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1. Performance metrics to index the spatial coverage of mark-recapture data

   spatial coverage of fishing effort to recapture tagged fish is an important consideration when ... measures of spatial overlap and potential bias in the development of tag-based biomass estimates are an ... important focus topic for WG-SAM (SC-CAMLR-XXXIV, 2015, para 3.83). This paper outlines developments towards ... new biomass-weighted spatial overlap summary statistics for tagging data. The method calculates two ...

   Meeting Document : WG-SAM-16/13 : Autor(es): C. Marsh, A. Dunn and S. Mormede

2. Marine debris and entanglements at Bird Island and King Edward Point, South Georgia, Signy Island, South Orkneys and Goudier Island, Antarctic Peninsula 2017/18

   , at Signy Island, South Orkneys and at Goudier Island, Antarctic Peninsula for the period April 2017 ... to March 2018. Surveys of beached marine debris at Bird Island recorded a total of 371 items during ... austral winter (April to September 2017) and 111 items during summer (October 2017 to March 2018 ... 2017 to 31 March 2018). Twenty-seven items of beached marine debris were recorded at Goudier Island ...

   Meeting Document : SC-CAMLR-XXXVII/BG/21 : Autor(es): C. Waluda

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

   forecasts of years of good or poor recruitment for the toothfish fishery at South Georgia Author(s):  M ... , South Atlantic. Data from 13 demersal trawl surveys conducted over a 20-year period were analysed ... attained after 13-15 months was higher in years of high juvenile abundance and was significantly inversely ... mirrored those previously observed in a range of krill-dependent land-based predators at South Georgia for ...

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

4. Abundance and trends in the breeding population of Adélie penguins (Pygoscelis adeliae) in the western Ross Sea

   -1.8% for the years, 1981-2000 followed by a positive per capita growth rate of 5.5% for the years ... Cape Royds for the years, 1981 to 2012.  Colony growth rates for the southern Ross Sea meta-population ... during their breeding since they did not ground for any period adjacent to those colonies suggesting an ... Abstract:  The Adélie penguin (Pygoscelis adeliae) is an indicator species used by the CCAMLR ...

   Meeting Document : WG-EMM-13/30 : Autor(es): P. O’B. Lyver, M. Barron, K.J. Barton, S. Gordon (New Zealand), D. Ainley, A. Pollard (USA), P.R. Wilson and M.H. Pinkerton (New Zealand)

5. Krill catch distribution in relation to predator colonies, 1987-1991

   48.2 is shown. 74-90% of catches in Subarea 48.1 are taken within 100 km of predator colonies between ... period. The pattern of fishing is very consistent in all years 1988-1991 in Subarea 48.1, but is more ...

   Meeting Document : WG-KRILL-92/18 : Autor(es): Secretariat

6. Analysis of seamount-specific catch and tagging data in the Amundsen Sea, SSRU 88.2H

   liberty for less than 2 years, and that data from the Amundsen Sea slope SSRUs (88.2C–G) are included in ... Abstract:  Catch, effort, and mark-recapture data for Antarctic toothfish from individual seamount ... areas. These metrics were also calculated for SSRU 88.2H as a whole. The analyses indicate that: Fish ... -2 years before fish depart from these seamounts, presumably back to the slope SSRUs. Therefore, it ...

   Meeting Document : WG-SAM-14/27 : Autor(es): S.J. Parker (New Zealand)

7. Monitoring Antarctic toothfish (D. mawsoni) recruitment in the southern Ross Sea

   variability, and recruitment autocorrelation for an Antarctic toothfish stock. The continuation of the time ... the appearance of a second strong year class in 2016. Although the changes in age frequency were ... recruitment variability, are key inputs for integrated assessments of fish stocks. A quantitative longline ... from 2012 to 2015 followed by a sharp increase in 2016 and 2017. The scaled age and length frequency ...

   Meeting Document : WG-FSA-17/57 : Autor(es): S.M. Hanchet, S. Mormede, S. Parker, K. Large, A. Dunn and B. Sharp

8. Using stationary acoustic platforms to assess precision and accuracy of acoustical krill surveys

   data were collected both during day and night for the 2019 Scotia Sea large-scale krill monitoring ... survey. Data from upward-looking, stationary platforms offer unique opportunities for assessing the ... a regular basis deployed stationary platforms in the main area for commercial krill harvesting at ... to provide an estimate of the magnitude of bias introduced by night-time acoustic sampling. We found ...

   Meeting Document : WG-EMM-2019/32 : Autor(es): T. Klevjer, G. Skaret and B.A. Krafft

9. Population assessment of Patagonian toothfish in Subarea 48.4

   addition of catch at age information for 2011, a minor change to the initial parameters of the selection ... Abstract:  This paper presents an update of the assessment of toothfish (Dissostichus spp.) in ... D. eleginoides in the northern region and a simple Petersen biomass estimate derived for D ... pattern and the inclusion of additional information on size at age. CASAL estimates of stock size, harvest ...

   Meeting Document : WG-FSA-12/36 : Autor(es): R. Scott (United Kingdom)

10. Entanglement of Antarctic fur seals Arctocephalus gazella in man-made debris at Bird Island, South Georgia during the 1994 winter and 1994/95 pup-rearing season

    previous year. The proportion of adult animals affected (20%) was slightly lower than 1994. The proportion ... of females involved (40%) was 26% less than the previous year. The incidence of severe injury (30 ... Abstract:  Surveys of Antarctic fur seals entangled in man-made marine debris were carried out for ... 1994 winter. In the 1994/95 summer the number of entangled seals (20) was also the lowest yet recorded ...

    Meeting Document : SC-CAMLR-XIV/BG/08 : Autor(es): Delegation of the United Kingdom

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