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

journal contribution
posted on 2023-05-16, 14:50 authored by Andrew McMinnAndrew McMinn, Augustinus, P, Barton, C
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.

History

Publication title

Alcheringa

Volume

27

Issue

1-2

Pagination

135-153

ISSN

0311-5518

Department/School

Institute for Marine and Antarctic Studies

Publisher

Geological Society of Australia Inc

Place of publication

Sydney

Repository Status

  • Restricted

Socio-economic Objectives

Marine biodiversity

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