricii Meganyctiphanes norvegica Evadne spp Calanoida ord Decapoda ord Appendicularia cl diet overlap Thysanoessa inermis Metridia longa Myctophidae fam Melanogrammus aeglefinus NSS herring Euphausiacea ord Themisto libellula Cephalopoda cl Pandalus spp Copepoda subcl |
spellingShingle |
Gastropoda cl Limacina spp Thysanoessa longicaudata Crustacea subph NEA mackerel Clausocalanus spp Oikopleura spp Actinopterygii cl Maurolicus muelleri Calanus finmarchicus Amphipoda ord Calanus glacialis Cladocera infraord Calanus hyperboreus Hyperiidae fam Gadus morhua Podon spp Calanus spp Thysanoessa spp Hydrozoa cl Chaetognatha ph Themisto abyssorum Euchaeta spp Caridea infraord Themisto spp Munida spp inter-annual variability Sebastes spp Metridia spp Ostracoda cl Limacina retroversa diet composition blue whiting Gonatus fabricii Meganyctiphanes norvegica Evadne spp Calanoida ord Decapoda ord Appendicularia cl diet overlap Thysanoessa inermis Metridia longa Myctophidae fam Melanogrammus aeglefinus NSS herring Euphausiacea ord Themisto libellula Cephalopoda cl Pandalus spp Copepoda subcl Bachiller, Eneko Skaret, Georg Nøttestad, Leif Slotte, Aril Data from: Feeding ecology of Northeast Atlantic mackerel, Norwegian spring-spawning herring and blue whiting in the Norwegian Sea |
topic_facet |
Gastropoda cl Limacina spp Thysanoessa longicaudata Crustacea subph NEA mackerel Clausocalanus spp Oikopleura spp Actinopterygii cl Maurolicus muelleri Calanus finmarchicus Amphipoda ord Calanus glacialis Cladocera infraord Calanus hyperboreus Hyperiidae fam Gadus morhua Podon spp Calanus spp Thysanoessa spp Hydrozoa cl Chaetognatha ph Themisto abyssorum Euchaeta spp Caridea infraord Themisto spp Munida spp inter-annual variability Sebastes spp Metridia spp Ostracoda cl Limacina retroversa diet composition blue whiting Gonatus fabricii Meganyctiphanes norvegica Evadne spp Calanoida ord Decapoda ord Appendicularia cl diet overlap Thysanoessa inermis Metridia longa Myctophidae fam Melanogrammus aeglefinus NSS herring Euphausiacea ord Themisto libellula Cephalopoda cl Pandalus spp Copepoda subcl |
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. CTD and fish sampling ... |
format |
Dataset |
author |
Bachiller, Eneko Skaret, Georg Nøttestad, Leif Slotte, Aril |
author_facet |
Bachiller, Eneko Skaret, Georg Nøttestad, Leif Slotte, Aril |
author_sort |
Bachiller, Eneko |
title |
Data from: Feeding ecology of Northeast Atlantic mackerel, Norwegian spring-spawning herring and blue whiting in the Norwegian Sea |
title_short |
Data from: Feeding ecology of Northeast Atlantic mackerel, Norwegian spring-spawning herring and blue whiting in the Norwegian Sea |
title_full |
Data from: Feeding ecology of Northeast Atlantic mackerel, Norwegian spring-spawning herring and blue whiting in the Norwegian Sea |
title_fullStr |
Data from: Feeding ecology of Northeast Atlantic mackerel, Norwegian spring-spawning herring and blue whiting in the Norwegian Sea |
title_full_unstemmed |
Data from: Feeding ecology of Northeast Atlantic mackerel, Norwegian spring-spawning herring and blue whiting in the Norwegian Sea |
title_sort |
data from: feeding ecology of northeast atlantic mackerel, norwegian spring-spawning herring and blue whiting in the norwegian sea |
publisher |
Dryad |
publishDate |
2017 |
url |
https://doi.org/10.5061/dryad.f5r7f |
geographic |
Norwegian Sea |
geographic_facet |
Norwegian Sea |
genre |
Calanus finmarchicus Calanus glacialis Calanus hyperboreus Gadus morhua Meganyctiphanes norvegica Northeast Atlantic Norwegian Sea Themisto abyssorum Themisto libellula Copepods Thysanoessa inermis |
genre_facet |
Calanus finmarchicus Calanus glacialis Calanus hyperboreus Gadus morhua Meganyctiphanes norvegica Northeast Atlantic Norwegian Sea Themisto abyssorum Themisto libellula Copepods Thysanoessa inermis |
op_source |
10.5061/dryad.f5r7f oai:easy.dans.knaw.nl:easy-dataset:91563 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:91563 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c |
op_relation |
https://dx.doi.org/10.5061/dryad.f5r7f http://dx.doi.org/10.5061/dryad.f5r7f |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.f5r7f |
_version_ |
1766382989669826560 |
spelling |
fttriple:oai:gotriple.eu:50|dedup_wf_001::88c16c2a6a7cb62149a3c940128c7388 2023-05-15T15:48:00+02:00 Data from: Feeding ecology of Northeast Atlantic mackerel, Norwegian spring-spawning herring and blue whiting in the Norwegian Sea Bachiller, Eneko Skaret, Georg Nøttestad, Leif Slotte, Aril 2017-02-02 https://doi.org/10.5061/dryad.f5r7f undefined unknown Dryad https://dx.doi.org/10.5061/dryad.f5r7f http://dx.doi.org/10.5061/dryad.f5r7f lic_creative-commons 10.5061/dryad.f5r7f oai:easy.dans.knaw.nl:easy-dataset:91563 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:91563 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c Gastropoda cl Limacina spp Thysanoessa longicaudata Crustacea subph NEA mackerel Clausocalanus spp Oikopleura spp Actinopterygii cl Maurolicus muelleri Calanus finmarchicus Amphipoda ord Calanus glacialis Cladocera infraord Calanus hyperboreus Hyperiidae fam Gadus morhua Podon spp Calanus spp Thysanoessa spp Hydrozoa cl Chaetognatha ph Themisto abyssorum Euchaeta spp Caridea infraord Themisto spp Munida spp inter-annual variability Sebastes spp Metridia spp Ostracoda cl Limacina retroversa diet composition blue whiting Gonatus fabricii Meganyctiphanes norvegica Evadne spp Calanoida ord Decapoda ord Appendicularia cl diet overlap Thysanoessa inermis Metridia longa Myctophidae fam Melanogrammus aeglefinus NSS herring Euphausiacea ord Themisto libellula Cephalopoda cl Pandalus spp Copepoda subcl Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2017 fttriple https://doi.org/10.5061/dryad.f5r7f 2023-01-22T17:41:48Z 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. CTD and fish sampling ... Dataset Calanus finmarchicus Calanus glacialis Calanus hyperboreus Gadus morhua Meganyctiphanes norvegica Northeast Atlantic Norwegian Sea Themisto abyssorum Themisto libellula Copepods Thysanoessa inermis Unknown Norwegian Sea |