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1. A RE-ANALYSIS AND UPDATE OF THE ANTARCTIC KRILL BIOMASS IN THE SOUTH SHETLAND ISLANDS, THROUGH 2011

   Abstract:  Acoustically based estimates of Antarctic krill (Euphausia superba) biomass, and net ... -based estimates of krill density and recruitment are recalculated for the years 1996 through 2011 ... . The time series of acoustic biomass indicate that krill have varied by more than an order of magnitude ... based data show that 2011 was a year of good recruitment, following two years of low recruitment. Krill ...

   Meeting Document : WG-EMM-11/26 : Автор(ы): A. Cossio, C. Reiss and R. Driscoll (USA)

2. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2004/05

   eight years in Subarea 88.1 and for four years in Subarea 88.2 with a large amount of data collected on ... toothfish and the associated bycatch. The 2005 D. mawsoni catch was the highest on record with a total of ... 3477 t against a catch limit of 3625 t. The catch limit was almost reached in Subarea 88.1 and exceeded ... were rattails, which contributed 12% of the catch, and skates which contributed to about 2% of the ...

   Meeting Document : WG-FSA-05/29 : Автор(ы): S.M. Hanchet, M.L. Stevenson, N.L. Phillips and A. Dunn (New Zealand)

3. Population of macaroni penguins Eudyptes chrysolophus at Marion Island, 1994/95 to 2002/03, with information on breeding and diet

   Abstract:  There is indication that numbers of macaroni penguins Eudyptes chrysolophus at ... subantarctic Marion Island have decreased since the early 1980s. Estimates of the population at the island fell ... large colonies, at Bullard Beach and Kildalkey Bay, account for about 85% of the overall population. At ... mean density of nests decreased. However, error on estimates of abundance at these colonies precludes ...

   Meeting Document : WG-EMM-03/15 : Автор(ы): R.J.M. Crawford, J. Cooper and B.M. Dyer (South Africa)

4. Ideal survey patterns: an example of using a simulated world

   Abstract:  This paper considers a class of survey patterns for a toothfish long lining fishery ... criteria. The shot selection criteria can be either that locations of known good quality are preferentially ... explicit Monte Carlo model and the use of such models to study these issues is considered along with their ... ability to answer such questions as: How well do different survey restrictions capture information of ...

   Meeting Document : WG-FSA-01/75 : Автор(ы): I.R. Ball and A.J. Constable (Australia)

5. Distribution, demography and discard mortality of crabs caught as by-catch in an experimental pot fishery for toothfish in the South Atlantic

   South Georgia of a method of fishing for toothfish (Dissostichus eleginoides) using pots. A significant ... bycatch of lithodid crabs (three species of Paralomis spp.) was encountered. Paralomis spinosissima ... were also noted in depth distribution of the sexes and the size of crabs. Depth, soak time and area ... were found to significantly influence crab catch rates. Very few crabs (3% of P. spinosissima and 7% of ...

   Meeting Document : WG-FSA-01/32 : Автор(ы): M.G. Purves (South Africa), D.J. Agnew, G. Moreno, C. Yau and G. Pilling (United Kingdom)

6. Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Bird Island, South Georgia during the 1999 winter and the 1999/2000 pup rearing season

   Abstract:  Results of the survey of entanglements of Antarctic fur seals at Bird Island, South ... and a 94% decrease on the highest previous total (1992). Four of these animals wereentangled in ... on the 1998 winter. The number of seals observed entangled in the summer was the second lowest ... recorded to date,being 42% lower than in the 1998/99 season. The proportion of adult animals affected was ...

   Meeting Document : SC-CAMLR-XIX/BG/02 : Автор(ы): Delegation of the United Kingdom

7. Proportional recruitment indices of Antarctic krill from Japanese fisheries data in Subareas 48.1, 48.2 and 48.3 during 1980 through 1997

   from logbook data of Japanese commercial krill fisheries during 1980 to 1997. Inter-annual patterns of ... Siegel et al. (1 998)'s values. This may be due to the net selectivity and/or incomplete coverage of ... the distribution of small krill by commercial fisheries. Inter-annual pattern of R1 and R2 in Subarea ... 48.2 showed somewhat similar pattern to Subarea 48.1. However, because of inconsistency of the ...

   Meeting Document : WG-EMM-98/33 : Автор(ы): S. Kawaguchi, T. Ichii and M. Naganobu (Japan)

8. 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 ... mostly based on likelihoods and potentially could insure proper mutual weighting of signals from all ... available sources of information incorporated into the model. The second one, the TISVPA model (Vasilyev ...

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

9. Interannual changes in body fat condition, stomach content mass and distribution of minke whales in Antarctic Areas IV and V

   Abstract:  As an indicator of body fat condition, interannual variability in girth of minke whales ... of minke whales in Antarctic Areas IV (70°-130° E) and V (130° E-170°W) from 1989/90 to 1994/95. Of ... the six years included in the study, two were categorized as years of poor body fat condition, and ... three as years of good condition. Estimated body weight gain during the feeding season in poor years was ...

   Meeting Document : WG-EMM-97/18 : Автор(ы): Ichii, T., Nishiwaki, S., Tamura, T., Fujise, Y., Matsuoka , K.

10. Trophic interactions and population trends of killer whales (Orcinus orca) in the southern Ross Sea

    Abstract:  Foraging events and related trends in numbers of Type-B and-C killer whales (Orcinus ... orca) are reported for the vicinity of Ross Island, Ross Sea, Antarctica, between 2002 and 2010 ... . Updating an earlier report, the frequency of sightings and the number of individuals per sighting of Ross ... coincident with a decrease in the number and size of an important prey: Antarctic toothfish (Dissostichus ...

    Meeting Document : WG-FSA-12/P03 : Автор(ы): D.G. Ainley and G. Ballard

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