A Review of the Systematics and Ecology of Oceanic Squids

Mesopelagic faunal transition across the Subtropical Convergence east of New Zealand

“…Greenwood et ah (1966) and Weitzman (1974) for fishes; Holthuis (1955) and Richardson & Yaldwyn (1958) for prawns; Mauchline & Fisher (1969) for euphausiids;and Allan (1945), Dell (1952Dell ( , 1959 and Clarke (1966) Almost 20% of the euphausiids were badly damaged and unrecognisable. In some hauls, especially the deeper tows over the Chatham Rise, over 80% of the specimens could not be identified.…”

Pelagic squid associationswith a warm-core eddy of the East Australian Current

“…In particular, data on the zoogeography and life history of cephalopods off Australia and New Zealand are notably scant (Nesis 1979) and, for example, it is not yet known if the two eddy species B. riisei and P. giardi occur commonly in eddy source water of the Coral Sea. On a worldwide basis, the five major species in this study have widespread zoogeographic distributions (Clarke 1966;Nesis 1979).…”

“…The works of Pickford (1946), Clarke (1966), Roper (1969), Nesis (1977) and McSweeney (1978) suggest that general distribution patterns of some cephalopods are limited to particular ocean basins or water masses. In fact, the large-scale zoogeography of many oceanic taxa has often been linked with the physical structure of the ocean, and, in particular, to water-mass boundaries (see reviews by Ekman 1953;Ebeling 1962;McGowan 197 1 ;Briggs 1975;van der Spoel and Pierrot-Bults 1979).…”

“…Most non-larval squid of the families Enoploteuthidae and Brachioteuthidae make die1 vertical migrations, occupying depths of 200-800 m during day and migrating to the upper 200-300 m at night (Clarke 1966;Lu and Clarke 1975;Roper and Young 1975). Thus, if migrations are similar in the Tasman Sea, the temperatures at both day and night depths would differ inside and outside the eddy because eddy structure extends to at least 1500 m (Hamon 1965).…”

“…Squid represent the highest level of development among the invertebrates and form an important link in oceanic food webs (Clarke 1966;Zuev and Nesis 1971;Packard 1972). Yet little is known about the distribution and ecology of oceanic squid because many of the fast swimming species can avoid standard oceanographic sampling nets (Clarke 1977;Roper 1977).…”