Resultados de la búsqueda

1. Statistical problems in krill stock hydroacoustic assessments

   the methods applied to establish biomass in a survey area and the second is the improvement in ... accuracy of target-strength measurements. In the case of statistical methods, there are no clear guidelines ... survey methods assume the population is fixed in space, relative to the sampling interval. There remain ... several unsatisfied needs for improvements in sampling design and tests for systematic trends in survey ...

   Meeting Document : SC-CAMLR-VII/BG/22 : Autor(es): United States of America

2. Research plan for the 2017/18 toothfish fishery in Division 58.4.4b by Japan and France

   tags released in the last three years as effective for the biomass estimation. The estimated median ... Abstract:  Japan and France made the next season’s (2017/18) research plan in research blocks ... 58.4.4b_1 and 58.4.4b_2 using the latest CCAMLR C2 and Observer data. The estimated median stock size in ... block 58.4.4b_1 and 58.4.4b_2 was 855.39 and 1120.40, tonnes respectively, in Chapman method considering ...

   Meeting Document : WG-SAM-17/02 Rev. 1 : Autor(es): Delegations of Japan and France

3. TOWARDS THE BALANCED STOCK ASSESSMENT OF ANTARCTIC TOOTHFISH IN THE ROSS SEA

   Abstract:  Last two years two different approaches were used for stock assessment of Antarctic ... toothfish in the Ross Sea. One of them, the CASAL model, (Dunn & Hanchet, 2007; Bull et al., 2007) is ... ) data. Besides that, some sorts of data, e.g. tagging data, are used in these models in quite different ... information was also quite different: while in TISVPA all sources of data gave rather coherent signals about ...

   Meeting Document : WG-SAM-08/08 : Autor(es): D. Vasilyev and K. Shust (Russia)

4. An assessment of the impact of krill fishery on penguins in the South Shetlands

   season (December-March) in the South Shetland Islands (Subarea 48.1) was assessed based on available ... information on fishery, penguins and krill biomass. The catch is very low in December followed by roughly ... intensity to the shelf and slope of Livingston or Elephant Island. In contrast, the food consumption by ... penguins is estimated to be large in the shelf and slope near King George Island (11,680 t/10-day), whereas ...

   Meeting Document : WG-KRILL-93/07 : Autor(es): T. Ichii, M. Naganobu and T. Ogishima (Japan)

5. Recent trends in numbers of four species of penguins at the Prince Edward Islands

   and southern rockhopper penguin E. chrysocome. In December 2008 it was estimated that some 65 000 ... pairs of king penguins were incubating eggs at Marion Island, the larger of the two islands in the group ... in numbers of king penguin chicks that survived to the end of the winter period, but there was ... considerable fluctuation in chick production in the 1990s. It was roughly estimated that on average 88% of king ...

   Meeting Document : WG-EMM-10/P01 : Autor(es): R.J.M. Crawford, P.A. Whittington, L. Upfold, P.G. Ryan, S.L. Petersen, B.M. Dyer and J. Cooper

6. Seamount-specific biomass estimates from SSRU 88.2H in the Amundsen Sea derived from mark-recapture data

   on almost every seamount in every year and usually in proportion to the level of tagging on the ... seamount in the previous year. Trends in local biomass estimates for individual seamounts and SSRU 88.2H ... Abstract:  Mark-recapture data for Antarctic toothfish from individual seamount features in SSRU ... complex, and residence time on particular seamounts declines rapidly over 1–4 years. Fishing has occurred ...

   Meeting Document : WG-FSA-14/58 : Autor(es): S.J. Parker and S. Mormede (New Zealand)

7. Analysis of the krill fishery in Subarea 48.1 considering trawl fishing method used (2010–2016)

   Abstract:  An analysis of spatio-temporal variability of CPUE indices in the krill fishery in ... subarea 48.1 by years and small-scale management units, including inter-annual, monthly and inter-vessel ... in the Bransfield strait, where the main fishery in Subarea 48.1 is concentrated  The possibility of ... krill biomass in SSMU during the fishing season is discussed. Variability of monthly average ...

   Meeting Document : WG-EMM-17/27 : Autor(es): S. Kasatkina S. and L. Boronina

8. Current work towards estimating krill consumption by flying seabirds in CCAMLR Divisions 58.4.1 and 58.4.2

   parameter input values. We have conducted tracking work on four species in two regions over two years to ... Abstract:  We describe current work to obtain krill consumption estimates for flying seabirds in ... estimating krill consumption by flying seabirds in CCAMLR Divisions 58.4.1 and 58.4.2 Approval:  Approved ...

   Meeting Document : WG-EMM-16/67 : Autor(es): L. Emmerson and C. Southwell

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

   34 % of their time foraging in MPAs. 4. Black-browed and grey-headed albatrosses spent 30 % and 15 ... -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 ...

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

10. 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 : Autor(es): J. Roberts and D. J. Agnew (UK)

Páginas