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1. Estimating toothfish biomass in Subarea 48.3 using local depletions

   CPUE over the four years and multiplying by the total fishable area in Subarea 48.3 we arrived at an ... out some possibility of potential as an alternative assessment method for toothfish. Author(s ... means of estimating toothfish density at South Georgia. Over the four years 2000-2003, we found 25 areas ... of 12’ by 12’ where there had been forty or more hauls in any particular year. There were 62 ...

   Meeting Document : WG-FSA-SAM-04/18 : Autor(es): Pearce, J., Agnew, D.

2. REPORT OF THE UK GROUNDFISH SURVEY AT SOUTH GEORGIA (CCAMLR SUB-AREA 48.3) IN JANUARY 2009

   Abstract:  In January 2009 the UK undertook a bottom trawl survey of CCAMLR Sub-area 48.3 on the ... FV Sil. A total of 71 random and representative 30 min tows were made giving good geographic coverage ... , updated sea-floor areas and adjusting for the low headline height of the trawl (see CCAMLR WG-FSA (2003 ... for other non-target species. There was evidence that the large cohort of juvenile Patagonian ...

   Meeting Document : WG-FSA-09/09 : Autor(es): M. Belchier, R.E. Mitchell, M.A. Collins, L. Kenny, M. Taylor, J. Nelson and L. Featherstone (United Kingdom)

3. Moving towards a new era in ecosystem-based krill fishery management

   requirements of Article II of the Convention, ASOC recommends that: SC-CAMLR endorses the work plan proposed by ... ) 51-07. SC-CAMLR agrees on the need to conduct subarea or finer scale stock assessments on a regular ... standardised survey methods prior to conducting any future surveys. SC-CAMLR provides advice on changes to ... greenweight across vessels; 2) ensuring guides for finfish larvae and ice krill are provided to SISO observers ...

   Meeting Document : SC-CAMLR-38/BG/22 : Autor(es): Submitted by ASOC

4. Assessment of the Patagonian Toothfish (D. eleginoides) in Subarea 48.3

   35 years with 50% probability, with less than 1% probability declining below 20% of B0 and would ... the current status of the stock is at 52% of B0. Spawning biomass has been increasing in recent years ... . The 2008 year class is estimated to be well above average. Provisional projections indicate that a ...

   Meeting Document : WG-FSA-15/59 : Autor(es): T. Earl, M. Soeffker and C. Darby (United Kingdom)

5. Modelling the dynamics of krill populations in the Antarctic Peninsula region

   data for the first age class produced an instantaneous mortality rate estimate of approximately 0.6 ... observed density changes. The need for caution in interpreting the model results was emphasized by an ... the population in the Antarctic Peninsula region. Two approaches have been explored: the first uses ... develop a model of the long-term dynamics. Data on the recruitment of the first and second age groups were ...

   Meeting Document : WG-EMM-99/56 : Autor(es): E.J. Murphy (United Kingdom), A. Constable (Australia) and D. Agnew (United Kingdom)

6. Detection of systematic change in Adélie penguin foraging trip duration: consequences of high inter-annual variability and usefulness of ice cover as a covariate

   temporal change in CEMP Parameter A5 (penguin foraging trip duration). Two different types of systematic ... three years or alternatively, with equal power, a 3.75% annual increase in trip duration after 12 years ... enhanced detection of change for birds monitored in the guard stage of chick rearing. However, caution must ... Abstract:  Power analyses were carried out using a 12 year data set from the Béchervaise Island ...

   Meeting Document : WG-EMM-05/22 : Autor(es): J. Clarke, C. Southwell and L.M. Emmerson (Australia)

7. Bycatch of fishes captured by the krill fishing vessel Chiyo Maru No. 2 in Statistical Area 58 (January to March 1995)

   ). In numbers, an average of about 20 fish were caught per ton of krill, and an average of about 23 fish ... krill, and an average of about 2 kg of fish were caught per hour of towing. Confidence intervals for ... noted that the results for reporting fish bycatch were not presented in CCAMLR's standard format ... were caught per hour of towing. In weight, an average of about 1.5 kg of fish were caught per ton of ...

   Meeting Document : WG-FSA-95/40 Rev. 1 : Autor(es): Watters, G.

8. Biology, distribution and abundance of Antarctic krill (Euphausia superba) and by-catch

   'S to 61°13'S and long.30°02'E to 40°05'E. These were analysed onboard FORV Sagar ... Sampada for the study of biology, distribution and abundance. The samples were collected for a period of ... trawl. The length frequency analysis indicated a bimodel distribution with 19-20 mm and 53-54mm as the ...

   Meeting Document : WG-EMM-98/37 : Autor(es): A. Anrose, Z. Klusek, M.K.R. Nair and M. R. Bhoopendranath (India)

9. Uncertainty in echosounder calibrations

   sphere TS versus time. Over two 15 hour periods, the measured TS ranged 1.2 dB for a 23.0 mm Cu sphere ... and 1.4 dB for a 38.1 mm WC sphere. Vector admittance measurements were made of an ES120 transducer ... Abstract:  Calibration of echo sounders for fish stock assessment are commonly performed using the ... deviations of 0.1, 0.3, and 0.2 dB, respectively. To characterize the precision of the method for a fixed ...

   Meeting Document : WG-EMM-96/40 : Autor(es): Soule, M.A., Demer, D.A.

10. CCAMLR research and exploratory fishing: commercial fishing disguised as scientific research

    exploratory fishing activities are not increasing our understanding of the fished species and its impact on ... Review and several Scientific Committee working groups have raised concerns regarding the current ... reporting requirements. Establish clear standardised requirements for research, new, and exploratory fishing ... Status:  Content Approved Document Release Consent:  Yes Delegation responsibility for releasing ...

    Meeting Document : SC-CAMLR-XXXVII/BG/28 : Autor(es): Submitted by ASOC

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