Résultats de la recherche

1. Population structure of the Antarctic toothfish, Dissostichus mawsoni from the Areas 58 and 88 in the Antarctic Ocean based on mitochondrial and microsatellite DNA markers

   polymorphism (h =0.109, π =0.0002) with only eight COI haplotypes in 213 individuals, connected only by 1-3 ... mutational steps. Nonetheless, microsatellites showed much higher variation with allelic richness (AR) values ... suggest that the sampled 88 Subarea populations are likely to comprise a well-admixed single gene pool ... some populations, the possibility of existence of multiple stocks could not be fully excluded. To ...

   Meeting Document : WG-FSA-2019/36 : Auteur(s): H.-K. Choi, J.E. Jang, S.Y. Byeon, S. Chung, S.-G. Choi, H. W. Kim and H.J. Lee

2. AN ASSESSMENT OF ARTIFICIAL BAIT (NORBAIT™) AS A MEANS OF REDUCING THE INCIDENTAL CATCH OF MACROURUS AND OTHER BYCATCH SPECIES IN HIGH LATITUDE TOOTHFISH FISHERIES

   . Although increased and continuing data collection is an ideal, it must be highlighted that there are both ... line with control mags baited with squid, the vessel’s preferred bait for toothfish and alternating ... that catches of both the target Patagonian toothfish and bycatch of Macrourus whitsoni were reduced ... however was proportionally much greater than that of the toothfish and points to a potentially useful ...

   Meeting Document : WG-FSA-08/52 : Auteur(s): J.M. Fenaughty (New Zealand)

3. Comparative analysis of flow meter and codend volume method for estimating green weight in 'Betanzos'

   method for estimating green weight in 'Betanzos' Approval:  Approved Secretariat Workflow ...

   Meeting Document : WG-EMM-15/58 : Auteur(s): Delegation of Chile

4. 2019 Ross Sea shelf survey results and notification for research in 2020

   fixed-effort survey is included with the agreed catch limit of 45 t. Author(s):  S. Parker and C. Jones ... 2012, with a revised proposal presented in 2017 for five years (2018–2022). The objectives of the ...

   Meeting Document : WG-SAM-2019/03 : Auteur(s): S. Parker and C. Jones

5. Marine debris, entanglements and hydrocarbon soiling at Bird Island and King Edward Point, South Georgia, Signy Island, South Orkneys and Goudier Island, Antarctic Peninsula 2018/19

   gazella) were observed at Bird Island and two at King Edward Point with no marine mammal entanglements ... with seabird colonies at Bird Island, most commonly in association with wandering albatrosses (35 items ... ; 43 %). One incidence of an entangled wandering albatross (Diomedia exulans) was reported; a bird with ... entanglements was below the long-term mean at all sites surveyed. Debris associated with seabird colonies was ...

   Meeting Document : SC-CAMLR-38/BG/28 : Auteur(s): Delegation of the United Kingdom

6. Seabird research at Cape Shirreff, Livingston Island, Antarctica, 2005/06

   which were 51-55mm in length. This is a continuation of a four year trend with increasing proportions of ... during the 2004/05 season. This may indicate that the provisioning rate of chicks by adults may have been ... higher, which would account for this difference. This interpretation may be aided by analysis of foraging ... location and diving behaviour data to be done at a later date. Author(s):  E.S.W. Leung, R.A. Orben and W.Z ...

   Meeting Document : WG-EMM-06/P1 : Auteur(s): E.S.W. Leung, R.A. Orben and W.Z. Trivelpiece (USA)

7. Trends of Antarctic fur seal population at SSSI No. 32, Livingston Island, South Shetlands, Antarctica

   values of the carrying capacity of the environment (K). This might not be correct due to the restrictions ... , and the scattered historical data. Further evidence that the breeding population of A. gazella is ... affected by the El Niño Southern Oscillation phenomena might be given by the intrinsic rate of population ... growth (r) when compared with Southern Oscillation Index (SOI) values. The intrinsic rate of increase of ...

   Meeting Document : WG-EMM-99/16 : Auteur(s): R. Hucke-Gaete, D. Torres, A. Aguayo, J. Acevedo and V. Vallejos (Chile)

8. PRELIMINARY PROPOSAL FOR MARINE SPATIAL PROTECTION AROUND THE SOUTH ORKNEY ISLANDS

   ) would apply; ii) Recommend to the Commission that further intersessional work be undertaken in relation ... but allowing activities such as some scientific research (to be further elaborated by the Commission ... to the additional areas of conservation importance identified in this paper, with a view to ...

   Meeting Document : SC-CAMLR-XXVIII/14 : Auteur(s): Delegation of the United Kingdom

9. INTEGRATING COUNT EFFORT BY SEASONALLY CORRECTING ANIMAL POPULATION ESTIMATES (ICESCAPE): A METHOD FOR ESTIMATING ABUNDANCE AND ITS UNCERTAINTY FROM COUNT DATA USING ADÉLIE PENGUINS AS A CASE STUDY

   Animal Population Estimates) is suite of routines that implements a general abundance estimator ... , Southwell 2004a). Within this resampling framework all measures of uncertainty associated with originally ... this way allows site-specific estimates to be aggregated to achieve region-scale population estimates ... counts). While tailored for Adélie penguins, the method and implementation is sufficiently general to be ...

   Meeting Document : WG-EMM-09/20 : Auteur(s): J. McKinlay, C. Southwell and R. Trebilco (Australia)

10. Determination of a statistically based survey area suitable for hydroacoustic stock assessment of Euphausia superba in the Elephant Island, King George Island, Bransfield Strait area

    the combined total standing stock has a consistent variance to mean biomass relationship that appears ... be shown to exhibit high standing stock (greater than 2 million tons) years, moderate standing stock ... total area (200 m by 200 nm) can be adequately surveyed in 10 to 14 days and covers sufficient area to ... with a predominant origin of individuals from the Weddell Sea. The size of the area and the approach ...

    Meeting Document : SC-CAMLR-VIII/BG/32 : Auteur(s): Delegation of USA

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