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A biological basis for the Tasmanian freshwater eel fishery
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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 |
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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 |
Additional Information: | Thesis (Ph.D.) - University of Tasmania, 1983. Bibliography: l. 169-179 |
Item Statistics: | View statistics for this item |
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