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  1. Results of the mark–recapture experiment in Subarea 48.3, 2005

    from 2004 and 2005 were very similar to each other, whichever selectivity was used: about 62,000 t of ... vulnerable biomass using the Kirkwood shallow selectivity; 52-55,000 t using the CASAL derived selectivity ... functions; and 41,000 t using the tag-derived selectivity function. Current vulnerable biomass (BV2005) was ... sustainable yield, made adjusting mean recruitment in GYM so that BV2005 corresponded to the current estimates ...

    Meeting Document : WG-FSA-05/17 : Author(s): D.J. Agnew and A. Payne (United Kingdom)

  2. WG-SAM-16

    . in Subarea 48.6 being jointly undertaken by Japan and South Africa in the years 2013–2016 S. Somhlaba ...

    Meeting

  3. Measurements of fish school velocities with an acoustic Doppler current profiler

    results suggests that the ADCP can be a useful tool for observing fish behavior in certain situations ... ), it was required that the four ADCP beams simultaneously insonified a fish school, in the same depth ... scattering layers and possibly vessel avoidance reaction. The method can be enhanced by utilizing the radial ... :  Measurements of fish school velocities with an acoustic Doppler current profiler Approval:  Approved ...

    Meeting Document : WG-EMM-96/41 : Author(s): Demer, D.A.

  4. Towards the development of an assessment of stock abundance for Subarea 88.2 SSRUs 88.2C–G – a discussion paper

    grounds based on historic CPUE and a maximum local exploitation rate. It should be noted that the catch ... recapture in this region we further recommend that the tagging rate in this area be increased to 3 tags per ... 2 fish have been recaptured. It is likely that the lack of tag recaptures in this region has been ... caused primarily by the poor spatial overlap of released tagged fish with subsequent fishing effort. By ...

    Meeting Document : WG-SAM-14/28 : Author(s): S.M. Hanchet and S.J. Parker (New Zealand)

  5. A compilation of parameters for ecosystem dynamics models of the Scotia Sea – Antarctic Peninsula region

    and Butterworth (2001) reported the number of pods, by species, sighted on surveys of larger strata that also ... 069 (9 831–42 274) and the Branch and Butterworth (2001) data estimating 34 145 (13 163–52 380 ... . Butterworth. 2001. Estimates of abundance south of 60°S for cetacean spe- cies sighted frequently on the 1978 ... . The density of whales in each stratum listed in Branch and Butterworth (2001) was calculated as the product ... compiles parameters for use in the ecosystem dynamic models that are needed to assess these methods. These ... species that feed on krill in this region. Maximum krill transport rates are also derived from the OCCAM ... global ocean circulation model. This parameter set, like most others, is associated with considerable ... uncertainty, which must be taken into account when it is used. The sources, assumptions and calculations at ...

    Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 1–25 : Author(s): Hill, S.L., K. Reid, S.E. Thorpe, J. Hinke and G.M. Watters

  6. Developing a penguin tracking database to help determine their most important foraging areas

    Global Procellariiform Tracking Database) will allow spatial analyses to be undertaken that will help ... Plus Fund) to build an integrated database that would facilitate the analysis of penguin tracking data ... . The database will have a web-based user interface that will allow data holders to submit data and ... attach a range of access levels; access may be granted only to the data holder, to a wider group, or to a ...

    Meeting Document : WG-EMM-13/18 : Author(s): M. Hindell (SCAR), B. Lascelles (BirdLife) and P. Trathan (United Kingdom)

  7. Acoustic estimates of krill biomass in the Elephant Island area: 1981-1993

    1981-1993 (with the exception of 1982 and 1986) are presented. Estimates for 1981-1991 are based on ... range from 81 xl03 t (March/April 1985) to 4,880 xl03 t (January 1993) and areal biomass densities range ... xl03 t and 52.8 g/m2. Author(s):  D.A. Demer and R.P. Hewitt (USA) Title:  Acoustic estimates of krill ...

    Meeting Document : WG-KRILL-93/49 : Author(s): D.A. Demer and R.P. Hewitt (USA)

  8. A simulation study of the method of refining the natural mortality coefficient with Champsocephalus gunnari in Subarea 48.3 used as an example

    Abstract:  The method of refining the natural mortality coefficient is based on the notion that ... mortality as defined by the VPA and fishing effort must be equal to zero if the natural mortality ... shown that the proposed method facilitates such a refinement. When a mistake is made in the choice of ... natural mortality coefficient, the estimate of the free component in the equation will be other than zero ...

    Meeting Document : WG-FSA-91/25 : Author(s): P.S. Gasiukov and R.S. Dorovskikh (USSR)

  9. Draft updated data collection plan for the Ross Sea toothfish fishery

    inform management decisions made to achieve specific goals. Any data collection plan should be drawn from ... Article II of CCAMLR can be summarised as: the target fished population is above a level which ensures ... ecosystem which are not potentially reversible over two or three decades, with the aim of making possible ... data collection plan. This paper provides context with the proposed medium term research objectives ...

    Meeting Document : WG-FSA-15/40 : Author(s): S.M. Hanchet, S.J. Parker and S. Mormede (New Zealand)

  10. FURTHER DEVELOPMENTS OF A SIMULATION MODEL, ‘PATCH’, FOR EVALUATING MANAGEMENT STRATEGIES TO CONSERVE BENTHIC HABITATS (VULNERABLE MARINE ECOSYSTEMS) WHICH ARE POTENTIALLY VULNERABLE TO IMPACTS FROM BOTTOM FISHERIES

    the most cost-effective way that fishers might be able to collectively enact this resolution? The UNGA ... ”, a categorisation fraught with difficulty. Instead, it means that habitats for which this would not ... requirement can be translated into a simple operational objective: Maintain the quality of habitats above the ... level that can naturally restore the original structure and function within 20 years. It does not ...

    Meeting Document : WG-FSA-09/42 : Author(s): A.J. Constable (Australia)

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