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  1. A simple approach for calculating the potential yield of krill from biomass survey results

    values of the ages at maturity and first-capture. Seasonal effects seem to be of lesser importance ... calculations is that the probability that the kri11 spawning biomass drops below 20% of its average pre ... -exploitation level over a 20 year period of harvesting should not exceed l0%. The value of λ depends strongly ... on the value of M (natural mortality) and σR (recruitment variability), and also on the relative ...

    Meeting Document : WG-KRILL-91/24 : Author(s): D.S. Butterworth (South Africa) and M. Basson (United Kingdom)

  2. WG-FSA-06

    Review of the use of survey data and length-at-age models in the assessment of Dissostichus eleginoides ... documents Doc Number Title WG-FSA-06/06 Report of the WG-FSA Subgroup on Assessment Methods(Walvis Bay ... Meeting of the Working Group on Fish Stock Assessment (WG FSA) WG-FSA-06/10 Species composition of fish ... from Antarctic toothfish Dissostichus mawsoni stomachs of the Ross Sea A.V. Balushkin (Russia) and V.G ...

    Meeting

  3. Distribution and biological characteristics of two toothfish species of genus Dissostichus (family Nototheniidae) off Bouvet Island

    crossover point at depth of 1300 m. For both species the size and weight compositions were studied; indices ... ) toothfish, were registered during the fishery on Dissosyichus spp. on the shelf edge and slope of Bouvet ... surrounding the island. The vertical distribution of two species was differentiated distinctly, with the ... of stomach fullness and qualitative diet composition as well as maturation stages of gonads and their ...

    Meeting Document : WG-FSA-11/17 : Author(s): A.F. Petrov (Russia)

  4. Krill biomass in Area 48 and Area 58: recalculations of FIBEX data

    the precautionary catch limits, SC-CAMLR has requested that the FIBEX data should be re-analysed using the most ... the two tasks outlined above. 2.2.1 Task (1) - Recalculation ofFIBEX Results Phase 1: Krill densities ... 5 and 6 in Appendix II of this paper. 3. RESULTS AND DISCUSSION 3.1 Task (1) - Recalculation ofFIBEX Results ... values (e.g., Anon. 1986) and used byWG-Krill in the conversion ofFIBEX biomass estimates to absolute ... Paper Title:  Krill biomass in Area 48 and Area 58: recalculations of FIBEX data Abstract ... estimates of mean density and biomass for the Indian Ocean sector and the West Atlantic sector as well as ... estimates were calculated using the target strength relationships used at the original FIBEX acoustic ... workshop. Estimates for the different areas were also calculated using the target strength relationships of ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 157–181 : Author(s): Trathan, P.N., D.J. Agnew, D.G.M. Miller, J.L. Watkins, I. Everson, M.R. Thorley, E. Murphy, A.W.A. Murray and C. Goss

  5. WG-FSA-07

    -07/43 Preliminary results of testing of PIT-D device at deepwater longline fishery of Antarctic ... Secretariat WG-FSA-07/10 Rev. 5 Estimation of IUU catches of toothfish inside the Convention Area during the ... Species profile of mackerel icefish (Champsocephalus gunnari) K.-H. Kock (Germany) and I. Everson (UK) WG ... -FSA-07/13 Autoliners and seabird by-catch: do line setters increase the sink rate of integrated weight ...

    Meeting

  6. SOME POSSIBLE MODIFICATIONS TO CEMP STANDARD METHODS A3A, A3B AND A9 TO ALLOW GREATER FLEXIBILITY IN THE COLLECTION AND INTERPRETATION OF BREEDING POPULATION COUNT DATA

    Abstract:  At WG-EMM-09 the Working Group noted that the photographic method used in WG-EMM-09/38 ... could be incorporated as a modification of CEMP Standard Method A3 (penguin breeding population size ... ). This paper reviews aspects of Methods A3a, A3b and related A9 (breeding chronology) in the most recent ... version of the CEMP Standard Methods that are relevant to this proposal, outlines some difficulties in the ...

    Meeting Document : WG-EMM-11/38 : Author(s): C. Southwell (Australia)

  7. A proposal to revise the limitation of Macrourus by-catch in new and exploratory fisheries

    Abstract:  A new move-on rule was introduced in Conservation Measure 33-03 at CCAMLR-XXIV ... regarding the by-catch limit of new and exploratory fisheries. This move-on rule requires fishing to cease ... when the catch of Macrourus spp. by a single vessel exceeds 16% of its Dissostichus spp. catch in any ... two 10-day periods in a single SSRU (CM 33-03 paragraph 5). The interval of the “10-day period” was ...

    Meeting Document : SC-CAMLR-XXVI/08 : Author(s): Delegation of Japan

  8. An introduction to the International Association of Antarctica Tour Operators (IAATO)

    observer status at the thirty-seventh meetings of the Commission and Scientific Committee. IAATO is a ... Abstract:  The International Association of Antarctica Tour Operators (IAATO) has been granted ... membership organization founded in 1991 to advocate and promote the practice of safe, environmentally ... majority of all private sector tourism to the Antarctic and Southern Ocean. This paper is a brief ...

    Meeting Document : CCAMLR-XXXVII/BG/27 : Author(s): Submitted by IAATO

  9. Proposal to continue the time series of CCAMLR-sponsored research surveys to monitor abundance of subadult Antarctic toothfish in the southern Ross Sea in 2015

    for the 2014/15 fishing year is requested for the survey. Author(s):  S.M. Hanchet, S.J. Parker and S. Mormede ... fishing year is requested for the survey. ...

    Meeting Document : WG-SAM-14/25 : Author(s): S.M. Hanchet, S.J. Parker and S. Mormede (New Zealand)

  10. By-catch of juvenile Champsocephalus gunnari in krill fishery on the shelf of South Georgia Island

    depth with a maximum density observed at depth between 100 and 200 m. High catches of C. gunnari ... Abstract:  AtlantNIRO had conducted in 1982-1990 a series of juvenile fish trawl surveys of ... abundant species around South Georgia Is. Results of these survey were summarised and compared with ... published data. Juveniles of Champsocephalus gunnari were found to be distributed from the surface to 500 m ...

    Meeting Document : WG-FSA-92/06 : Author(s): G.A. Frolkina, V.I. Latogursky, V.A. Sushin (Russian Federation)

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