Demography and distribution of the Patagonian squid (Loligo gahi d'Orbigny) during the austral winter

Hatfield, E.M.C.; Rodhouse, P.G.; Porebski, J.. 1990 Demography and distribution of the Patagonian squid (Loligo gahi d'Orbigny) during the austral winter. ICES Journal of Marine Science, 46 (3). 306-312. 10.1093/icesjms/46.3.306

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Official URL: http://dx.doi.org/10.1093/icesjms/46.3.306

Abstract/Summary

A bottom-trawl survey of the Falklands Interim Conservation Zone was carried out during July and August 1988. Samples of Loligo gahi were collected from depths of 50–400 m and analysed for size composition, maturity, and stomach fullness. L. gahi increased in size and maturity with depths >100 m. Immature and fully mature squid were found at depths ≤100 m. The data support the hypothesis that this species spawns in shallow water and migrates down the continental shelf and continental slope after hatching. It then returns to shallow water to spawn. Highest concentrations of squid appeared to occur at depths and in areas where the commercial fishery operates. Samples were only taken during daylight hours, and stomach fullness was at its highest in the mid-afternoon. Several of the life history features resemble closely those of other loliginid species.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1093/icesjms/46.3.306
ISSN:	1054-3139
Date made live:	27 Jun 2018 12:45 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/520406

Item Type:

Publication - Article

Digital Object Identifier (DOI):

10.1093/icesjms/46.3.306

ISSN:

1054-3139

Date made live:

27 Jun 2018 12:45 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/520406