New Zealand Journal of Marine and Freshwater Research abstracts

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A CONSIDERATION OF THE WHITEBAIT STAGE OF GALAXIAS MACULATUS ATTENUATUS (JENYNS)

Vivienne Benzie (Mrs C. J. Burrows)

Department of Zoology, University of Canterbury

Abstract The size composition of a season's catch of Galaxias maculatus attenuatus (Jenyns) whitebait is given. An analysis of consecutive catches shows that there is no overall increase in the size of the whitebait caught. This supports the theory that these fish have reached a physiological stage at which they migrate up accessible freshwater streams. The subsequent changes are so great that they warrant the term metamorphosis. The whitebait stages of other species of Galaxias are briefly compared.

N.Z. Jl mar. Freshwat. Res, 2: 559-73
(Received for publication 5 December 1967)

PDF file of entire paper: medium quality (652K); (scanned from paper original: notes about this process)

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