Antarctic krill lipid and fatty acid content variability is associated to satellite derived chlorophyll a and sea surface temperatures
Antarctic krill ( Euphausia superba ) are a key component of the Antarctic food web with considerable lipid reserves that are vital for their health and higher predator survival. Krill lipids are primarily derived from their diet of plankton, in particular diatoms and flagellates. Few attempts have...
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ftunivtasecite:oai:ecite.utas.edu.au:141984 2023-05-15T13:59:46+02:00 Antarctic krill lipid and fatty acid content variability is associated to satellite derived chlorophyll a and sea surface temperatures Hellessey, N Johnson, R Ericson, JA Nichols, PD Kawaguchi, S Nicol, S Hoem, N Virtue, P 2020 application/pdf https://doi.org/10.1038/s41598-020-62800-7 http://www.ncbi.nlm.nih.gov/pubmed/32269236 http://ecite.utas.edu.au/141984 en eng Nature Publishing Group http://ecite.utas.edu.au/141984/1/141984 - Antarctic krill lipid and fatty acid content variability.pdf http://dx.doi.org/10.1038/s41598-020-62800-7 Hellessey, N and Johnson, R and Ericson, JA and Nichols, PD and Kawaguchi, S and Nicol, S and Hoem, N and Virtue, P, Antarctic krill lipid and fatty acid content variability is associated to satellite derived chlorophyll a and sea surface temperatures, Scientific Reports, 10, (1) Article 6060. ISSN 2045-2322 (2020) [Refereed Article] http://www.ncbi.nlm.nih.gov/pubmed/32269236 http://ecite.utas.edu.au/141984 Biological Sciences Ecology Marine and estuarine ecology (incl. marine ichthyology) Refereed Article PeerReviewed 2020 ftunivtasecite https://doi.org/10.1038/s41598-020-62800-7 2021-03-15T23:16:34Z Antarctic krill ( Euphausia superba ) are a key component of the Antarctic food web with considerable lipid reserves that are vital for their health and higher predator survival. Krill lipids are primarily derived from their diet of plankton, in particular diatoms and flagellates. Few attempts have been made to link the spatial and temporal variations in krill lipids to those in their food supply. Remotely-sensed environmental parameters provide large-scale information on the potential availability of krill food, although relating this to physiological and biochemical differences has only been performed on small scales and with limited samples. Our study utilised remotely-sensed data (chlorophyll a and sea surface temperature) coupled with krill lipid data obtained from 3 years of fishery-derived samples. We examined within and between year variation of trends in both the environment and krill biochemistry data. Chlorophyll a levels were positively related to krill lipid levels, particularly triacylglycerol. Plankton fatty acid biomarkers analysed in krill (such as n-3 polyunsaturated fatty acids) increased with decreasing sea surface temperature and increasing chlorophyll a levels. Our study demonstrates the utility of combining remote-sensing and biochemical data in examining biological and physiological relationships between Antarctic krill and the Southern Ocean environment. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Euphausia superba Southern Ocean eCite UTAS (University of Tasmania) Antarctic Southern Ocean The Antarctic Scientific Reports 10 1 |
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Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Biological Sciences Ecology Marine and estuarine ecology (incl. marine ichthyology) |
spellingShingle |
Biological Sciences Ecology Marine and estuarine ecology (incl. marine ichthyology) Hellessey, N Johnson, R Ericson, JA Nichols, PD Kawaguchi, S Nicol, S Hoem, N Virtue, P Antarctic krill lipid and fatty acid content variability is associated to satellite derived chlorophyll a and sea surface temperatures |
topic_facet |
Biological Sciences Ecology Marine and estuarine ecology (incl. marine ichthyology) |
description |
Antarctic krill ( Euphausia superba ) are a key component of the Antarctic food web with considerable lipid reserves that are vital for their health and higher predator survival. Krill lipids are primarily derived from their diet of plankton, in particular diatoms and flagellates. Few attempts have been made to link the spatial and temporal variations in krill lipids to those in their food supply. Remotely-sensed environmental parameters provide large-scale information on the potential availability of krill food, although relating this to physiological and biochemical differences has only been performed on small scales and with limited samples. Our study utilised remotely-sensed data (chlorophyll a and sea surface temperature) coupled with krill lipid data obtained from 3 years of fishery-derived samples. We examined within and between year variation of trends in both the environment and krill biochemistry data. Chlorophyll a levels were positively related to krill lipid levels, particularly triacylglycerol. Plankton fatty acid biomarkers analysed in krill (such as n-3 polyunsaturated fatty acids) increased with decreasing sea surface temperature and increasing chlorophyll a levels. Our study demonstrates the utility of combining remote-sensing and biochemical data in examining biological and physiological relationships between Antarctic krill and the Southern Ocean environment. |
format |
Article in Journal/Newspaper |
author |
Hellessey, N Johnson, R Ericson, JA Nichols, PD Kawaguchi, S Nicol, S Hoem, N Virtue, P |
author_facet |
Hellessey, N Johnson, R Ericson, JA Nichols, PD Kawaguchi, S Nicol, S Hoem, N Virtue, P |
author_sort |
Hellessey, N |
title |
Antarctic krill lipid and fatty acid content variability is associated to satellite derived chlorophyll a and sea surface temperatures |
title_short |
Antarctic krill lipid and fatty acid content variability is associated to satellite derived chlorophyll a and sea surface temperatures |
title_full |
Antarctic krill lipid and fatty acid content variability is associated to satellite derived chlorophyll a and sea surface temperatures |
title_fullStr |
Antarctic krill lipid and fatty acid content variability is associated to satellite derived chlorophyll a and sea surface temperatures |
title_full_unstemmed |
Antarctic krill lipid and fatty acid content variability is associated to satellite derived chlorophyll a and sea surface temperatures |
title_sort |
antarctic krill lipid and fatty acid content variability is associated to satellite derived chlorophyll a and sea surface temperatures |
publisher |
Nature Publishing Group |
publishDate |
2020 |
url |
https://doi.org/10.1038/s41598-020-62800-7 http://www.ncbi.nlm.nih.gov/pubmed/32269236 http://ecite.utas.edu.au/141984 |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Krill Euphausia superba Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Krill Euphausia superba Southern Ocean |
op_relation |
http://ecite.utas.edu.au/141984/1/141984 - Antarctic krill lipid and fatty acid content variability.pdf http://dx.doi.org/10.1038/s41598-020-62800-7 Hellessey, N and Johnson, R and Ericson, JA and Nichols, PD and Kawaguchi, S and Nicol, S and Hoem, N and Virtue, P, Antarctic krill lipid and fatty acid content variability is associated to satellite derived chlorophyll a and sea surface temperatures, Scientific Reports, 10, (1) Article 6060. ISSN 2045-2322 (2020) [Refereed Article] http://www.ncbi.nlm.nih.gov/pubmed/32269236 http://ecite.utas.edu.au/141984 |
op_doi |
https://doi.org/10.1038/s41598-020-62800-7 |
container_title |
Scientific Reports |
container_volume |
10 |
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1 |
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1766268548305387520 |