Thesis
Consequences of a catadromous life-strategy for population structuring in the Australian Bass (Macquaria novemaculeata): morphological, alloyzme and mitochondrial DNA evidence for restricted dispersal along a single dimension (isolation by distance)
Southern Cross University, School of Environmental Science and Management, Center for Animal Conservation Genetics
Doctor of Philosophy (PhD), Southern Cross University
1998
Metrics
2 File views/ downloads
41 Record Views
Abstract
The Australian bass, Macquaria novemaculeata is a catadromous species restricted to coastal drainages of south-eastern Australia and recently has undergone reductions in population numbers. Morphometric variability among bass from seven distinct drainages was used to test for the presence of stock structuring. Due to sexual dimorphism males and females were treated separately. For both male and female M. novemaculeata, significant heterogeneity in morphology among sample locales was revealed by univariate statistics and discriminant function analysis, with morphological variability found to vary along a cline. The demonstration of population-specific morphological traits among M. novemaculeata from different river drainages may indicate that inter-populational movement is restricted and that each sample locale constitutes a separate stock.
Details
- Title
- Consequences of a catadromous life-strategy for population structuring in the Australian Bass (Macquaria novemaculeata): morphological, alloyzme and mitochondrial DNA evidence for restricted dispersal along a single dimension (isolation by distance)
- Creators
- Dean R Jerry
- Contributors
- Peter Baverstock (Supervisor) - Southern Cross University
- Awarding Institution
- Southern Cross University; Doctor of Philosophy (PhD)
- Theses
- Doctor of Philosophy (PhD), Southern Cross University
- Publisher
- Southern Cross University, School of Environmental Science and Management, Center for Animal Conservation Genetics
- Number of pages
- ix, 166
- Identifiers
- 991012918700202368
- Copyright
- © Dean R Jerry 1998
- Academic Unit
- School of Environment, Science and Engineering
- Resource Type
- Thesis