Résultats de la recherche

1. Results of scientific observation in Antarctic krill fishery in 2010/11: II. analysis of variability of krill size and fish by-catch

   observation error. The parameters of the model were estimated by the Markov chain Monte Carlo (MCMC) method in ... as variables of interest based on the scientific observer data for the 2010/2011 fishing season. Both ... krill length model, some parameters did not converge well in the bycatch fish model. The interaction ... is no clear difference among cruises within a vessel. The uncertainty in parameter estimation is ...

   Meeting Document : WG-EMM-12/67 : Auteur(s): T. Okuda and M. Kiyota (Japan)

2. Abundance of larvae and assessment of recruitment size of Carlsberg lantern fish (Electrona carlsbergi Tåning, 1932) - (family myctophidae) in Southwest Atlantic in 1989

   recruitment biomass (fish aged up to 1 year) in this species for the area of 87750 square miles studied. The ... abundance of larvae in this area was 4.3 x 10 ind., while the biomass of one year old fish obtained was ... 10750 tons. A whole chain of similar reproductive grounds is assumed to exist in the notal zone of the ... Atlantic and other sectors of the South Ocean to be able to sustain a large biomass of E. carlsbergi in ...

   Meeting Document : WG-FSA-95/07 : Auteur(s): Nevisnky, M.M.

3. Possibility of predicting sea-ice concentration (SIC) in research block (RB) 48.6-5 (Southern part of Subarea 48.6) using sea surface temperature (SST) in RB 48.6-2 (Northern part of 48.6)

   48.6-5 corresponded well with the dynamics of monthly sea surface temperature  (SST)  anomaly  in  RB ...   48.6-5.   However,  in  the  prediction  of SIC  in  RB  48.6-5  using  the  monthly  SST  anomaly ... be used to predict the SIC in 48.6- 5.  There  is  not  a  strong  correlation  of  SST  between ... Abstract:  It  was  reported  at  WG-SAM-2019  that  the  sea  ice  concentration  (SIC) of RB ...

   Meeting Document : WG-FSA-2019/49 : Auteur(s): T. Namba, R. Sarralde, S. Somhlaba and J. Pompert

4. Analysis of sea-ice concentration of 48.6_4 and _5 with remote sensing data during the latest four seasons

   to enter the block, thus she left for the northern part of Subarea 48.6 in February 8th. However, the ... sea-ice disappeared in the eastern part of the block in February 21st after she left. The sea-ice was ... becoming thick around whole block in March 11th, but disappeared in the eastern part of the block again in ... the opportunity to go into the block even though there were apparently free of ice for some part in ...

   Meeting Document : WG-SAM-16/42 Rev. 1 : Auteur(s): T. Namba, K. Taki and T. Ichii

5. Towards the development of an assessment of stock abundance for Subarea 88.2 SSRUs 88.2C–G

   fish have been recaptured. It is likely that the lack of recaptures of tagged fish in this region has ... effort. By drawing on the success of tagging programmes in other CCAMLR fisheries, we develop an approach ... these fishing grounds as a condition of fishing in the slope region (SSRUs 88.2C–G). This condition ... least 3 tags per tonne in the short term. In addition to improving estimates of abundance a higher ...

   Meeting Document : WG-FSA-14/59 : Auteur(s): S.M. Hanchet and S.J. Parker (New Zealand)

6. A comparison of acoustic targets at South Georgia and the South Orkney Islands during a season of profound krill scarcity

   Abstract:  Dual frequency (38 and 120 kHz) acoustic surveys of shelf-break regions in the vicinity ... of Willis Islands, South Georgia and Coronation Island, South Orkneys, both in the Atlantic sector of ... signals. The water column in the vicinity of Willis Islands was characterised by a series of diffuse but ... approximate six-fold difference in mean krill abundance was detected between the two areas, but in comparison ...

   Meeting Document : WG-EMM-95/75 : Auteur(s): Watkins, J.L., Brierley, A.S.

7. COMPARATIVE CHARACTERISTICS OF PATAGONIAN (DISSOSTICHUS ELEGINOIDES) AND ANTARCTIC (D. MAWSONI NORMAN) TOOTHFISH INHABITING DIFFERENT SECTORS OF THE SOUTHERN OCEAN

   of these parameters revealed essential differences in food spectra both at the first pelagic stage of ... larger on the average than in the area of Kerguelen Archipelago (58.5.1.) (Posters 1 and 2). In turn ... , Antarctic toothfish individuals in the seas of Indian Sector (58.4) are larger than in the Pacific Ross Sea ... shelf and slope of continental seas in the Indian Sector of Antarctica. Author(s):  K.V. Shust, I.P ...

   Meeting Document : WG-FSA-09/24 : Auteur(s): K.V. Shust, I.P. Zarikhin, I.G. Istomin, A.F. Petrov, V.A. Tatarnikov and N.S. Demina (Russia)

8. Proposal of the Russian Federation to open Subarea 88.3 for exploratory fishery of Dissostichus spp.

   . Collected in research fishing data contributes to the achievement of the main objectives of research for the ... of hypotheses about the ratio of fish in the area and the total stock as well as studying of ... calculated by the accepted in SC-CCAMLR-XXX/5 p.2.40 (ii) formula. Value of toothfish`s stock by SSRUs and ... all details of stock assessment methods are described in the present work. Author(s):  Delegation of ...

   Meeting Document : WG-FSA-13/12 : Auteur(s): Delegation of the Russian Federation

9. Reassessment of important population parameters for Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on time series of surveys and fishery data

   parameters and recruitment of Patagonian toothfish, Dissostichus eleginoides, in the Heard Island region. A ... new survey of the Heard Island Plateau was undertaken in May- June 2001, providing the sixth survey ... -estimated in the past. An estimate of natural mortality indicates that mortality of young fish, ages 3-8 ... , may be much greater than older fish. This may need to be taken account of in the assessment process ...

   Meeting Document : WG-FSA-01/73 : Auteur(s): A.J. Constable, R. Williams, T. Lamb, I.R. Ball and E. van Wijk (Australia)

10. Homogeneity of body length composition of Antarctic krill within the commercial haul

    Abstract:  The homogeneity of krill length composition in commercial trawl catches (hauls) was ... difference (P>0.05) in 53 out of 60 hauls. Therefore it is concluded that sampling from one part of the ... haul provides a reasonable estimate of length composition in the entire haul as a whole. In contrast to ... investigated by comparing length compositions from different parts of the same haul. There was no significant ...

    Meeting Document : WG-KRILL-90/11 Rev1 : Auteur(s): T. Ichii (Japan)

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