Résultats de la recherche

1. CCAMLR-IWC WORKSHOP TO REVIEW INPUT DATA FOR ANTARCTIC MARINE ECOSYSTEM MODELS: UPDATE ON PROGRESS 2008

   . Coordinators have been appointed for all the data groups with the exception of the flying birds group, the work ... for which is being discussed with scientists involved in ACAP. An additional expert group has been ... added early in 2008 to review the state of the datasets on the exploitation of Southern Ocean species ... experts have been invited to attend with funding limited to one expert from each group, some experts that ...

   Meeting Document : WG-EMM-08/15 : Auteur(s): A. Constable and N. Gales (Co-conveners)

2. Admiralty Bay (South Shetland Islands) - long-term marine monitoring program

   predictions of future change. Comparison of the collected data with the archive data sets will allow us to ... biotic elements in Admiralty Bay. In this paper we provide WG-EMM with an update on proposed project ... the site of comprehensive environmental studies over the last 30 years and existing data sets provide ... ". This project will continue to develop over the coming years and results we will be presented and ...

   Meeting Document : WG-EMM-15/47 : Auteur(s): A. Panasiuk-Chodnicka, M. Korczak-Abshire, M.I. Żmijewska, K. Chwedorzewska, E. Szymczak, D. Burska, D. Pryputniewicz-Flis and K. Łukawska-Matuszewska (Poland)

3. Spatial distribution and swarm characteristics of Antarctic krill around the South Shetland Islands

   acoustic density were obtained with Kriging space interpolation, which showed that krill usually aggregated ... in March 2015 compared with those in December 2013, January 2016 and February 2018, although the ... markedly higher than the other two years. Meanwhile, much more swarms (1055) were detected in February 2018 ... than the other three years. The results also indicated that more krill swarms located at deeper water ...

   Meeting Document : WG-EMM-18/42 : Auteur(s): X. Yu, X. Wang and X. Zhao

4. Spatial distribution and population structure of juvenile Antarctic toothfish (Dissostichus mawsoni) in the South Shetland Islands (Subarea 48.1)

   between 22 and 78 cm TL, equally distributed between sexes, most of them with gonads at immature stage of ... comparison with the biological traits of adults reported elsewhere. Author(s):  M. La Mesa, E. Riginella and ... between 2 and 7 years in males and between 2 and 8 years in females, respectively. Annual growth rate was ...

   Meeting Document : WG-FSA-18/45 : Auteur(s): M. La Mesa, E. Riginella and C.D. Jones

5. Research proposal for Dissostichus spp. in Subarea 48.1 by Ukraine in 2019

   longline in the eastern part of Subarea 48.1. Author(s):  Delegation of Ukraine Title:  Research proposal ...

   Meeting Document : WG-FSA-18/20 Rev. 1 : Auteur(s): Delegation of Ukraine

6. Investigating the uncertainty of age determinations for Patagonian toothfish (Dissostichus eleginoides) and the implications for stock assessment

   expanded the reference collection to include an additional 50 otoliths with a mean age above 25 years. The ... aggregate into the plus group, negative errors are truncated below the minimum age, and fish with true ages ... matrix.We assessed misclassification matrices obtained using the revised Candy method along with two other ... of variation (c.v.) of 0.1. We compared the misclassification matrices with the observed age ...

   Meeting Document : WG-FSA-14/46 : Auteur(s): P. Burch, P. Ziegler, W. de la Mare and D. Welsford (Australia)

7. Effect of a shore-based sampling program on Notothenia coriiceps populations

   two close but not previously sampled zones (sites 2 and 3). The fish were caught with trammel nets ... summers of 1992/93 to 1994/95 at one specific zone (site 1) with those taken in the same last summer at ... ) and 3 (x=31.8 cm) exhibited no significant differences in mean length. They were significantly larger ...

   Meeting Document : WG-FSA-99/24 : Auteur(s): R. Casaux and E. Barrera-Oro (Argentina)

8. Length-age composition of the Patagonian toothfish, Dissostichus eleginoides, from the Kerguelen Island area

   years. Results presented in the paper are in agreement with results of other studies conducted in the ... fluctuate considerably, mean fish length was 76.0- 86.6 cm. Fish of two to 14 years old age groups were most ... abundant in catches, mean age was 8.2- 9.8 years. In the 1991/92 season fishing for the species was ... cm, mean age was 5.8 years. Mean length of fish taken at 540- 600 m depth was 85.8, mean age was 9.7 ...

   Meeting Document : WG-FSA-92/08 : Auteur(s): V.G. Prutko and V.N. Chikov (Ukraine)

9. Increasing abundance of Type A killer whales (Orcinus orca) in the coastal waters around the Antarctic Peninsula

   increased access to new feeding areas, perhaps combined with increasing local abundance of key prey species ... increasing in recent years, including observations of predation on a number of whale and pinniped species ... . Here we integrate satellite telemetry (n = 10 tags) and photo-identifications (13 years, 15,828 ... to 3048 km from tagging site). Photographic re-sightings of the same whales were common across years ...

   Meeting Document : WG-EMM-17/49 : Auteur(s): H. Fearnbach, J.W. Durban, D.K. Ellifrit and R.L. Pitman

10. Otolith chemistry reveals local population structure of Antarctic toothfish (Dissostichus mawsoni) within the CCAMLR Subarea 48.6

    Abstract:  Antarctic toothfish Dissostichus mawsoni is an important fish species with ecological ... with ontogeny and different between spawning/hatching ground and the area that fish captured. Otolith ... chemistry with combining to oceanography and tagging data may provide more accurate information on ... blocks (48.6- 2, 48.6- 3 and 48.6- 4) of CCAMLR subarea 48.6. Otolith samples of D. mawsoni (n=32) were ...

    Meeting Document : WG-FSA-18/75 : Auteur(s): L. Wei, G.P. Zhu, S. Somhlaba, X.Y. Yu and M. Duan

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