New Zealand Journal of Marine and Freshwater Research abstracts

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SIZE COMPOSITION OF JACK MACKEREL CATCHES FROM THE WEST COAST OF NEW ZEALAND

G. D. James

Fisheries Research Division, Ministry of Agriculture and Fisheries, P.O. Box 19062, Wellington, New Zealand

Abstract Catches of iack mackerel Trachurus declivis taken everv 2 months from the west coast of New Zealand show that this species attains lengths of approximately 11 cm and 24 cm at the completion of the first and second years of life respectively. Above these lengths, year classes overlap considerably. Juveniles were found from Westland to North Cape and were most abundant in surface waters.

(Received for publication 20 June 1974) N.Z. Journal of Marine and Freshwater Research 9 (1) : 45-52

PDF file of entire paper: medium quality (442K); (scanned from paper original: notes about this process)

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