2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
6/06/2017 | 11:45 AM - 12:00 PM | THE FINE SCALE HABITAT PREFERENCE OF FRESHWATER MUSSEL, WESTRALUNIO CARTERI, IN SOUTH-WEST AUSTRALIA | 305A
THE FINE SCALE HABITAT PREFERENCE OF FRESHWATER MUSSEL, WESTRALUNIO CARTERI, IN SOUTH-WEST AUSTRALIA
Freshwater mussels are key ecological generalists in aquatic communities. Westralunio carteri is the only freshwater mussel species in south-west Australia. The fine scale distribution of adult mussels of this species within river reaches has been investigated using quadrat searches and modelled against a range of environmental factors. A total number of 604 mussels were found in eight different rivers at a mean density of 32.4±5.8 individuals/m2. The distribution of W. carteri was highly aggregated with a Lloyd’s patchiness index of 3.72. A model averaging approach indicated that the most important factors explaining mussel distribution were substrate grain size, water depth and the size of benthic debris, with fine silt, shallower water and larger debris favoured by this species. Juvenile mussels may have different habitat preferences than adult mussels and further studies are required to investigate this.
- C12 Conservation Ecology
- C03 Invertebrates
- C05 Unionid Ecology
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Presenters/Authors
Le Ma
(), Murdoch University, Vicenk.Male@gmail.com;
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Alan Lymbery
(), Murdoch University, A.Lymbery@murdoch.edu.au ;
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David Morgan
(), Murdoch University, D.Morgan@murdoch.edu.au ;
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Stephen Beatty
(), Murdoch University, S.Beatty@murdoch.edu.au;
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