New Zealand Journal of Marine and Freshwater Research abstracts
Description and genetic identification of the early life-stages of Notolabrus
fucicola and N. tetricus from Tasmanian waters, Australia, with
notes on their newly-settled juveniles
D. C. Welsford1,2
A. R. Jordan1
A. J. Smolenski2
1Tasmanian Aquaculture and Fisheries Institute
Marine Research Laboratories
University of Tasmania
GPO Box 252 49, Hobart
TAS 7001, Australia
2School of Zoology
University of Tasmania
GPO Box 252 05, Hobart
TAS 7001, Australia
email: Dirk.Welsford@utas.edu.au
Abstract The early life-stages of Notolabrus fucicola
and N. tetricus are described and illustrated. Developmental stages
examined included eggs and yolk-sac larvae reared in aquaria and post-settlement
juveniles collected from artificial habitats in the coastal waters of eastern
Tasmania, Australia. Larvae were similar to other labrids previously described.
Species-specific characters were only evident after settlement, and with
the development of scales at c. 15 mm standard length. A molecular assay,
based on restriction fragment length polymorphism (RFLP), enabled the discrimination
of all five of the closely-related wrasses in the genera Notolabrus,
Pseudolabrus, Dotalabrus, and Pictilabrus found on the
east coast of Tasmania. This study constitutes the first description of the
early life-stages of Notolabrus spp. from temperate Australia.
Keywords larval development; temperate reef fish; Labridae;
Notolabrus tetricus; Notolabrus fucicola; Pseudolabrus psittaculus;
Dotalabrus aurantiacus; Pictilabrus laticlavius
M03043; Received 4 August 2003; accepted 3 March 2004; Online publication
date 8 June 2004
New Zealand Journal of Marine and Freshwater Research, 2004, Vol. 38:
267-277
0028-8330/04/3802-0267 © The Royal Society of New Zealand 2004
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