New Zealand Journal of Marine and Freshwater Research abstracts
Short communication: Lipid content in rainbow trout (Oncorhynchus mykiss) fry and parr reared in spawning tributaries of Lake Taupo, New Zealand
Michel Dedual
Department of Conservation
Private Bag, Turanga Place
Turangi, New Zealand
email: mdedual@doc.govt.nz
Abstract The total lipid content of fry (25-30 mm) and parr (55-110 mm) of rainbow trout (Oncorhynchus mykiss Richardson 1836) was measured in spring 1996 and 1997 and in autumn 1997 in six trout-rearing tributaries of Lake Taupo, New Zealand. The fat content of fry was variable between streams and some streams had a higher inter-annual variation than others. The fat content of parr was also variable among streams but no difference could be found between seasons. The streams that produced fry with high fat content did not always produce parr with high fat content.
Keywords fat content; fry; parr; rainbow trout; Taupo streams
M02009 Received 1 February 2002; accepted 9 May 2002; Published 14 November
New Zealand Journal of Marine and Freshwater Research, 2002, Vol. 36: 809-814
0028-8330/02/3604-0809 $7.00 © The Royal Society of New Zealand 2002
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