Résultats de la recherche

1. Study on reproductive biology of Champsocephalus gunnari, Chaenocephalus aceratus and Pseudochaenichthys georgianus from South Georgias and Shag Rocks, Dr Eduardo Holmberg survey – May 2013

   suggests spawning of P.georgianus and C.aceratus. C. gunnari batch fecundity showed a potential fit to size ... and a lineal fit to weight and ranged from 2,500 (27 cm TL) to 21,300 (54 cm TL) hydrated oocytes ... . Batch fecundity values for P.georgianus and C.aceratus showed a lineal fit to size and weight, they ... dry weight of C.gunnari ’s hydrated oocytes showed a positive relationship with female size. Author(s ...

   Meeting Document : WG-FSA-13/59 : Auteur(s): M.I. Militelli, G.J. Macchi and K.A. Rodrigues (Argentina)

2. Continuation in the 2015/16 season of the research plan initiated in 2012/13 for stocks of Dissostichus spp. in Divisions 58.4.1 and 58.4.2

   Abstract:  In the 2012/13 fishing season Spain began implementing a multi-annual Research Plan for ... problems with a blade of the propeller, During the season 2015/16 is intended to make the same proposed ... -season and between-seasons recaptures and a preliminary Age-Length Key of Dissostichus mawsoni has been ... built after otholits reading from 58.4.1 division specimens. All these data will allow a robust stock ...

   Meeting Document : WG-SAM-15/02 : Auteur(s): Delegation of Spain

3. 2019 Ross Sea shelf survey results and notification for research in 2020

   2012, with a revised proposal presented in 2017 for five years (2018–2022). The objectives of the ... south of SSRUs 881.J and 881.L in the southern Ross Sea (Strata A–C) using standardised gear in a ... Satellite Archival Transmitters (PSATs) on toothfish throughout the survey area and tested a remote ...

   Meeting Document : WG-SAM-2019/03 : Auteur(s): S. Parker and C. Jones

4. Stones in toothfish stomachs: an unusual source of geological information from closed regions of Antarctic shelf and slope

   Abstract:  The rocks from stomachs of Dissostichus mawsoni were used as a source of geological ... respect, Dissostichus mawsoni may be considered as a «dredge» with a wide area of sampling. Preliminary ...

   Meeting Document : WG-FSA-07/58 : Auteur(s): N.V. Kokorin, D.S. Klucharev and M.A. Sukhoruchenkov (Russia)

5. PRELIMINARY ASSESSMENT OF TOOTHFISH IN SUBAREA 48.3

   lognormal recruitment suggest a long-term yield of 3900 t. Using a recent subset of estimated cohorts ... suggests a lower yield.   Author(s):  D.J. Agnew and T. Peatman (United Kingdom) Title:  PRELIMINARY ...

   Meeting Document : WG-FSA-09/28 Rev. 1 : Auteur(s): D.J. Agnew and T. Peatman (United Kingdom)

6. Proposal to extend trial of daytime setting of longlines between 15 and 30 April in the Patagonian toothfish longline fishery in CCAMLR Statistical Division 58.5.2

   encompass the 2013/14 and 2014/15 fishing seasons.  Extending the trial for a further two years will enable ... sufficient daytime fishing effort to occur in the trial period to ensure there is a proper basis for ... assessing whether to allow daytime fishing between 15 and 30 April on a permanent basis. Author(s):  J ...

   Meeting Document : WG-FSA-13/20 : Auteur(s): J. Barrington and B. Baker (Australia)

7. Species profiles: Target species and common by-catch species

   Abstract:  A project is proposed to provide CCAMLR with a detailed description of all species ... context of international organisations.  This paper provides a brief outline of the work proposed, work ...

   Meeting Document : WG-FSA-16/51 : Auteur(s): K.-H. Kock, C.D. Jones and D. Welsford

8. Stable isotope analysis of Southern Ocean fish tissue samples to investigate trophic linkages of Antarctic toothfish (Dissostichus mawsoni)

   to determine C and N stable isotope composition. Values of?15N and?13C suggested that a minimum of ... occupying the highest level. Some Antarctic toothfish sampled in this study occupied a similar trophic level ... data exist (TOA, ANT, CHW, WGR), a stepwise generalised linear model was used to identify significant ... , sex, and depth. Location and a positive relationship with fish length were usually the only variables ...

   Meeting Document : WG-EMM-07/19 : Auteur(s): M.H. Pinkerton, S. Bury, S.M. Hanchet and D. Thompson (New Zealand)

9. Investigation of the sensitivity of the Ross Sea toothfish assessment to withholding subsets of the available data

   model outputs of withholding from a stock assessment between one and eight years of age frequency and/or ... tag recapture data. Examining the impact of considering a subset of the available data simulates both ... Subarea 88.2E was used as a sensitivity to examine the impact of withholding data from an assessment based ... on a smaller and shorter data set. In both instances the ‘base case’ model was used, i.e., the models ...

   Meeting Document : WG-SAM-11/17 : Auteur(s): S. Mormede (New Zealand)

10. Mitigating killer whale depredation on demersal longline fisheries by changing fishing practices

    identify fishing practices that could reduce odontocete depredation, with a focus on killer whales (Orcinus ... : the limited number of depredating killer whales (n = 78 in 2012) may induce a dilution effect with ... negatively influenced by, iii) length of longlines: longer sets may provide killer whales access to a greater ... situations elsewhere. To a greater extent, this study is illustrative of how collaborative work with ...

    Meeting Document : WG-FSA-14/P03 : Auteur(s): P. Tixier, J. Vacquie Garcia, N. Gasco, G. Duhamel and C. Guinet

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