Résultats de la recherche

1. Approaches to data collection and analysis for detecting and quantifying functional overlap at the scale of the individual vessell

   Abstract:  Summary Over the past years, the subject of whether there is a functional overlap ... , considers what types of scientific questions can be answered with the two approaches to data collection and ... analysis, to facilitate the discussion of WG-EMM on developing specific scientific questions and enabling ... the development of a robustly designed data collection programme. Author(s):  M. Söffker and N. Gasco ...

   Meeting Document : WG-EMM-18/33 : Auteur(s): M. Söffker and N. Gasco

2. Krill associated ecosystem studies in the western Indian Ocean sector of the Southern Ocean during austral summer

   the Western Indian Ocean sector of the Southern Ocean, through in-situ ship survey in the area during ... Austral summer 2019-20. The proposed objectives are to to understand the distribution and biomass of krill ... in the western Indian Ocean Sector of the Southern Ocean, to relate larval/adult krill with the ... prevailing oceanographic/environmental set-up, to examine the spatial pattern of the resource and the forcing ...

   Meeting Document : WG-EMM-2019/79 : Auteur(s): B.R. Smitha, H. Manjebrayakath, C.R. Asha Devi, N. Saravanane and M. Sudhakar

3. Diel vertical distribution of Antarctic krill around the South Shetland Islands in February 2019 and its potential effect on biomass estimation

   Abstract:  To address the potential effect of DVM behavior on krill biomass estimates, diel ... vertical distribution of krill swarms around the South Shetland Islands in Subarea 48.1 were analyzed based ... , while 16.5 % compared to 5.7 % of the corresponding total NASC value (m 2 n.mile-2) integrated for ... likely underestimate the krill density due to the shallow distribution pattern of the animal, which may ...

   Meeting Document : SG-ASAM-2019/05 : Auteur(s): X. Wang, X. Yu, J. Zhang and X. Zhao

4. The biology of the spiny icefish (Chaenodraco wilsoni Regan, 1914)

   Abstract:  The most abundant icefish species observed in catches off the northern tip of the ... . wilsoni has been exploited on a commercial scale from the late 1970’s to the end of the 1980’s off ... information on biological features and life history characteristics of C. wilsoni, based on research survey ... close to spawning. Spawning at the tip of the Antarctic Peninsula is likely to occur in October-November ...

   Meeting Document : WG-FSA-07/P1 : Auteur(s): K.-H. Kock, L.V. Pshenichnov, C.D. Jones, J. Gröger and R. Riehl. (Polar Biol., 31 (3): 381–393 (2007))

5. Is population structure of Patagonian toothfish (Dissostichus eleginoides) determined by the Antarctic Circumpolar Current?

   off the southern South American continent around the Falkland Islands north of the Sub-Antarctic Front ... of the ACC, and off Kerguelen and South Georgia Islands, situated respectively in the southern Indian ... and Atlantic Oceans to the south of the Polar Front. We fitted von Bertalanffy (VB) models ... evidence suggests that, consistent with the dynamic-physical structure of the ACC, toothfish off the ...

   Meeting Document : WG-FSA-03/84 : Auteur(s): J.R. Ashford, C.M. Jones, E. Hofmann (USA), I. Everson (United Kingdom) and G. Duhamel (France)

6. Variation in echosounder calibration with temperature and some possible implications for acoustic surveys of krill biomass

   Abstract:  Accurate estimation of krill biomass by acoustic techniques is dependant upon a number ... of factors including, fundamentally, accurate echo-sounder calibration. The Simrad EK500 scientific ... calibration parameters were to be employed on survey around South Georgia, and no account were taken of the ... in turn to an under-estimation of krill biomass by 52.5 %. Every effort should therefore be made to ...

   Meeting Document : WG-EMM-97/52 : Auteur(s): Watkins, J.L., Woodroffe, P., Brierley, A.S., Goss, C.

7. Slow recovery of previously depleted demersal fish at the South Shetland Islands, 1983–2010

   closed this fishery in 1990. We report changes in size and abundance of the commercially exploited ... during preceding years. Modal age changed from 2-3 to 6-7 yr. Length data of G. gibberifrons, available ... from 1986, exhibited a similar pattern, showing a decrease until 1991-92. After a period of relative ... low recruitment. The length-frequency distribution of unexploited N. coriiceps throughout the whole ...

   Meeting Document : WG-FSA-12/P01 : Auteur(s): E.R. Marschoff, E.R. Barrera-Oro, N.S. Alescio and D.G. Ainley

8. Progress towards an assessment of Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 882C–H for the years 2002–03 to 2015–16 using a two-area model

   (SSRUs 88.2C–G) comprising a mix of large mature fish and small immature fish. Two-area stock assessment ... collect mark-recapture data in the South to help inform the estimation of biomass in the South. We present ... an update on these two-area stock models, which include two years of new data collected under a ... the model, and in particular the size of the fish population in the South. We recommend that the ...

   Meeting Document : WG-FSA-16/44 : Auteur(s): S. Mormede, K. Large and S. Hanchet

9. A GIS OF CCAMLR SPATIAL MANAGEMENT AREAS AND CONSERVATION MEASURES

   measures. This paper describes the structure of the GIS database and provides example outputs. The utility ... GIS facilitates easy mapping of CCAMLR’s spatial management framework and associated conservation ... of the GIS will be maximised by ensuring that it is kept up to date and easily accessible to ... OF CCAMLR SPATIAL MANAGEMENT AREAS AND CONSERVATION MEASURES Approval:  Approved ...

   Meeting Document : WG-EMM-11/22 : Auteur(s): P. Fretwell, S.M. Grant and S.L. Hill (UK) and S. Parker (New Zealand)

10. Preliminary report of the UK winter icefish survey, South Georgia (CCAMLR Subarea 48.3), 27 August to 21 September 2007

    Abstract:  This is a preliminary report of the results of the 11th UK South Georgia groundfish ... provided for C. gunnari whilst new information on the winter distribution and ecology of the demersal fish ... . Lawson, C. Main and A. Pande (United Kingdom) Title:  Preliminary report of the UK winter icefish survey ...

    Meeting Document : WG-FSA-07/56 : Auteur(s): M. Belchier, M.A. Collins, J. Moir-Clark, S. Fielding, J. Lawson, C. Main and A. Pande (United Kingdom)

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