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Abstract

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.

Item Type:	Thesis - PhD
Authors/Creators:	Sloane, Robert Damien
Keywords:	Eels, Eel fisheries
Copyright Holders:	The Author
Copyright Information:	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)
Additional Information:	Thesis (Ph.D.) - University of Tasmania, 1983. Bibliography: l. 169-179
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