Why do marine endotherms eat gelatinous prey?
Abstract There is growing evidence that gelatinous zooplanktonic organisms (“gelata”) are regular prey for marine endotherms. Yet the consumption of gelata is intriguing in terms of the energy reward, because endotherms have a high energy demand and the consumption of gelata provides little energy r...
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Oxford University Press (OUP)
2019
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsz208 http://academic.oup.com/icesjms/advance-article-pdf/doi/10.1093/icesjms/fsz208/30438110/fsz208.pdf |
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croxfordunivpr:10.1093/icesjms/fsz208 2023-10-01T03:51:45+02:00 Why do marine endotherms eat gelatinous prey? Thiebot, Jean-Baptiste McInnes, Julie C Browman, Howard 2019 http://dx.doi.org/10.1093/icesjms/fsz208 http://academic.oup.com/icesjms/advance-article-pdf/doi/10.1093/icesjms/fsz208/30438110/fsz208.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 ISSN 1054-3139 1095-9289 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2019 croxfordunivpr https://doi.org/10.1093/icesjms/fsz208 2023-09-01T10:58:36Z Abstract There is growing evidence that gelatinous zooplanktonic organisms (“gelata”) are regular prey for marine endotherms. Yet the consumption of gelata is intriguing in terms of the energy reward, because endotherms have a high energy demand and the consumption of gelata provides little energy return. In this paper, we take advantage of recent advances in diet analysis methods, notably animal-borne video loggers and DNA analysis in seabirds, to examine our current understanding of this interaction. We suggest that several hypotheses commonly raised to explain predation on gelata (including increased biomass, reduced prey availability, and secondary ingestion) have already been tested and many lack strong support. We emphasize that gelata are widely consumed by endotherms (121 cases reported across 82 species of seabirds, marine mammals, and endothermic fishes) from the Arctic to the Antarctic but noticeably less in the tropics. We propose that in line with research from terrestrial ecosystems atypical food items might be beneficial to the consumers in a non-energetic context, encompassing self-medication, and responding to homeostatic challenges. Changing the “last resort” context for a “functional response” framework may improve our understanding of widespread predation on gelata. Further biochemical analyses are needed to formally examine this perspective. Article in Journal/Newspaper Antarc* Antarctic Arctic Oxford University Press (via Crossref) Arctic Antarctic The Antarctic ICES Journal of Marine Science |
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Open Polar |
collection |
Oxford University Press (via Crossref) |
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croxfordunivpr |
language |
English |
topic |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
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Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography Thiebot, Jean-Baptiste McInnes, Julie C Why do marine endotherms eat gelatinous prey? |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract There is growing evidence that gelatinous zooplanktonic organisms (“gelata”) are regular prey for marine endotherms. Yet the consumption of gelata is intriguing in terms of the energy reward, because endotherms have a high energy demand and the consumption of gelata provides little energy return. In this paper, we take advantage of recent advances in diet analysis methods, notably animal-borne video loggers and DNA analysis in seabirds, to examine our current understanding of this interaction. We suggest that several hypotheses commonly raised to explain predation on gelata (including increased biomass, reduced prey availability, and secondary ingestion) have already been tested and many lack strong support. We emphasize that gelata are widely consumed by endotherms (121 cases reported across 82 species of seabirds, marine mammals, and endothermic fishes) from the Arctic to the Antarctic but noticeably less in the tropics. We propose that in line with research from terrestrial ecosystems atypical food items might be beneficial to the consumers in a non-energetic context, encompassing self-medication, and responding to homeostatic challenges. Changing the “last resort” context for a “functional response” framework may improve our understanding of widespread predation on gelata. Further biochemical analyses are needed to formally examine this perspective. |
author2 |
Browman, Howard |
format |
Article in Journal/Newspaper |
author |
Thiebot, Jean-Baptiste McInnes, Julie C |
author_facet |
Thiebot, Jean-Baptiste McInnes, Julie C |
author_sort |
Thiebot, Jean-Baptiste |
title |
Why do marine endotherms eat gelatinous prey? |
title_short |
Why do marine endotherms eat gelatinous prey? |
title_full |
Why do marine endotherms eat gelatinous prey? |
title_fullStr |
Why do marine endotherms eat gelatinous prey? |
title_full_unstemmed |
Why do marine endotherms eat gelatinous prey? |
title_sort |
why do marine endotherms eat gelatinous prey? |
publisher |
Oxford University Press (OUP) |
publishDate |
2019 |
url |
http://dx.doi.org/10.1093/icesjms/fsz208 http://academic.oup.com/icesjms/advance-article-pdf/doi/10.1093/icesjms/fsz208/30438110/fsz208.pdf |
geographic |
Arctic Antarctic The Antarctic |
geographic_facet |
Arctic Antarctic The Antarctic |
genre |
Antarc* Antarctic Arctic |
genre_facet |
Antarc* Antarctic Arctic |
op_source |
ICES Journal of Marine Science 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/fsz208 |
container_title |
ICES Journal of Marine Science |
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1778516996252499968 |