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Meromixis in an antarctic fjord: a precursor to meromictic lakes on an isostatically rising coastline

Citation

Gallagher, JB and Burton, HR and Calf, GE, Meromixis in an antarctic fjord: a precursor to meromictic lakes on an isostatically rising coastline, Hydrobiologia, 172, (1) pp. 235-254. ISSN 0018-8158 (1989) [Refereed Article]

Copyright Statement

Copyright 1989 Kluwer Academic Publishers

DOI: doi:10.1007/BF00031625

Abstract

Physico-chemical data and isotopic studies (utilising H14CO3, H218O, 3H2O) suggest that hypersaline meromixis in Ellis Fjord (Vestfold Hills, Antarctica) was initiated during the middle Holocene period, when hypersaline brine, excluded during the annual formation of sea-ice, gravitated in a density current to the bottom. The application of this contemporary information to the genesis of the meromictic lakes found today in the Vestfold Hills, suggest that their meromixis may have developed prior to isolation from the sea. Comparison of physico-chemical data from the meromictic basins of Ellis Fjord with that of the Vestfold Hills saline lake allows some determination of their evolutionary pathways initiated before, during and after isolation from the sea. Further evolution of each lake can be explained through the individual interaction between climate, the catchment size and basin morphology.

Item Details

Item Type:Refereed Article
Keywords:antarctic, fjords, hypersaline, lake evolution, meromixis, polar lakes, Vestfold Hills
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Palaeoecology
Objective Division:Environmental Management
Objective Group:Coastal and estuarine systems and management
Objective Field:Assessment and management of coastal and estuarine ecosystems
UTAS Author:Gallagher, JB (Dr John Barry Gallagher)
ID Code:136931
Year Published:1989
Web of Science® Times Cited:22
Deposited By:Oceans and Cryosphere
Deposited On:2020-01-22
Last Modified:2020-08-19
Downloads:0

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