Trophic interactions of meso- and macrozooplankton and fish in the Iceland Sea as evaluated by fatty acid and stable isotope analysis
Abstract Petursdottir, H., Falk-Petersen, S., and Gislason, A. 2012. Trophic interactions of meso- and macrozooplankton and fish in the Iceland Sea as evaluated by fatty acid and stable isotope analysis. – ICES Journal of Marine Science, 69: . A trophic study was carried out in August of 2007 and 20...
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Online Access: | http://dx.doi.org/10.1093/icesjms/fss125 http://academic.oup.com/icesjms/article-pdf/69/7/1277/29146580/fss125.pdf |
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croxfordunivpr:10.1093/icesjms/fss125 2023-10-09T21:50:28+02:00 Trophic interactions of meso- and macrozooplankton and fish in the Iceland Sea as evaluated by fatty acid and stable isotope analysis Petursdottir, Hildur Falk-Petersen, Stig Gislason, Astthor 2012 http://dx.doi.org/10.1093/icesjms/fss125 http://academic.oup.com/icesjms/article-pdf/69/7/1277/29146580/fss125.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 69, issue 7, page 1277-1288 ISSN 1095-9289 1054-3139 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2012 croxfordunivpr https://doi.org/10.1093/icesjms/fss125 2023-09-22T11:16:18Z Abstract Petursdottir, H., Falk-Petersen, S., and Gislason, A. 2012. Trophic interactions of meso- and macrozooplankton and fish in the Iceland Sea as evaluated by fatty acid and stable isotope analysis. – ICES Journal of Marine Science, 69: . A trophic study was carried out in August of 2007 and 2008 on the pelagic ecosystem in the Subarctic Iceland Sea. Carbon and nitrogen stable isotopes and fatty acid biomarkers were used to study trophic linkages and the trophic ecology of the most important pelagic species in this ecosystem, with emphasis on capelin (Mallotus villosus). According to 15N enrichment results, there are 3–4 trophic levels in this ecosystem excluding organisms of the microbial loop and birds and mammals. The primarily herbivorous copepod Calanus hyperboreus occupies the lowest trophic level of the animal species studied, and adult capelin and blue whiting (Micromesistius poutassou) occupy the highest level. Calanus spp. proved to be an important dietary component of most of the species studied, the euphausiid species Thysanoessa inermis and T. longicaudata being exceptions. The chaetognath Eukrohnia hamata is a pure carnivore, feeding heavily on Calanus spp., whereas most of the other zooplankton species studied practice an omnivorous–carnivorous feeding mode. The amphipod species Themisto libellula is important in the diet of adult capelin. Adult capelin and blue whiting share the same feeding habits and could therefore be competing for food. Article in Journal/Newspaper Calanus hyperboreus Iceland Subarctic Themisto libellula Thysanoessa inermis Oxford University Press (via Crossref) Petersen ENVELOPE(-101.250,-101.250,-71.917,-71.917) ICES Journal of Marine Science 69 7 1277 1288 |
institution |
Open Polar |
collection |
Oxford University Press (via Crossref) |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography Petursdottir, Hildur Falk-Petersen, Stig Gislason, Astthor Trophic interactions of meso- and macrozooplankton and fish in the Iceland Sea as evaluated by fatty acid and stable isotope analysis |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Petursdottir, H., Falk-Petersen, S., and Gislason, A. 2012. Trophic interactions of meso- and macrozooplankton and fish in the Iceland Sea as evaluated by fatty acid and stable isotope analysis. – ICES Journal of Marine Science, 69: . A trophic study was carried out in August of 2007 and 2008 on the pelagic ecosystem in the Subarctic Iceland Sea. Carbon and nitrogen stable isotopes and fatty acid biomarkers were used to study trophic linkages and the trophic ecology of the most important pelagic species in this ecosystem, with emphasis on capelin (Mallotus villosus). According to 15N enrichment results, there are 3–4 trophic levels in this ecosystem excluding organisms of the microbial loop and birds and mammals. The primarily herbivorous copepod Calanus hyperboreus occupies the lowest trophic level of the animal species studied, and adult capelin and blue whiting (Micromesistius poutassou) occupy the highest level. Calanus spp. proved to be an important dietary component of most of the species studied, the euphausiid species Thysanoessa inermis and T. longicaudata being exceptions. The chaetognath Eukrohnia hamata is a pure carnivore, feeding heavily on Calanus spp., whereas most of the other zooplankton species studied practice an omnivorous–carnivorous feeding mode. The amphipod species Themisto libellula is important in the diet of adult capelin. Adult capelin and blue whiting share the same feeding habits and could therefore be competing for food. |
format |
Article in Journal/Newspaper |
author |
Petursdottir, Hildur Falk-Petersen, Stig Gislason, Astthor |
author_facet |
Petursdottir, Hildur Falk-Petersen, Stig Gislason, Astthor |
author_sort |
Petursdottir, Hildur |
title |
Trophic interactions of meso- and macrozooplankton and fish in the Iceland Sea as evaluated by fatty acid and stable isotope analysis |
title_short |
Trophic interactions of meso- and macrozooplankton and fish in the Iceland Sea as evaluated by fatty acid and stable isotope analysis |
title_full |
Trophic interactions of meso- and macrozooplankton and fish in the Iceland Sea as evaluated by fatty acid and stable isotope analysis |
title_fullStr |
Trophic interactions of meso- and macrozooplankton and fish in the Iceland Sea as evaluated by fatty acid and stable isotope analysis |
title_full_unstemmed |
Trophic interactions of meso- and macrozooplankton and fish in the Iceland Sea as evaluated by fatty acid and stable isotope analysis |
title_sort |
trophic interactions of meso- and macrozooplankton and fish in the iceland sea as evaluated by fatty acid and stable isotope analysis |
publisher |
Oxford University Press (OUP) |
publishDate |
2012 |
url |
http://dx.doi.org/10.1093/icesjms/fss125 http://academic.oup.com/icesjms/article-pdf/69/7/1277/29146580/fss125.pdf |
long_lat |
ENVELOPE(-101.250,-101.250,-71.917,-71.917) |
geographic |
Petersen |
geographic_facet |
Petersen |
genre |
Calanus hyperboreus Iceland Subarctic Themisto libellula Thysanoessa inermis |
genre_facet |
Calanus hyperboreus Iceland Subarctic Themisto libellula Thysanoessa inermis |
op_source |
ICES Journal of Marine Science volume 69, issue 7, page 1277-1288 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1093/icesjms/fss125 |
container_title |
ICES Journal of Marine Science |
container_volume |
69 |
container_issue |
7 |
container_start_page |
1277 |
op_container_end_page |
1288 |
_version_ |
1779313525884190720 |