Distribution and morphological characters of immature Martialia hyadesi (Cephalopoda: Oegopsida) in New Zealand waters

Before 1985, Martialia hyadesi (Cephalopoda: Ommastrephidae) in the Pacific Ocean was known only from the Eltanin Fracture Zone and Macquarie Island. A joint Japan‐New Zealand squid survey around New Zealand captured many immature ommastrephid squids. Gel electrophoresis confirmed the presence of im...

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Bibliographic Details
Main Authors: Uozumi, Yuji, Förch, Ellen Celia, Okazaki, Toshio
Format: Article in Journal/Newspaper
Language:English
Published: Taylor & Francis 1991
Subjects:
Eltanin Fracture Zone
New Zealand
Pacific
Auckland Island
Macquarie Island
Online Access:https://oceanrep.geomar.de/id/eprint/36431/
https://oceanrep.geomar.de/id/eprint/36431/1/2002.pdf
Description
Summary:Before 1985, Martialia hyadesi (Cephalopoda: Ommastrephidae) in the Pacific Ocean was known only from the Eltanin Fracture Zone and Macquarie Island. A joint Japan‐New Zealand squid survey around New Zealand captured many immature ommastrephid squids. Gel electrophoresis confirmed the presence of immature M. hyadesi. Aspects of the external morphology are described. The distinctive tentacle club was evident in the smallest specimen examined, 19 mm dorsal mantle length (ML). Arm trabeculae were first evident in specimens of 40–50 mm ML. Immature squid were distributed around and southward of the Subtropical Convergence Zone. The presence of very small squid (< 10 mm ML) indicated spawning on or near the Auckland Island Shelf.

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