File(s) not publicly available
Nutrient stress gradient in the bottom 5 cm of fast ice, McMurdo Sound, Antarctica
journal contribution
posted on 2023-05-16, 11:49 authored by Andrew McMinnAndrew McMinn, Skerratt, J, Trull, T, Ashworth, CM, Lizotte, MOne-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.
History
Publication title
Polar BiologyVolume
21Issue
4Pagination
220-227ISSN
0722-4060Department/School
Institute for Marine and Antarctic StudiesPublisher
Springer-VerlagPlace of publication
NY, USARepository Status
- Restricted