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Nutrient stress gradient in the bottom 5 cm of fast ice, McMurdo Sound, Antarctica


McMinn, A and Skerratt, J and Trull, T and Ashworth, CM and Lizotte, M, Nutrient stress gradient in the bottom 5 cm of fast ice, McMurdo Sound, Antarctica, Polar Biology, 21, (4) pp. 220-227. ISSN 0722-4060 (1999) [Refereed Article]

DOI: doi:10.1007/s003000050356


One-centimeter-scale vertical sampling of fast ice from McMurdo Sound, Antarctica reveals evidence of progressive nutrient limitation with distance above the ice/water interface. Over the bottom 6 cm photosynthetically active radiation increases by between 1.8 and 3 times, C:N increases from 6.8 to 19.8 and δ13C increases from -18 to -12. Fatty acid corn position also changes with a consistent decline in polyunsaturated fatty acids and a rise in saturated fatty acids. These factors all suggest severe and progressive nutrient limitation with distance from the ice/water interface.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Marine and Estuarine Ecology (incl. Marine Ichthyology)
Objective Division:Environment
Objective Group:Flora, Fauna and Biodiversity
Objective Field:Antarctic and Sub-Antarctic Flora, Fauna and Biodiversity
UTAS Author:McMinn, A (Professor Andrew McMinn)
UTAS Author:Skerratt, J (Dr Jenny Skerratt)
UTAS Author:Trull, T (Professor Thomas Trull)
UTAS Author:Ashworth, CM (Mr Chris Ashworth)
ID Code:16943
Year Published:1999
Web of Science® Times Cited:60
Deposited By:IASOS
Deposited On:1999-08-01
Last Modified:2011-08-05

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