New Zealand Journal of Marine and Freshwater Research abstracts

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Arrow squids of the genjis Nototodarus in New Zealand waters: systematics, biology, and fisheries

P. J. SMITH^'

R. H. MATTLIN^'

M. A. ROELEVELD²

T. OKUTANP³

^'Fisheries Research Centre
Ministry of Agriculture and Fisheries
P. O. Box 297, Wellington, New Zealand

²South African Museum
P. O. Box 61, Cape Town South Africa

³Tokyo University of Fisheries 4-5-7 Konan, Minato-ku Tokyo 108, Japan

Abstract Two species of arrow squid, Nototodarus (Oegopsida: Ommastrephidae), ar; caught in New Zealand waters. The close similar ty in most morphometric characters has lead to confusion over the status of the two species. They are distinguished by the number of pairs of suckers on the first right arm; adult males are distingui shed by the number of proximal tubercles and the riorphology of the distal part of the hectocotylised arm; fresh or frozen specimens can be identified )y gel elec-trophoresis of the enzyme glycerol-3-phosphate dehydrogenase. Nototodarus sloanii ii» found in southern waters and N. gouldi in more northerly waters around New Zealand as well as southern waters of Australia. Differences between the two species are described and notes presemed on their biology, abundance, and exploitation.

Keywords arrow squid; Nototodarus sloanii; Nototodarus gouldi; hectocotylus; morphometrics; electrophoresis; New Zealand

New Zealand Journal of Marine and Freshwater Research, 1987, Vol. 21 0028-8330/87/2102-03"! 5$2.50/0 © grown copyright 1987 Received 3 August 1986; accepted 28 November 1986

PDF file of entire paper: medium quality (1105K); (scanned from paper original: notes about this process)

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