Last updated on 16 December 2016

SUMMARY

SUMMARY

IDENTIFICATION

SCIENTIFIC NAME(s)

Doryteuthis (amerigo) gahi

SPECIES NAME(s)

Patagonian squid

Several authors found that a single stock of Patagonian squid exists around Falkland Islands and that there are no genetic differences between spawning cohorts (e.g. Carvalho and Pitcher, 1989; Vega et al., 2001; Shaw et al., 2004). However there are two fishing seasons related with two spawning cohorts – autumn-spawning cohort (ASC) and the spring-spawning cohort – that are subject to different oceanographic conditions, show distinct dynamics, are assessed and managed separately (Arkhipkin et al., 2007; FIG, 2013) and were thus here considered. Both national and international fleets operate within the Falkland Interim Conservation and Management Zone (FICZ) and Falkland Islands Outer Conservation Zone (FOCZ) and the existence of a distinc stock out of FICZ is referred by Casey et al. (2013) but further research is needed. Besides, Arkhipkin et al. (2007) consider that the life cycle of Patagonian squid is completed within FICZ. The map below regards an approximate distribution of both spawning stocks on the eastern-southern area of Falkland Islands.


ANALYSIS

No related analysis

FISHSOURCE SCORES

Management Quality:

Management Strategy:

NOT YET SCORED

Managers Compliance:

NOT YET SCORED

Fishers Compliance:

NOT YET SCORED

Stock Health:

Current
Health:

NOT YET SCORED

Future Health:

NOT YET SCORED


RECOMMENDATIONS

RETAILERS & SUPPLY CHAIN
  • This profile is not currently high on our priority list for development, and we can’t at this time provide an accurate prediction of when it will be developed. To speed up an evaluation of the sustainability status of lower priority fisheries we have initiated a program whereby industry can directly contract SFP-approved analysts to develop a FishSource profile on a fishery. More information on this External Contributor Program is available at https://www.sustainablefish.org/Programs/Science/External-Contributor-Program.
  • Ensure your supply chain is represented in SFP’s Global Squid Supply Chain Roundtable to review improvement needs in this and other similar fisheries, catalyze fishery improvement projects, and monitor progress in improvement efforts.

FIPS

No related FIPs

CERTIFICATIONS

No related MSC fisheries

Fisheries

Within FishSource, the term "fishery" is used to indicate each unique combination of a flag country with a fishing gear, operating within a particular management unit, upon a resource. That resource may have a known biological stock structure and/or may be assessed at another level for practical or jurisdictional reasons. A fishery is the finest scale of resolution captured in FishSource profiles, as it is generally the scale at which sustainability can most fairly and practically be evaluated.

ASSESSMENT UNIT MANAGEMENT UNIT FLAG COUNTRY FISHING GEAR
Autumn-spawning cohort Falkland Islands Falkland Islands (malvinas) Bottom trawls
Spain Bottom trawls
Spring-spawning cohort Falkland Islands Falkland Islands (malvinas) Bottom trawls
Spain Bottom trawls

Analysis

OVERVIEW

RECOMMENDATIONS

Last updated on 16 October 2018

Recommendations to Retailers & Supply Chain
  • This profile is not currently high on our priority list for development, and we can’t at this time provide an accurate prediction of when it will be developed. To speed up an evaluation of the sustainability status of lower priority fisheries we have initiated a program whereby industry can directly contract SFP-approved analysts to develop a FishSource profile on a fishery. More information on this External Contributor Program is available at https://www.sustainablefish.org/Programs/Science/External-Contributor-Program.
  • Ensure your supply chain is represented in SFP’s Global Squid Supply Chain Roundtable to review improvement needs in this and other similar fisheries, catalyze fishery improvement projects, and monitor progress in improvement efforts.

1.STOCK STATUS

2.MANAGEMENT QUALITY

3.ENVIRONMENT AND BIODIVERSITY

FishSource Scores

MANAGEMENT QUALITY

STOCK HEALTH:

No data available
No data available
No data available
No data available
No data available
No data available
No data available
No data available
No data available
No data available
No data available
No data available

Fishery Improvement Projects (FIPs)

No related FIPs

Certifications

Marine Stewardship Council (MSC)

No related MSC certifications

Sources

Credits

Agnew, D.J, Baranowski, R., Beddington, J.R., des Clers, S., Nolan, C.P. 1998. Approaches to assessing stocks of Loligo gahi around the Falkland Islands, Fisheries Research 35(3): 155–169 http://www.sciencedirect.com/science/article/pii/S0165783698000836

Arkhipkin, A. I., Middleton, D. A., Barton, J. 2007. Management and Conservation of a Short-Lived Fishery Resource: Loligo gahi around the Falkland Islands, American Fisheries Society Symposium, 10 pp. http://www.fisheriessociety.org/proofs/wfc/arkhipkin.pdf

Carvalho, G.R. and Pitcher, T.J. 1989. Biochemical genetic studies on the Patagonian squid Loligo gahi d’Orbigny. II. Population structure in Falkland waters using isozymes, morphometrics and life history data, Journal of Experimental Marine Biology and Ecology 126: 243-258 http://www.researchgate.net/publication/223846898_Biochemical_genetic_studies_on_the_Patagonian_squid_Loligo_gahi_d’Orbigny.II._Population_structure_in_Falkland_waters_using_isozymes_morphometrics_and_life_historydata

Casey, J., Vanhee, W., Doerner, H. 2013. Review of scientific advice for 2014, Consolidated Advice on Fish Stocks of Interest to the European Union (STECF-13-27), Scientific, Technical and Economic Committee for Fisheries (STECF), European Commission, 578 pp. http://stecf.jrc.ec.europa.eu/documents/43805/648827/2013-11_STECF+13-27+-+Consolidated+Review+of+advice+for+2014_JRC86158.pdf

Falkland Islands Government (FIG), 2013. Fisheries Department Fisheries Statistics, Volume 17 (2003-2012), FIG Fisheries Department, 72 pp http://www.fis.com/falklandfish/Bull17.pdf

Shaw, P. W., Arkhipkin, A. I., Adcock, G. J., Burnett, W. J., Carvalho, G. R., Scherbich, J. N., Villegas, P. A. 2004. DNA markers indicate that distinct spawning cohorts and aggregations of Patagonian squid, Loligo gahi, do not represent genetically discrete subpopulations, Marine Biology144(5): 961-970 http://link.springer.com/article/10.1007%2Fs00227-003-1260-z#page-1

Vega, M. A., Rocha, F. J., Osorio, C. 2001. Morfometría comparada de los estatolitos del calamar Loligo gahi d’Orbigny, 1835 (Cephalopoda: Loliginidae) del norte de Perú e islas Falkland, Investig. mar 29(1): 3-9 http://www.scielo.cl/pdf/imar/v29n1/art01.pdf

References

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