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The macrobenthic fauna of Great Lake and Arthurs Lake, Tasmania

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Fulton, W (1981) The macrobenthic fauna of Great Lake and Arthurs Lake, Tasmania. Unspecified thesis, University of Tasmania.

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Abstract

The histories of Great Lake and Arthurs Lake are
outlined In terms of geology, geomorphology, discovery,
previous biological collections and drainage alterations.
Collections of the benthic fauna were made from six
sites in each lake every two months for a period of
twelve months in Great Lake and fourteen months in Arthurs
Lake. A total of 1560 grab samples in 20 sample series
were examined. The number of individuals in each species
was counted and total wet weights for each sample series
were estimated. Physical data collected included sediment
particle size distribution and organic content as well as
temperature readings.
An accurate and comparatively complete species list for
each lake has been compiled and affinities are discussed.
Approximately 15 species collected during the survey have
been recognised as new to science and taxonomic descriptions
have been made, or are pending.
The data were briefly examined for variation within
sample series at each site and for seasonal variation
within a site. Some data on life histories of certain
species are presented.
Detailed analyses of faunal variation between sites,
within and between lakes were made. This was done using
both qualitative and quantitative (numbers of individuals)
data. Cluster analysis, using various sorting strategies,
generally grouped sites from the original lake areas of
both lakes before grouping sites from different levels of the same lake. Principal coordinates analysis gave similar
results.
Biomass levels are presented and discussed in terms
of component species groups. Instantaneous growth rates
of some species are briefly examined.
The species diversity and benthic biomass of the two
lakes are discussed in relation to other Tasmanian,
Australian and overseas lakes. The topics of lake typology
and lake classification are examined both in relation to
Australian lakes and in general. The question of prediction
of lacustrine production levels is also briefly examined.

Item Type: Thesis (Unspecified)
Keywords: Lake fauna, Benthos
Copyright Holders: The Author
Copyright Information:

Copyright 1981 the Author - The University is continuing to endeavour to trace the copyright owner(s) and in the meantime this item has been reproduced here in good faith. We would be pleased to hear from the copyright owner(s).

Additional Information:

Thesis (M.Sc.)--University of Tasmania, 1981. Includes as attachments two previously pub. papers: Some aquatic oligochaeta from Tasmania, by Ralph Brinkhurst and Wayne Fulton; On Haplotaxis ornamentus sp. nov. (oligochaeta, haplotaxidae) from Tasmania, by Ralph Brinkhurst and Wayne Fulton. Bibliography: l. 176-188

Date Deposited: 09 Dec 2014 00:15
Last Modified: 11 Mar 2016 05:56
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