Diatom analysis of late Holocene sediment cores from Macquarie Harbour, Tasmania

Seventy five diatom species are identified in two sediment cores from Macquarie Harbour, Tasmania. Benthic taxa are overwhelmingly dominant, although peaks in the abundance of the planktonic Ditylum brightwellii could be traced across the area. Diatom assemblages are mostly homogeneous but assemblag...

Full description

Saved in:
Bibliographic Details
Published in:Alcheringa (Sydney) 2003-01, Vol.27 (2), p.135-153
Main Authors: McMinn, Andrew, Augustinus, Paul, Barton, Charlie
Format: Article
Language:English
Subjects:
diatoms
Holocene
Macquarie Harbour
Tasmania
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Seventy five diatom species are identified in two sediment cores from Macquarie Harbour, Tasmania. Benthic taxa are overwhelmingly dominant, although peaks in the abundance of the planktonic Ditylum brightwellii could be traced across the area. Diatom assemblages are mostly homogeneous but assemblages from the most recent samples are clearly identifiable. Biodiversities before and after the impact of the Queenstown copper-lead-zinc mine were little different. The modern diatom assemblages, which have been affected by tailings sedimentation, are clearly differentiated from older, pre-mining assemblages. However, the differences are based on differing relative abundances of diatom species rather than different communities.
ISSN:0311-5518
1752-0754
DOI:10.1080/03115510308619554