Résultats de la recherche

1. Dietary segregation of krill-eating South Georgia seabirds

   Abstract:  The diets of six of the main seabird species (two petrels, two albatrosses, two ... period in 1986. For five species, Antarctic krill Euphausia superba was the main food (39-98% by mass ... ranges. selectivity by predators, or differences in escape responses of krill. For the krill-eating ... performance was indicative of a year of good availability of krill around South Georgia. In such circumstances ...

   Meeting Document : WG-EMM-97/15 : Auteur(s): Prince, P.A., Croxall, J.P., Reid, K.

2. RECRUITMENT AND BODY SIZE IN RELATION TO TEMPERATURE IN JUVENILE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) AT SOUTH GEORGIA

   , South Atlantic. Data from 13 demersal trawl surveys conducted over a 20-year period were analysed ... forecasts of years of good or poor recruitment for the toothfish fishery at South Georgia Author(s):  M ... mirrored those previously observed in a range of krill-dependent land-based predators at South Georgia for ... understanding of recruitment variability holds great interest for fisheries managers and could be used refine ...

   Meeting Document : WG-FSA-08/P02 : Auteur(s): M. Belchier and M.A. Collins

3. Diet and prey consumption of Antarctic petrels Thalassoica antarctica at Svarthamaren, Dronning Maud Land and at sea outside the colony

   Abstract:  The diet of the Antarctic petrel Thalassoica antarctica was studied during two years at ... Svarthamaren, an inland colony situated in Dronning Maud Land, Antarctica and in the pack-ice outside ... found in other diet studies. Estimates of food consumption for birds breeding at Svarthamaren (c ...

   Meeting Document : WG-EMM-97/58 : Auteur(s): Røv, N., Lorentsen, S., Klages, N.

4. Preliminary tag-recapture based population assessment of Antarctic toothfish in Subarea 48.4

   tagging returns to be 982 tonnes in 2018. Applying the CCAMLR agreed precautionary assumption of average ... biomass across the time series and harvest rate of γ = 0.038, implies a 2018/19 yield of 37 tonnes ... considered to provide an estimate of the local biomass. Author(s):  T. Earl and A. Riley Title:  Preliminary ... Secretariat Workflow Status:  Content Approved Document Release Consent:  No Delegation responsibility for ...

   Meeting Document : WG-FSA-18/26 : Auteur(s): T. Earl and A. Riley

5. Acoustic data analysis and models of krill spatial distribution

   used in three descriptors of krill spatial aggregation: power spectra for krill biomass fluctuations in ... biomass estimate. The wavenumber spectrum resembles a white noise at scales of 2-20 km, although at scales ... not vary significantly over most distances between points except for the distances smaller than 1 km ... . The computed frequency distribution of krill biomass is bimodal and appears to be the mixture of two ...

   Meeting Document : SC-CAMLR-VII/BG/25 : Auteur(s): United States of America

6. Linking population trends of Antarctic shag (Phalacrocorax bransfieldensis) and fish at Nelson Island, South Shetland Islands (Antarctica)

   the 1990s up to the mid 2000s over an overall monitoring period of over two decades. It addresses ...  of this area, where an intensive commercial fishery for shag prey once operated. The analysis also ... in the number of breeding pairs of Antarctic shag Phalacrocorax bransfieldensis  in two colonies on ... breeding output of shags from the Danco Coast, western Antarctic Peninsula, an area where no commercial ...

   Meeting Document : WG-EMM-16/P09 : Auteur(s): R. Casaux and E. Barrera-Oro

7. THE RISKS OF NOT DECIDING TO ALLOCATE THE PRECAUTIONARY KRILL CATCH LIMIT AMONG SSMUS AND ALLOWING UNCONTROLLED EXPANSION OF THE KRILL FISHERY UP TO THE TRIGGER LEVEL

   might be incurred by not deciding on such an allocation (i.e., a risk assessment of status quo ... risks associated with three options for a Stage-1 allocation of the precautionary krill catch limit ... level, that is less than the current trigger level, while continuing work to evaluate options for a ... allocation has met the "burden of proof" that would be required for decision making. Author(s ...

   Meeting Document : WG-EMM-09/12 : Auteur(s): G.M. Watters (USA), S. Hill (United Kingdom), J.T. Hinke (USA) and P. Trathan (United Kingdom)

8. Trade data analysis – Annual report of global toothfish trade data

   sources for the trade of toothfish products for the 2018 calendar year. The analysis has identified that ... in 2018 toothfish was most commonly traded as an unprocessed frozen product which could be in various ... forms with mean unit values of 24.03 US$/kg for imports and 23.40 US$/kg for exports. The data ... identified the largest importer was the United States of America (USA), accounting for 36.50% of the global ...

   Meeting Document : CCAMLR-38/BG/09 : Auteur(s): CCAMLR Secretariat

9. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2014–15

   fishery were stable in the North up until 2014, then showed a decrease in mode, particularly for males (to ... similar to that in the early period of the fishery – the reason for this is unclear. There has been a ... readings and it is recommended that additional otolith readings for this area are given a high priority ... Abstract:  This report summarises the timing, depth, and location of fishing effort together with ...

   Meeting Document : WG-FSA-15/36 : Auteur(s): K. Large, S.M. Hanchet and S. Mormede (New Zealand)

10. Relationships between the distribution of whales and Antarctic krill Euphausia superba at South Georgia

    Abstract:  The distribution of whales and krill in two survey boxes north of South Georgia was ... southern right whale (Eubalaena glacialis) and humpback whale (Megaptera novaeangliae) the two most ... krill and whale distribution, particularly at smaller scales, may require information on krill swarm ...

    Meeting Document : WG-EMM-99/30 : Auteur(s): K. Reid, A.S. Brierley (United Kingdom) and G.A. Nevitt (USA)

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