Результаты поиска

1. Physical forcing in the southwest Atlantic: ecosystem control

   Abstract:  In the southwest Atlantic sector of the Southern Ocean, temporal variability in the ... temperature at South Georgia shows the presence of high levels of autocorrelation, with periodicity evident in ... anomaly data for the El Niño 4 region in the Pacific show that variability at South Georgia also reflects ... temperature fluctuations in the Pacific, with the Pacific leading South Georgia by approximately 3 years ...

   Meeting Document : WG-EMM-04/34 : Автор(ы): P.N. Trathan, E.J. Murphy, J. Forcada, J.P. Croxall, K. Reid and S.E. Thorpe (United Kingdom)

2. Foraging areas of black-browed and grey-headed albatrosses breeding on Macquarie Island in relation to marine protected areas

   -order predators, there is a paucity of data that can be used to evaluate their efficacy in achieving ... this purpose. 2. We assessed the effectiveness of a network of MPAs around Macquarie Island in the ... Exclusion Zone around Macquarie Island. In contrast, grey-headed albatrosses (T. chrysostoma) spent on only ... 34 % of their time foraging in MPAs. 4. Black-browed and grey-headed albatrosses spent 30 % and 15 ...

   Meeting Document : WG-FSA-04/49 : Автор(ы): A. Terauds, R. Gales, G.B. Baker and R. Alderman (Australia)

3. Distribution, biological characteristic and biomass of icefish from the results of inventory trawling survey carried out by STM-8390 Atlantida in January–March 2002

   -8390 Atlantida in February 2002 in Subarea 48.3 are presented. During this period, the fish were mainly ... foraging. Champsocephalus gunnary 22-28 cm in length at the age of 2-3 predominated on all grounds of the ... Subarea, except the north-eastern part. During the survey, specimens 15 cm in length at the age of 2 ... prevailed in pelagic catches. Peculiarity of Ch. gunnary biology in 2002 consisted in high internal fatness ...

   Meeting Document : WG-FSA-02/79 : Автор(ы): Zh.A. Frolkina and P.S. Gasiukov (Russia)

4. Preliminary assessment of Champsocephalus gunnari on the Heard Island Plateau (Division 58.5.2) based on a survey in May 2002

   Abstract:  A survey of mackerel icefish, Champsocephalus gunnari, was undertaken in Division ... 58.5.2 in the vicinity of Heard Island in May 2002 to provide the information for an assessment of yield ... in the 2002/2003 CCAMLR season. This paper provides a preliminary assessment of yield using the ... assessment methods of CCAMLR and discusses the implications of these results in relation to previous CCAMLR ...

   Meeting Document : WG-FSA-02/47 : Автор(ы): A.J. Constable, R. Williams and T. Lamb (Australia)

5. Seabird mortality on longlines in Australian waters: a case study of progress and policy

   , particularly albatrosses, causing widespread declines in populations across the world. However the extent of ... bycatch in the Southern Oceans is best known for the Australian and New Zealand regions. The 10 year ... evolution of the seabird bycatch issue in the Australian Fishing Zone (AFZ), where the magnitude of the ... birds killed in the tuna longline fishery operating around Australia are albatrosses, including species ...

   Meeting Document : WG-FSA-98/29 : Автор(ы): R. Gales, N. Brothers, T. Reid, D. Pemberton and G.B. Baker (Australia)

6. Population assessment of Patagonian toothfish in Subarea 48.4 – 2011 update

   Abstract:  In this paper we update the assessment of D. eleginoides in the northern half of ... Subarea 48.4 presented in 2010. The CASAL model is improved through the incorporation catch at age data ... , as an alternative to the catch at length data that were the only such data available in 2010. The ... catch at age model generates a yield of 52 tonnes based on CCAMLR decision rules. In 2006 the northern ...

   Meeting Document : WG-FSA-11/38 : Автор(ы): J. Roberts, R. Mitchell and R. Wakeford (United Kingdom)

7. Assessment models for Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRU 88.2E for the years 2002–03 to 2010–11

   model for Antarctic toothfish (Dissostichus mawsoni) in the SSRU 88.2E, using revised catch, catch-at ... resulted in a 30% higher estimate of initial biomass than for the 2009 base case. The main reason for this ... increase was likely to be because of the increase in the proportion of selected trips in the 2011 ... information on stock size, although there were conflicts between information in the recapture data from ...

   Meeting Document : WG-FSA-11/44 : Автор(ы): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)

8. Proposal for an extension to the mark recapture experiment to estimate toothfish population size in Subarea 48.4

   assessment of D. eleginoides stock size in the Northern Area of 48.4 estimates a vulnerable biomass of ... between 1,000 to 2,000 tonnes. 3. The UK proposes to continue the mark-recapture experiment in Subarea ... 48.4 in the 2008/09 fishing season so as to allow for a full assessment of D. eleginoides stock size in ... the Northern in 2009. 4. Additionally, the UK proposes to commence a mark-recapture experiment in the ...

   Meeting Document : WG-FSA-08/46 : Автор(ы): J. Roberts and D. J. Agnew (UK)

9. Results of E.L. Holmberg 1997 fish survey in Subarea 48.3

   Abstract:  The survey comprised 51 bottom trawl hauls taken in subarea 48.3. Of these, one was ... discarded due to net damage. About 80% of the hauls were taken in the shelf of South Georgia Islands (41 ... ) and the remaining in the Shag Rocks area (9); 64% of the hauls were intended as replicates of the ... position of hauls in the previous cruises. Mean densities were obtained considering the spatial aggregation ...

   Meeting Document : WG-FSA-97/47 : Автор(ы): Prenski, B., Calcagno, J., Marschoff, E.R., Gonzalez, B.

10. Temporal variation in Antarctic sea-ice: analysis of a long-term fast-ice record from the South Orkney Islands

    Abstract:  Detection of climate-induced change in marine ecosystems requires a knowledge of the ... variability in Southern Ocean sea-ice dynamics. We present the first analysis of a series of fast-ice duration ... indicate that there has been a long term decline in the duration of sea-ice at the South Orkney Islands in ... the result of a reduction in the duration of fast-ice during the 19405 and 1950s. There was a ...

    Meeting Document : WG-EMM-95/80 : Автор(ы): Symon, C., Murphy, E.J., Priddle, J., Clarke, A.

Страницы