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  1. Growth models for D. eleginoides for the Heard Island plateau region (Division 58.5.2) calibrated from otolith-based length at age data and validated using mark-recapture data

    with growth increments obtained from mark-recapture data for a large sample of recaptured fish. Mean annual ... -1 while that predicted from the 2-segment linear model for lengths above 557 mm was 37.6 mm yr-1. Mean ... with growth increments obtained from mark-recapture data for a large sample of recaptured fish. Mean annual ... -1 while that predicted from the 2-segment linear model for lengths above 557 mm was 37.6 mm yr-1. Mean ...

    Meeting Document : WG-FSA-05/64 Rev. 1 : Author(s): S.G. Candy, T. Lamb, A.J. Constable and R. Williams (Australia)

  2. Uncertainty in echosounder calibrations

    Abstract:  Calibration of echo sounders for fish stock assessment are commonly performed using the ... standard sphere method (Johannesson and Mitson, 1983; Simmonds et al., 1984). To determine the accuracy of ... the method, direct measurements of target strength (TS) were made of three standard spheres (Copper ... (Cu)- 23.0 mm and tungsten carbide (WC)- 33.0 mm and 38.1 mm). At the best case range of 5 m, the TS ...

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

  3. Effects of orientation on acoustic scattering from Antarctic krill at 120 kHz

    . Use of these scattering patterns with orientation data from shipboard studies of E. superba gave mean ... patterns with orientation data from shipboard studies of E. superba gave mean scattering levels ...

    Meeting Document : WG-EMM-99/42 : Author(s): D.E. McGehee (USA), R.L. O’Driscoll (New Zealand) and L.V. Martin Traykovski (USA)

  4. An exploratory analysis of skate speciation using DNA identification techniques

    region, were sequenced in specimens of Antarctic skates from the Ross Sea (Pacific Ocean sector), the ... Abstract:  Two regions of the mitochondrial DNA, part of the cytochrome b gene and the control ... Islands (Atlantic Ocean sector). Based on the DNA results, the species of Bathyraja referred to as B ... . eatonii in the Ross Sea appears to be a discrete sister species to B. eatonii from the Atlantic sector. In ...

    Meeting Document : WG-FSA-04/27 : Author(s): P.J. Smith and S.M. McVeagh (New Zealand)

  5. Seal mitigation measures on trawl vessels fishing for krill in CCAMLR Subarea 48.3.

    ) in Siena, Italy, the UK reported on the by-catch of fur seals (Arctocephalus gazella) in the krill ... fur seal deaths in the fishery. WG-EMM requested that the UK provide further details of the methods ... Abstract:  At the 2004 meeting of the Working Group on Ecosystem Monitoring and Management (WG-EMM ... entanglements on krill vessels fishing around South Georgia in the 2004 fishing season. The measures implemented ...

    Meeting Document : WG-FSA-05/P1 : Author(s): Charman, C., Clark, J., Hooper, J., Agnew, D.

  6. Krill conversion factors

    with those currently in use although the differences are such that use of the traditional factors may ... practice in the fishery, if it is then the use of any of the conversion factors will result in a serious ... of different krill products are examined and a range of values produced. These are broadly in line ... introduce large errors into the estimation of removals. It is uncertain whether discarding is a common ...

    Meeting Document : WG-EMM-01/39 : Author(s): I. Everson (United Kingdom)

  7. Domain 1 MPA designation process: data sharing and future enhanced work

    Abstract:  During the last years, a large amount of information was gathered and shared in one ... unique project for the development of a representative system of MPAs in Domain 1. This process ... became involved in the development of the MPA proposal and contribute to the state of knowledge. This ... integrates, compiles, analyses and exposes a large amount of information, not only contributing to the best ...

    Meeting Document : WG-EMM-16/73 : Author(s): M. Santos, A. Capurro and C.A. Cárdenas

  8. SEABIRD: DRAFT USER MANUAL V1.00-2008/06/18

    that allows a great deal of flexibility in specifying the population dynamics, parameter estimation ... to set up the input files, descriptions of the population dynamics and estimation methods, and how to ... generate outputs. It also contains a brief overview of the technical specifications of the software, and ... examples of models using SeaBird. SeaBird is designed for flexibility. It allows the user to structure the ...

    Meeting Document : WG-SAM-08/P03 : Author(s): D. Fu and R.I.C.C. Francis (New Zealand)

  9. Some changes observed in Antarctic seabird distribution and behaviour

    avoidance by BA in the area of the cold Weddell Sea waters penetrating North along the archipelago. Author(s ... - Kaliningrad from 1999 November to 2000 April are analyzed. Significant shift of the southern boundary range of ... fact may be explained by abundance fluctuation or shift of the Southern Polar Front to the South ... archipelago very low abundance area of blackbrowed albatross is revealed. The phenomenon may be explained by ...

    Meeting Document : WG-EMM-00/36 : Author(s): F. Litvinov (Russia)

  10. ADÉLIE PENGUIN SURVIVAL: AGE STRUCTURE, TEMPORAL VARIABILITY AND ENVIRONMENTAL INFLUENCES

    other factors in addition to the physical marine environment and outcomes of the previous breeding ... Abstract:  The driving factors of survival, a key demographic process, have been particularly ... what environmental features they are most likely to respond to. Here we examine the influence of ... environmental fluctuations, broad climatic conditions and the success of the breeding season prior to winter on ...

    Meeting Document : WG-EMM-11/P4 : Author(s): L. Emmerson and C. Southwell

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