University of Tasmania
whole_SloaneRobertDamien1983_thesis.pdf (5.34 MB)

A biological basis for the Tasmanian freshwater eel fishery

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posted on 2023-05-27, 16:21 authored by Sloane, Robert Damien
This thesis reports a five year investigation into various aspects of the biology of the freshwater eels Anguilla australis australis and Anguilla reinhardtii in Tasmania, from the tine of first entry of glass-eels into fresh water to the returning migration of adult eels to the sea. The invasion of fresh water by glass-eels of both species was studied in streams on the east coast of Tasmania. A. reinhardtii glass-eels were found to enter fresh water mainly during February, March and April whereas A. a. australis glass-eels exhibited a more extensive influx from March through to November. For both species the stage of pigmentation of glass-eels was found to advance as the season progressed and length, weight and condition showed an initial decline with advancing pigmentation. The otoliths of invading glass-eels of both species appeared similar with a single summer growth ring indicating a larval life of between 12 and 18 months.


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Copyright 1982 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) Thesis (Ph.D.) - University of Tasmania, 1983. Bibliography: l. 169-179

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