Résultats de la recherche

1. Comparison of estimators of effective sample size for catch-at-age and catch-at-length data using simulated data from the Dirichlet-multinomial Distribution

   Abstract:  The incorporation of “effective sample size” (ESS) in integrated assessments is an ... a multinomial likelihood when there is extra-multinomial heterogeneity in age class or length class ... objective function in CASAL determines the implicit weight given to the commercial catch-at-age or catch-at ... -length frequency data relative to the other types of data used in integrated assessments of toothfish ...

   Meeting Document : WG-SAM-07/7 : Auteur(s): S.G. Candy (Australia)

2. Antarctic fur seal (Arctocephalus gazella) pup growth rates obtained at Cape Shirreff, Livingston Island, South Shetlands: 1994/95 to 1997/98 (CEMP Index C2, Procedure B)

   Shirreff's male pups grow faster in order to undergo with better body conditions higher latitude ... was attained in 1995, and females in 1994. Conversely, lowest growth rate for males was attained in ... 1994, and females in 1995 and 1996. This could be explained by differential maternal expenditure ... ). Further conclusions will have to be tested with larger data sets in order to establish possible ...

   Meeting Document : WS-AREA 48-98/18 Rev. 1 : Auteur(s): R. Hucke-Gaete, V. Vallejos and D. Torres (Chile)

3. Towards further development of stock assessment of stock abundance for Subarea 48.6 taking into account the developments since 2012 – a discussion paper

   Abstract:  This paper outlines stock assessment related work that has been done in Subarea 48.6 ... since 2012 and some review of work that could offer lessons in how to advance stock assessment in ... Subarea 48.6 in 2019. Author(s):  Delegations of Japan and South Africa Title:  Towards further ...

   Meeting Document : WG-FSA-18/66 : Auteur(s): Delegations of Japan and South Africa

4. REPORT OF SANCTIONS APPLIED BY SPAIN

   the action taken by Spanish Authorities in relation to the vessels Trosky (formerly Paloma V), Chilbo ... San 33 and Corvus, included in the CCAMLR-IUU list. 1. With regard to the vessels Corvus and Chilbo ... San 33, neither of them flagged to Spain – which were included in the CCAMLR list of illegal vessels ... did not provide proof or evidence in support of this action. However, as a result of the inspection of ...

   Meeting Document : CCAMLR-XXIX/BG/37 : Auteur(s): Delegation of Spain

5. Composition and standing stock estimates of finfish from the Polarstern bottom trawl survey around Elephant Island and the South Shetland Islands (Subarea 48.1, 19 December 2006 to 3 January 2007)

   found to be much lower than in 2002 and 2003 for C. gunnari, C. aceratus, C. rastrospinosus, G ... . gibberifrons, L. larseni and L. squamifrons while biomass was found to be higher in N. coriiceps around the ... South Shetland Islands and N. rossii in both areas. The proportion of juvenile G. gibberifrons ... . rossii was found in the same location where aggregations of the species have been detected in 1975/76 and ...

   Meeting Document : WG-FSA-07/22 : Auteur(s): K.-H. Kock, J. Appel, M. Busch, S. Klimpel, M. Holst, D. Pietschok (Germany), L.V. Pshenichnov (Ukraine), R. Riehl, S. Schöling (Germany)

6. First increment validation of Patagonian toothfish (Dissostichus eleginoides) from Heard Island

   otoliths. It has been recorded that differences in otolith interpretation exist between institutes ... routinely ageing D. eleginoides, resulting in differences of ageing data presented. One area that was ... represent annual events, no direct validation has been provided for the early growth of this species. In an ... attempt to determine the position of first increment formation daily increments in 7 sagittal otoliths ...

   Meeting Document : WG-FSA-05/61 : Auteur(s): K. Krusic-Golub, C. Green and R. Williams (Australia)

7. Age and growth of Scotia Sea icefish Chaenocephalus aceratus (Lönnberg, 1906), from the South Shetland Islands

   around the South Shetland Islands in the austral summer 2002 (January-February). Fish were caught by ... observed in other recent surveys within the same area, C. aceratus represented one of the predominant ... were estimated by counting annuli present in the sagittal otoliths, exposed by grinding and polishing ... males. The growth performance index ranged between 2 and 2.5, similar to that reported in other icefish ...

   Meeting Document : WG-FSA-02/77 : Auteur(s): M. La Mesa, J. Ashford, E. Larson and M. Vacchi

8. REPORT ON ACTIVITIES OF THE SCIENTIFIC COMMITTEE ON ANTARCTIC RESEARCH (SCAR) 2007/08

   reports on progress with the Evolution and Biodiversity in the Antarctic (EBA) programme, SCAR-MarBIN, the ... data portal continues to gather information on marine biodiversity in the Antarctic and the CPR Survey ... Hydrothermal Vents”, “Antarctic Fuel Spills” and “Prediction on Changes in the Physical and Biological ... Environment of the Antarctic”. The 10th SCAR International Biology Symposium will be held in Sapporo from 26 ...

   Meeting Document : CCAMLR-XXVII/BG/42 : Auteur(s): SCAR Observer to CCAMLR (G. Hosie, Australia)

9. Breeding biology and diet of pintado petrels Daption capense at Bouvetøya during the summer of 1996/97

   marked out and monitored intensively; in one colony overall breeding success was only 4 % owing to ... predation by Sub-Antarctic Skuas Catharacta antarctica on unattended chicks, but in another colony success ... was 85 %. Rates of failure were higher during the chick stage than in the egg stage for both of these ... two study colonies. The mean hatching date in these colonies was 11 January, and the first and last ...

   Meeting Document : WG-EMM-97/56 : Auteur(s): Isaksen, K., Huyser, O., Dyer, B.M., Cooper, J., Ryan, P.

10. Importance of myctophid fish distributions for formation of foraging areas of chinstrap penguins and Antarctic fur seals at Seal Island

    foraging areas in late December 1994 (Leg I) and late January 1995 (Leg II). Leg I and Leg II corresponded ... northward beyond the shelf, and foraged in offshore region during Leg I and on slope during Leg II. The ... diurnal foraging penguins alone fed on the shelf. The following advantages are considered for feeding in ... day so that only shallow diving was required to catch krill even in the day time; (2) krill tend to be ...

    Meeting Document : WG-EMM-95/87 : Auteur(s): Bengtson, J.L., Kawaguchi, S., Jansen, J.K., Takao, T., Meyer, W.R., Baba, N., Hiruki, L.M., Boveng, P., Cameron, M.F., Ogishima, T., Ichii, T., Naganobu, M.

Pages