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New data on spawning and bathymetric distribution of the Patagonian squid, Loligo gahi

Published online by Cambridge University Press:  12 February 2009

Vladimir Laptikhovsky
Vladimir Laptikhovsky*
Affiliation:
Fisheries Department, Falkland Islands Government, PO Box 598, Stanley, FIQQ 1ZZ, Falkland Islands
*
Correspondence should be addressed to: Vladimir Laptikhovsky, Fisheries Department, Falkland Islands Government, PO Box 598, Stanley FIQQ IZZ, Falkland Islands email: [email protected]
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Abstract

Recent scientific and commercial deepwater trawls provide evidence that the loliginid squid, Loligo gahi occurs much deeper than previously believed. Three immature and maturing squids were caught in two hauls between 528 and 626 m depth, exceeding the previous maximum recorded depth of 400 m. An L. gahi egg mass was found on the bottom attached to polychaete tube sampled from depths of 68–71 m. It represents a new spawning habitat, because before the species was known to spawn only in inshore kelp forests, well off the bottom, at depths <20 m.

Keywords

Loligo gahideep-seasFalkland Islands
Type
Research Article
Information
Marine Biodiversity Records , Volume 1 , January 2008 , e50
Copyright
Copyright © Marine Biological Association of the United Kingdom 2007

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References

REFERENCES

Agnew, D.J., Hill, S.L., Beddington, J.R., Purchase, L.V. and Wakeford, R.C. (2005) Sustainability and management of Southwest Atlantic squid fisheries. Bulletin of Marine Science 76, 579–594.Google Scholar
Arkhipkin, A.I., Laptikhovsky, V.V. and Middleton, D.A.J. (2000) Adaptations for cold water spawning in loliginid squid: Loligo gahi in Falkland waters. Journal of Molluscan Studies 66, 551–564.CrossRefGoogle Scholar
Arkhipkin, A.I. and Middleton, D.A.J. (2002) Sexual segregation in ontogenetic migrations by the squid Loligo gahi around the Falkland Islands. Bulletin of Marine Science 71, 109–127.Google Scholar
Arkhipkin, A.I. and Middleton, D.A.J (2003) In situ monitoring of the duration of embryonic development in the squid Loligo gahi (Cephalopoda: Loliginidae) on the Falkland shelf. Journal of Molluscan Studies 69, 123–133.CrossRefGoogle Scholar
Arnold, J.N. (1965) Normal embryonic stages of the squid Loligo pealii (Lesueur). Biological Bulletin. Marine Biological Laboratory, Woods Hole 128, 24–32.CrossRefGoogle Scholar
Boyle, P.R., Pierce, G.J. and Hastie, L.C. (1995) Flexible reproductive strategies in the squid Loligo forbesi. Marine Biology 121, 501–508.CrossRefGoogle Scholar
FIG (2006) Fishery Statistics, vol. 10 (1996–2005). Stanley, Falkland Islands: Falkland Islands Government, Fisheries Department.Google Scholar
Hatfield, E.M.C. (1992) Recruitment, demography and growth of the Patagonian squid Loligo gahi (D'Orbigny) in Falkland Island waters. PhD thesis, British Antarctic Survey, Cambridge U.K.Google Scholar
Lordan, C. and Casey, J. (1999). The first evidence of offshore spawning in the squid species, Loligo forbesi. Journal of the Marine Biological Association of the United Kingdom 79, 379–381.CrossRefGoogle Scholar
Roper, C.F.E., Sweeney, M.J. and Nauen, G. (1984) Cephalopods of the world. An annotated and illustrated catalogue of species of interest to fisheries. FAO: Rome [FAO Species Catalogue, vol. 125, pp. 277].Google Scholar
Salman, A. and Laptikhovsky, V. (2002) First occurrence of egg masses of Loligo forbesi (Cephalopoda: Loliginidae) in deep waters of the Aegean Sea. Journal of the Marine Biological Association of the United Kingdom 82, 925–926.CrossRefGoogle Scholar