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Diacyclops (copepoda: Cyclopoida) in Continental Antarctica, including three new species


Karanovic, T and Gibson, JAE and Hawes, I and Andersen, DT and Stevens, MI, Diacyclops (copepoda: Cyclopoida) in Continental Antarctica, including three new species, Antarctic Science, 26, (3) pp. 250-260. ISSN 0954-1020 (2014) [Refereed Article]

Copyright Statement

Copyright 2014 Antarctic Science

DOI: doi:10.1017/S0954102013000643


Contrary to earlier beliefs, crustaceans are present in ice-covered lakes of Antarctica. Interpretation of the significance of this has been hampered by the absence of robust identification of taxa present. We examine cyclopoid copepods from three widely separated lakes. All belong to the michaelseni group of the genus Diacyclops, which is widespread across Continental Antarctica, but do not fit into any existing species. Two new species were identified from eastern Antarctica, D. walkeri from Pineapple Lake (Vestfold Hills) and D. kaupi from Transkriptsii Gulf (Bunger Hills). Most significant was a dense population of a new epibenthic species (D. joycei) associated with microbial mats in Lake Joyce, one of the smaller McMurdo Dry Valleys lakes. This represents the first record of adult cyclopoid copepods from the ice-covered lakes of the Transantarctic Mountains. Continental Antarctica is the centre of diversity for this group of crustaceans and we argue that this is better explained by persistence through past glacial advances rather than by recent post-glacial colonization. The existence of a species endemic to Lake Joyce but apparently absent from other Dry Valleys lakes is discussed in relation to our understanding of the history of the McMurdo Dry Valleys lakes and their faunas.

Item Details

Item Type:Refereed Article
Keywords:biodiversity, biogeography, crustaceans, McMurdo Dry Valleys lakes
Research Division:Biological Sciences
Research Group:Zoology
Research Field:Invertebrate biology
Objective Division:Environmental Management
Objective Group:Other environmental management
Objective Field:Other environmental management not elsewhere classified
UTAS Author:Karanovic, T (Dr Tomislav Karanovic)
UTAS Author:Gibson, JAE (Dr John Gibson)
ID Code:98858
Year Published:2014
Web of Science® Times Cited:7
Deposited By:IMAS Research and Education Centre
Deposited On:2015-03-05
Last Modified:2018-03-19

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