Fatty acid composition of lipid-rich myctophids and mackerel icefish (Champsocephalus gunnari) - Southern ocean food-web implications
The lipid content, fatty acid composition and calorific value of seven species of mesopelagic deep-sea fish of the family Myctophidae and the mackerel icefish, Champsocephalus gunnari, important in the diet of Southern Ocean marine predators, are presented. Fish were sampled at the Kerguelen Plateau...
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ftunivtasecite:oai:ecite.utas.edu.au:25442 2023-05-15T13:59:07+02:00 Fatty acid composition of lipid-rich myctophids and mackerel icefish (Champsocephalus gunnari) - Southern ocean food-web implications Lea, MA Nichols, PD Wilson, G 2002 https://doi.org/10.1007/s00300-002-0428-1 http://ecite.utas.edu.au/25442 en eng Springer-Verlag http://dx.doi.org/10.1007/s00300-002-0428-1 Lea, MA and Nichols, PD and Wilson, G, Fatty acid composition of lipid-rich myctophids and mackerel icefish (Champsocephalus gunnari) - Southern ocean food-web implications, Polar Biology, 25, (11) pp. 843-854. ISSN 0722-4060 (2002) [Refereed Article] http://ecite.utas.edu.au/25442 Environmental Sciences Environmental Science and Management Wildlife and Habitat Management Refereed Article PeerReviewed 2002 ftunivtasecite https://doi.org/10.1007/s00300-002-0428-1 2019-12-13T21:06:34Z The lipid content, fatty acid composition and calorific value of seven species of mesopelagic deep-sea fish of the family Myctophidae and the mackerel icefish, Champsocephalus gunnari, important in the diet of Southern Ocean marine predators, are presented. Fish were sampled at the Kerguelen Plateau (KP) and Macquarie Ridge (MR) in the Indian and Pacific sectors of the Southern Ocean respectively, to examine geographic variation in lipid compositon. All species of myctophid from KP and Electrona antarctica from MR were high in lipid content (6-18% wet mass), particularly Gymnoscopelus nicholsi (18%) and E. antarctica (15%). The mackerel icefish, and G. fraseri and Protomyctophum tenisoni from MR were generally lower in lipid content (3-5%) and varied significantly in fatty acid composition from KP species. KP myctophids were high in calorific content (9.3 kJ g-1 wet mass) when compared with icefish (5.4 kJ g-1 wet mass) and other published values for prey items of marine predators such as squid (1.74-5 kJ g-1). KP myctophids were distinguished from each other and from C. gunnari and MR specimens by cluster and discriminant function analysis using six fatty acids (16:0, 18:19, 20:19, 22:111, 20:53, 22:63). Article in Journal/Newspaper Antarc* Antarctica E. Antarctica Icefish Polar Biology Southern Ocean eCite UTAS (University of Tasmania) Indian Kerguelen Pacific Southern Ocean Polar Biology 25 11 843 854 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Environmental Sciences Environmental Science and Management Wildlife and Habitat Management |
spellingShingle |
Environmental Sciences Environmental Science and Management Wildlife and Habitat Management Lea, MA Nichols, PD Wilson, G Fatty acid composition of lipid-rich myctophids and mackerel icefish (Champsocephalus gunnari) - Southern ocean food-web implications |
topic_facet |
Environmental Sciences Environmental Science and Management Wildlife and Habitat Management |
description |
The lipid content, fatty acid composition and calorific value of seven species of mesopelagic deep-sea fish of the family Myctophidae and the mackerel icefish, Champsocephalus gunnari, important in the diet of Southern Ocean marine predators, are presented. Fish were sampled at the Kerguelen Plateau (KP) and Macquarie Ridge (MR) in the Indian and Pacific sectors of the Southern Ocean respectively, to examine geographic variation in lipid compositon. All species of myctophid from KP and Electrona antarctica from MR were high in lipid content (6-18% wet mass), particularly Gymnoscopelus nicholsi (18%) and E. antarctica (15%). The mackerel icefish, and G. fraseri and Protomyctophum tenisoni from MR were generally lower in lipid content (3-5%) and varied significantly in fatty acid composition from KP species. KP myctophids were high in calorific content (9.3 kJ g-1 wet mass) when compared with icefish (5.4 kJ g-1 wet mass) and other published values for prey items of marine predators such as squid (1.74-5 kJ g-1). KP myctophids were distinguished from each other and from C. gunnari and MR specimens by cluster and discriminant function analysis using six fatty acids (16:0, 18:19, 20:19, 22:111, 20:53, 22:63). |
format |
Article in Journal/Newspaper |
author |
Lea, MA Nichols, PD Wilson, G |
author_facet |
Lea, MA Nichols, PD Wilson, G |
author_sort |
Lea, MA |
title |
Fatty acid composition of lipid-rich myctophids and mackerel icefish (Champsocephalus gunnari) - Southern ocean food-web implications |
title_short |
Fatty acid composition of lipid-rich myctophids and mackerel icefish (Champsocephalus gunnari) - Southern ocean food-web implications |
title_full |
Fatty acid composition of lipid-rich myctophids and mackerel icefish (Champsocephalus gunnari) - Southern ocean food-web implications |
title_fullStr |
Fatty acid composition of lipid-rich myctophids and mackerel icefish (Champsocephalus gunnari) - Southern ocean food-web implications |
title_full_unstemmed |
Fatty acid composition of lipid-rich myctophids and mackerel icefish (Champsocephalus gunnari) - Southern ocean food-web implications |
title_sort |
fatty acid composition of lipid-rich myctophids and mackerel icefish (champsocephalus gunnari) - southern ocean food-web implications |
publisher |
Springer-Verlag |
publishDate |
2002 |
url |
https://doi.org/10.1007/s00300-002-0428-1 http://ecite.utas.edu.au/25442 |
geographic |
Indian Kerguelen Pacific Southern Ocean |
geographic_facet |
Indian Kerguelen Pacific Southern Ocean |
genre |
Antarc* Antarctica E. Antarctica Icefish Polar Biology Southern Ocean |
genre_facet |
Antarc* Antarctica E. Antarctica Icefish Polar Biology Southern Ocean |
op_relation |
http://dx.doi.org/10.1007/s00300-002-0428-1 Lea, MA and Nichols, PD and Wilson, G, Fatty acid composition of lipid-rich myctophids and mackerel icefish (Champsocephalus gunnari) - Southern ocean food-web implications, Polar Biology, 25, (11) pp. 843-854. ISSN 0722-4060 (2002) [Refereed Article] http://ecite.utas.edu.au/25442 |
op_doi |
https://doi.org/10.1007/s00300-002-0428-1 |
container_title |
Polar Biology |
container_volume |
25 |
container_issue |
11 |
container_start_page |
843 |
op_container_end_page |
854 |
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