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1. Review of CCAMLR activities on monitoring marine debris in the Convention Area

   period 1994-1996 at Bird Island and Signy Island, but have declined thereafter. The level of marine ... were reported for the first time from Cape Shirreff. The number of Antarctic Fur seal entanglements at ... entangled at King George Island during the 2002 season, with nylon wrapped around its wing. The number of ... Abstract:  The current status of national surveys on monitoring of marine debris and their impact ...

   Meeting Document : SC-CAMLR-XXIII/BG/11 : Автор(ы): Secretariat

2. Distribution of foraging by female Antarctic fur seals

   Antarctic fur seals breeding at the island of South Georgia. Bathymetric features of the continental shelf ... forage mainly within 100 km of the location at which the offspring was being raised. When this constraint ... was removed at the end of lactation, females foraged to much greater ranges and dispersed to specific ... the spatial impact of breeding female fur seals on krill at South Georgia. This suggested that, in ...

   Meeting Document : WG-EMM-03/38 : Автор(ы): I.L. Boyd, I.J. Staniland and A.R. Martin (United Kingdom)

3. Density and abundance estimates of baleen whales recorded during the 2019 DY098 cruise in the Scotia Sea around South Georgia and the South Sandwich Islands

   on the abundance of krill and so was not optimised for deriving design-based cetacean abundance ... estimates, but may provide a useful means of comparing whale densities and habitat use patterns between the ... species during the survey (226 sightings of a total count of 495 whales) and were widely distributed east ... of 42.5°W in all water depths surveyed, with fin whales the next most commonly sighted species (53 ...

   Meeting Document : WG-EMM-2019/27 : Автор(ы): M. Baines, M. Reichelt, C. Lacey, S. Pinder, S. Fielding, N. Kelly, E. Murphy, P. Trathan and J.A. Jackson

4. Age and growth of the Antarctic skate (Amblyraja georgiana) in the Ross Sea

   respectively) produced estimated ages at maturity of 6–7 years for males and 8–11 years for females. These ... estimates are near the middle to upper end of the range of ages at maturity for skates worldwide. Author(s ... Abstract:  X-rays of vertebral half-centra, and X-rays and transmitted white light examination of ... caudal thorns, were used to estimate the ages of Amblyraja georgiana from the Ross Sea. Caudal thorns ...

   Meeting Document : WG-FSA-04/29 : Автор(ы): M.P. Francis and C. Ó Maolagáin (New Zealand)

5. 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 ... pattern and the inclusion of additional information on size at age. CASAL estimates of stock size, harvest ... rate and recruitment are similar to those of last year’s assessment. B 0 is estimated at around 1,690 ... Abstract:  This paper presents an update of the assessment of toothfish (Dissostichus spp.) in ...

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

6. Influence of data quality and quantity from a multiyear tagging program on an integrated fish stock assessment

   -overlap), numbers of tagged fish, duration of the tagging program, using catch-at-length or catch-at-age ... , fishing, and data collection, this study investigated how the bias and precision of biomass estimates from ... an integrated tag-based assessment are influenced by various aspects of a multiyear tagging program ... , particularly the effects of the size of tagged fish compared with the size of fish in the catch (tag size ...

   Meeting Document : WG-FSA-13/P03 : Автор(ы): P. Ziegler

7. Age distribution of breeding female Antarctic fur seals in relation to changes in population growth rate

   Abstract:  The age distribution of breeding female Antarctic fur seals at Bird Island, South ... Georgia, in 1988 was compared with the age distribution of a sample obtained in 1971-1973. The mean age in ... age-dependent arrival time at the pupping beach in 1988, the mean age was 6.22 (SE = 0.14 years ... ), which was significantly lower than in 1971-1973. Indicators of population size suggested that population ...

   Meeting Document : WG-CEMP-91/21 : Автор(ы): I.L. Boyd, N.J. Lunn, P. Rothery and J.P. Croxall (United Kingdom)

8. Age validation of Patagonian toothfish (Dissostichus eleginoides) from Heard and Macquarie Islands

   number of observed increments after the mark in relation to the time-at-liberty between tagging and ... number of increments was the same as the observed increments for 88% of cases (when the time-at-liberty ... was known at the time of reading and 52% when the time-at-liberty was not known These results indicate ... counting presumed growth increments on the sectioned face of sagittal otoliths. While there is a general ...

   Meeting Document : WG-FSA-05/60 : Автор(ы): K. Krusic-Golub and R. Williams (Australia)

9. Impacts of rising sea temperature on krill increase risks for predators in the Scotia Sea

   minimally realistic ecosystem model to examine how projected effects of ocean warming on the growth of ... Antarctic krill, Euphausia superba, might affect populations of krill and dependent predators (whales ... for predators by curtailing krill fishing at different points in the 21st century. The projected ... effects of ocean warming on krill biomass were strongest in the northern Scotia Sea, with a ≥ 40% decline ...

   Meeting Document : WG-EMM-18/P02 : Автор(ы): E.S. Klein, S.L. Hill, J.T. Hinke, T. Phillips and G.M. Watters

10. Do the males of Dissostichus eleginoides grow faster, or only mature before females?

    maturity at age and not due to the growth rate. Based on this sample of 434 females and 398 males, it is ... Helena and Cisne Verde during August of 1997-and utilized by the WG-FSA-97 to build the maturity ogives ... concluded that the males mature for the first time at 4 years age and females at 10 years age, reaching 100 ... % maturity at 12 years age the males and 21 years age the females. Author(s):  C.A. Moreno (Chile) Title:  Do ...

    Meeting Document : WG-FSA-98/16 Rev. 1 : Автор(ы): C.A. Moreno (Chile)

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