Résultats de la recherche

1. BEACH DEBRIS SURVEY – MAIN BAY, BIRD ISLAND, SOUTH GEORGIA 1995/96

   revealed a total of 710 items, 2% less than the record total of 725 items in 1994/95. However, whereas the ... total amount of debris collected during the winter (April-September) was 40% lower than in 1994/95, the ... continuing high levels of man-made debris and the recent rapid increase in levels during summer, coinciding ... with increases in entanglement of Antarctic fur seals, is of growing concern. Furthermore, despite the ...

   Meeting Document : CCAMLR-XVI/BG/4 : Auteur(s): Delegation of the United Kingdom

2. Climate change and precautionary spatial protection: ice shelves

   Abstract:  Regional climate change is now known to be well established in the Antarctic ... , particularly in the Antarctic Peninsula region. One of the most evident signs of climate change has been ice ... shelf collapse; overall, 87% of the Peninsula’s glaciers have retreated in recent decades. Ice shelf ... to return that were last present during the last interglacial, a warmer period than at present. In ...

   Meeting Document : WS-MPA-11/17 : Auteur(s): P.N. Trathan and S.M. Grant (UK)

3. Climate change and precautionary spatial protection: seasonal sea ice

   Abstract:   Regional climate change is now known to be well established in the Antarctic; however ... respond to climate change is potentially best carried out in regions and with species that have been ... harvesting. If CCAMLR is to embrace the wider implications of climate change in the context of ecosystem ... change, both in the presence of and absence of harvesting. We therefore recommend that locations ...

   Meeting Document : WS-MPA-11/18 : Auteur(s): P.N. Trathan and S.M. Grant (UK)

4. IDENTIFICATION OF DATA QUALITY METRICS FOR TAGGING DATA SELECTION

   quality metrics may be most powerful in distinguishing the trips considered to have good tagging data ... . These include metrics for taxonomic resolution in the observer data, goodness of fit of catch data to ... Benford's Law, and the variation in toothfish catch rates.This reduced set of data quality metrics ... could be helpful in the identification of trips which have similar data quality to the known “good data ...

   Meeting Document : WG-SAM-09/19 : Auteur(s): D.A.J. Middleton and A. Dunn (New Zealand)

5. Pup production and distribution of breeding Antarctic fur seals (Arctocephalus gazella) at South Georgia

   female being ashore at a census and for pregnancy rate (71 % in 1990/91), pup production was estimated as ... 269,000 (95% confidence intervals 188,000- 350,000). The breeding population in 1990/91 was reduced at ... long-term study sites probably because of a short term reduction in food availability. Data from these ... on values from 1983/84 to 1990/91, pup production in 1990/91 would have been 378,000 (S.E. = 19,100 ...

   Meeting Document : WG-CEMP-92/39 : Auteur(s): I.L. Boyd (United Kingdom)

6. Distribution and biology of grey notothen (Lepidonotothen squamifrons) around South Georgia and Shag Rocks (Southern Ocean) CCAMLR Subarea 48.3.

   regulations in 1989 have meant it is now only caught in sub-area 48.3 during research surveys. Data collected ... distribution, size, maturity, and diet. Distribution was patchy with aggregations in specific ‘hotspots’ to the ... dominated by salps/tunicates, but with ontogenetic and depth variations in prey composition. Enhanced ... knowledge of L. squamifrons in this region will be valuable in future research on habitat and foodweb ...

   Meeting Document : WG-FSA-12/34 : Auteur(s): S. Gregory, J. Brown and M. Belchier (United Kingdom)

7. Review of fishery monitoring and forecast procedures

   groups) in CCAMLR fisheries, including catches taken from small-scale research units and other management ... closed 68 fishing areas, and the total catches of Dissostichus in areas closed using the forecast model ... will operate in the future in the same way as it did in the period from which the data are used to make ... will be inaccurate. A range of management options are considered in response to a catch overrun. The ...

   Meeting Document : WG-SAM-13/06 : Auteur(s): Secretariat

8. Stomach contents of the Antarctic toothfish (Dissostichus mawsoni) from the western Ross Sea, Antarctica

   bottom longline in the western Ross Sea during the 2003 summer fishing (from Dec 2002 to Jun 2003) season ... were analysed. Fish sampled were caught in 770-1890 m depths and ranged between 72–212 cm in total ... species was Whitson’s grenadier (Macrourus whitsoni), which dominated the overall diet. In continental ... cephalopods predominated in the diet, while on oceanic seamounts M. whitsoni, violet cod (Antimora rostrata ...

   Meeting Document : WG-FSA-04/31 : Auteur(s): D.W. Stevens (New Zealand)

9. Revision of the fishery–foraging overlap model

   on Ecosystem Monitoring and Management and its Subgroup on Statistics in 1997. The review found that ... the index calculated in that model did not directly measure overlap between penguin foraging demands ... and the krill fishery in waters around the South Shetland Islands and Antarctic Peninsula, but rather ... Secretariat was tasked with the revision of the model, including modifications to the model in terms of both ...

   Meeting Document : WG-EMM-98/05 : Auteur(s): Secretariat

10. Beach debris survey - Main Bay, Bird Island, South Georgia 1994/95

    increase in overall debris levels (725 items reported in 1994/95 compared with 225 items in 1993/94 ... proportion in 1993/94). Of the 67% of debris occurring during the winter, 43 % occurred during July. Nylon ... line, comprising 80% of debris, was mainly identical to material used in the long-line fishery, as ...

    Meeting Document : CCAMLR-XV/BG/04 : Auteur(s): Delegation of the United Kingdom

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