Résultats de la recherche

1. Extending the time series of catch-weighted length frequencies

   use of CCAMLR data for D. eleginoides in Subarea 48.3 collected in the seasons 1992/93 and from 1994 ... from 1993/94 because of a mismatch in Flag State which presently occurs between the length and catch ... extended the existing time series of catch-weighted length frequencies for D. eleginoides in Subarea 48.3 ... an overlap of seasons. However there is a systematic difference in the overall number of fish ...

   Meeting Document : WG-FSA-SAM-06/04 : Auteur(s): David Ramm & Lydia Millar

2. Spatial distribution and swarm characteristics of Antarctic krill around the South Shetland Islands

   majority of swarms were also found in the upper 100 m layer. The swarm-based method provides a promising ... as swarms in a patchy fashion and the mean krill densities in December 2013 and February 2018 were ... Abstract:  The spatial distribution and swarm characteristics of Antarctic krill were studied ... using the swarm-based method established in SG-ASAM-17. Acoustic data were collected from the FV Fu Rong ...

   Meeting Document : WG-EMM-18/42 : Auteur(s): X. Yu, X. Wang and X. Zhao

3. Acquiring a ‘base datum of normality’ for a marine ecosystem: the Ross Sea, Antarctica

   researchers who currently investigate open-ocean systems. Herein, the importance of top-down forcing in ... current functioning of the RSShelfE. In spite of this unique evidence for the Antarctic region, much ... pelagic and neritic marine ecosystems is reviewed with concrete evidence given for its existence in the ... remains to be learned about cross-component interactions in the Ross Sea system. Should the RSShelfE be un ...

   Meeting Document : WG-EMM-04/20 : Auteur(s): D. Ainley (USA)

4. Entanglement of Antarctic fur seals (Arctocephalus gazella) by man made debris at Bird Island, South Georgia, during the 2005 winter and 2005/06 breeding season

   reported here. Two entanglements were observed in the winter, a decrease of 60% from the previous year, and ... the lowest number seen since records began in 1990. One of these involved a male pup entangled in ... individual involved. In contrast there was double the number of observed entanglements during summer of 2005 ... made up the majority during the summer, in contrast to previous years. The majority (63%) of summer ...

   Meeting Document : SC-CAMLR-XXV/BG/13 : Auteur(s): Delegation of the United Kingdom

5. Sea ice characterisation of the proposed Ross Sea region Marine Protected Area Special Research Zone

   achieving the objectives of the proposed SRZ in the future. Based on historic satellite-derived sea ice ... in about half of the fishing seasons. Over the past 16 seasons, the SRZ was accessible to fishing in ... still removed from the area in constraining ice years (2010 and 2013). The main influence of sea ice on ... ice within and surrounding the boundaries of the proposed SRZ over the past 16 years, the impact it ...

   Meeting Document : SC-CAMLR-XXXIV/BG/31 : Auteur(s): S. Parker, S. Hoyle, S. Hanchet and R.J.C. Currey (New Zealand)

6. Fish as diet of the blue-eyed shag, Phalacrocorax atriceps bransfieldensis at Half-Moon Island, South Shetland Islands

   Shetland Islands, during January and February 1993, were analyzed to determine the importance of fish in ... means of otoliths found in the casts. The size and weight of the fish were estimated from the otolith ... by number (37.9%), whereas N. coriiceps prevailed in mass (35.8%). With the exception of G ... at Duthoit Point, Nelson Island. However, the relative importance of the fish species in the diet ...

   Meeting Document : WG-CEMP-94/32 : Auteur(s): E.R. Barrera-Oro and R.J. Casaux (Argentina)

7. Age determination of the Antarctic fishes Champsocephalus gunnari and Notothenia rossii from South Georgia

   Abstract:  Foremost in the elucidation of accurate population dynamics parameters in fish is a ... used annual rhythmic deposition in calcified tissues as time marks but, due ts the lack of distinct ... difficult. It is now possible to determine the age of fish through the utilization of daily increments in ... 55 cm in 7 years. The lack of: the large size groups for Notothenia rossii may be indicative of over ...

   Meeting Document : SC-CAMLR-VI/BG/43 : Auteur(s): R. Radtke (USA)

8. Slow recovery of previously depleted demersal fish at the South Shetland Islands, 1983–2010

   period showed no change in modal size or mean length of the fish. We relate these patterns to the fishery ... closed this fishery in 1990. We report changes in size and abundance of the commercially exploited ... low recruitment. The length-frequency distribution of unexploited N. coriiceps throughout the whole ... declined from 1983 to 1991, and an increase in mean size during 1983-84 is consistent with weak cohorts ...

   Meeting Document : WG-FSA-12/P01 : Auteur(s): E.R. Marschoff, E.R. Barrera-Oro, N.S. Alescio and D.G. Ainley

9. Analysis of haul data from the South Georgia krill fishery

   focused, operating in a limited area along the shelf edge on the northern coast of the island. Each day ... abundance indices that are sensitive to changes in biomass. The focused nature of the fishery at South ... Paper Title:  Analysis of haul data from the South Georgia krill fishery Abstract / Description ... :  Data from individual hauls carried out by vessels operating in the South Georgia krill fishery between ... . Table 2: Mean time duration in minutes for different stages of the fishing process. Mean, standard ... that are sensitive to changes in biomass. The focused nature of the fishery at South Georgia suggests ... , understanding changes in the perceived abundance of krill requires an understanding of a wide variety of ... , when, and how a fishery operates. In order to encourage the recording of appropriate data ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 9–30 : Auteur(s): Trathan, P.N., I. Everson, E.J. Murphy and G.B. Parkes

10. Preliminary results of a feeding trial on the blue-eyed shag Phalacrocorax atriceps

    the casts and came from the fish stomachs. Therefore, their importance in the diet of the blue-eyed ... bransfieldensis during 45 days of the austral summer at Jubany Station, King George Island, South Shetland Islands ... . The otoliths identified in pellets were affected by the digestive process and consequently the fish ... gibberifrons and Nototheniops nudifrons all the species were underestimated in number (N. rossii fully). G ...

    Meeting Document : WG-CEMP-94/29 : Auteur(s): R. Casaux, M. Favero, E. Barrera-Oro and P. Silva (Argentina)

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