Résultats de la recherche
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An exploratory fishing expedition for Dissostichus eleginoides around the South Sandwich Islands, Antarctica
with a view to opening a new fishery under the auspices of the Commission for the Conservation of ... V, owned by the company Frioaysen S. A.. Fishing was by bottom longline, and data were collected ... following guidelines set out in the CCAMLR Scientific Observers Manual and in a memorandum of understanding ... between the Governments of Chile and the UK. A new fishery in Subarea 48.4 was found not be commercially ...
Meeting Document : SC-CAMLR-XII/BG/04 : Auteur(s): Delegations of Chile and United Kingdom
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BEACH DEBRIS SURVEY – MAIN BAY, BIRD ISLAND, SOUTH GEORGIA 2006/2007
Island, South Georgia (covering the period 1 October 2006 to 30 September 2007) a total of 365 items were ... collected. This represents a reduction by 33% on the 544 items recorded in 2005/06 and a decrease in mass of ... clearly identified as being the end of a multifilament line where a hook would have been attached. Five ...
Meeting Document : WG-FSA-08/24 : Auteur(s): F. Le Bouard (UK)
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Diet composition of Champsocephalus gunnari in Subarea 48.3, Dr Eduardo Holmberg survey, February/ March 1994
the coefficient Q (%) showed a greater importance of T. gaudichaudii with respect to krill. It is ... possible that the inconsistencies found between the results obtained by both methods are due to a ... summer season; a fact that might be related with a significant change in surface temperature observed ... during the cruise. Author(s): E. Barrera-Oro, R. Casaux and A. Roux (Argentina) Title: Diet composition ...
Meeting Document : WG-FSA-94/27 : Auteur(s): E. Barrera-Oro, R. Casaux and A. Roux (Argentina)
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Update on the external review of the Generalised Yield Model (GYM) software and manual
WG-FSA-SAM at its meeting in July 2004; • WG-FSA-SAM to consider the review and advise WG-FSA. A call ... of opportunity for conducting a review before the 2004 meeting of WGFSA-SAM passed. As a way forward ... external review of GYM. The Secretariat could then send a new call for tenders in August 2004. Members ... the outcome of this process and secure appropriate funding for a review in 2005. Author(s): CCAMLR ...
Meeting Document : WG-FSA-SAM-04/05 : Auteur(s): CCAMLR Secretariat
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Results of trials undertaken around Crozet Island using pots to target Patagonian toothfish
Abstract: Patagonian toothfish (Dissostichus eleginoides) is the target species of a bottom ... accidental bird mortality. In order to find a solution to these issues a 25-day pot trial cruise was ... conducted on board vessel Austral Leader II from January 22nd to February 17th 2010 with a period of ... in fishing efficiency and in their by catch. Crab by-catch was identified as a major issue which ...
Meeting Document : WG-FSA-10/10 : Auteur(s): N. Gasco, P. Tixier and C. Guinet (France)
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Connectivity and population structure in Pleuragramma antarcticum along the west Antarctic Peninsula
simulations using a circulation model. Differences in length distributions and maturity suggested two discrete ... Marguerite Bay, with no mixing between. The presence of a single length mode at Charcot Island and Marguerite ... Bay corresponding to the year class found during GLOBEC 2001 suggested a dominant cohort and no local ... , without similar collapses to the north and south, suggest a third population in the central WAP. Analyses ...
Meeting Document : WG-FSA-10/16 : Auteur(s): J. Ashford, J. Ferguson, A. Piñones, J. Torres and W. Fraser
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LENGTH-BASED ASSESSMENT FOR MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) IN SUB-AREA 48.3
projects these numbers forward under the given harvest control rule to set a two‐year TAC. One issue is the ... accurate identification of age cohorts from the survey data. In this paper we describe a length‐based ... approach that removes the problem of cohort determination. A stratified bootstrap technique (consistent ... the population numbers‐at‐length. A comparison of this method and the existing age‐based CMIX/GYM ...
Meeting Document : WG-FSA-09/27 : Auteur(s): R.M. Hillary (Australia), C.T.T. Edwards, R.E. Mitchel and D.J. Agnew (United Kingdom)
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Population assessment of Patagonian toothfish in Subarea 48.4
Subarea 48.4. The Subarea is divided into two management regions and assessed using a CASAL assessment of ... D. eleginoides in the northern region and a simple Petersen biomass estimate derived for D ... has been retained although a small number of changes have been made to try to improve the fit of the ... model and to reduce the dependency on a relatively small amount of data. These changes comprise the ...
Meeting Document : WG-FSA-12/36 : Auteur(s): R. Scott (United Kingdom)
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Descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in Subareas 88.1 & 88.2 for the years 2000–01 to 2014–15
Subareas 88.1 and 88.2 through the 2015 season. A total of 44 827 Antarctic toothfish have been released ... catch in the Ross Sea region. Tag recapture data showed that most fish are recaptured only a short ... distance from their point of release, typically less than 100 km. However, a small proportion of tagged ... in 2015, close to the recent average. SSRU 88.2H showed a similar annual number of tag returns ...
Meeting Document : WG-FSA-15/37 : Auteur(s): S.J. Parker and S. Mormede (New Zealand)
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High-resolution ocean modelling of the South Georgia and South Orkney Islands regions
South Orkney Islands is highly productive, with a history of commercial exploitation. Many of the key ... regions. The models are regional applications of NEMO with a ~3 km horizontal resolution, and include key ... reanalysis, a seasonal glacial melt cycle, and with sea ice processes incorporated using LIM3. The models ... will be used to generate a ~20 year time series of oceanographic flows and water mass properties, which ...
Meeting Document : WG-EMM-16/15 : Auteur(s): E. Young, E. Murphy and P. Trathan