Résultats de la recherche
-
Results of a research survey to monitor abundance of pre-recruit Antarctic toothfish in the southern Ross Sea, February 2012
endorsed a proposal to carry out this work once the fishery had closed at the end of the 2011/12 season ... Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... recruitments from a well-designed survey could be a useful input into the Ross Sea stock assessment model and ... . The survey had two main objectives: (i) To establish the feasibility of developing a time series of ...
Meeting Document : WG-SAM-12/29 : Auteur(s): S.M. Hanchet, S. Mormede, A. Dunn (New Zealand) and H.-S. Jo (Republic of Korea)
-
Cephalopods and mesoscale oceanography at the Antarctic polar front: satellite tracked predators locate pelagic trophic interactions
features associated with the bathymetry of the northern end of the Northeast Georgia Rise and near a gap in ... Abstract: Predator data and exploratory fishing in the Scotia Sea have revealed the presence of ... cephalopod stocks in the Antarctic Polar Frontal Zone (PFZ). This is a vast, remote region where large ... cephalopod concentrations, and sampled them with commercial and scientific nets to determine the relationship ...
Meeting Document : WG-EMM-96/12 : Auteur(s): Murphy, E.J., Trathan, P.N., White, M.G., Bone, D.G., Hatfield, E.M.C., Rodhouse, P.G., Prince, P.A., Watkins, J.L.
-
A comparison of densities and length distribution of the Champsocephalus gunnari stock in Subarea 48.3 between years 1994 and 1995
Abstract: Mean densities and length structure of Champsocephalus gunnari obttained in the 1994 ... determined by a search procedure yielding randomly selected clusters of stations located within the 50–150 ... ; 151–250 and 251–500 m depth strata. The cluster structure is considered as a nested factor in an ANOVA ... design. Forty five stations in the first cruise and 48 in the second were analyzed. Of these, 51 pairs of ...
Meeting Document : WG-FSA-95/34 : Auteur(s): Marschoff, E., Calcagno, J., Gonzalez, B.
-
Observation on the interactions between marine mammals and mid-water krill trawl
thereby was not attracted extensively by the presence of the fishing vessel. Chasing after the krill ... Abstract: An observation on the interaction between marine mammal and krill midwater trawl was ... carried out onboard the Chinese krill fishing vessel Fu Rong Hai during the 2018/19 fishing season. The ... conducted visually with the aid of a SLR Camera and a Marine Binocular. Sea surface observation in Subarea ...
Meeting Document : WG-FSA-2019/60 : Auteur(s): Y. Ying, G. Fan, X. Zhao, J. Zhang, X. Wang and J. Zhu
-
The winter pack-ice zone provides a sheltered but food-poor habitat for larval Antarctic krill
from the ice. The larvae feed on this sparse ice-associated food during the day. After sunset, they ... Abstract: A dominant Antarctic ecological paradigm suggests that winter sea ice is generally the ... main feeding ground for krill larvae. Observations from our winter cruise to the southwest Atlantic ... sector of the Southern Ocean contradict this view and present the first evidence that the pack-ice zone ...
Meeting Document : WG-EMM-18/P04 : Auteur(s): B. Meyer, U. Freier, V. Grimm, J. Groeneveld, B.P.V. Hunt, S. Kerwath, R. King, C. Klaas, E. Pakhomov, K.M. Meiners, J. Melbourne-Thomas, E.J. Murphy, S.E. Thorpe, S. Stammerjohn, D. Wolf-Gladrow, L. Auerswald, A. Götz, L. Halbach, S. Jarman, S. Kawaguchi, T. Krumpen, G. Nehrke, R. Ricker, M. Sumner, M. Teschke, R. Trebilco and N.I. Yilmaz
-
CHINSTRAP PENGUINS: MISUNDERSTOOD AND VULNERABLE MONITORS OF ECOSYSTEM CHANGES IN THE SCOTIA SEA REGION OF ANTARCTICA
Abstract: Sea ice plays a critical role in structuring ecosystem dynamics throughout the Scotia ... area directly. A paradigm guiding recent research in the Western Antarctic Peninsula (WAP) region of ... the SS, the “sea-ice hypothesis”, suggests that declines in the seasonal extent and duration of sea ... , 30 years of field studies in the WAP, coupled with more regional surveys throughout the Scotia Sea ...
Meeting Document : WG-EMM-09/17 : Auteur(s): W.Z. Trivelpice, J.T. Hinke, A.K. Miller, C. Reiss, S.G. Trivelpiece and G.M. Watters (USA)
-
Fisheries in the Southern Ocean – an ecosystem approach. Trans. Roy. Soc. Lond. (in press)
fisheries worldwide in that target species were depleted to low level one after the other. Currently, two ... Abstract: The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) is ... extended to the application of a precautionary approach in the late 1980’s. In our review we deal primarily ... with the science–related aspects of CCAMLR and its development towards an ecosystem approach to the ...
Meeting Document : SC-CAMLR-XXIV/P01 : Auteur(s): Kock, K.-H., K. Reid, J. Croxall and S. Nicol
-
Climate variability in the western Antarctic peninsula region
ice extent, even after accounting for serial correlation in the two time series. There are distinct ... Abstract: The climate of tile Western Antarctic Peninsula (WAP) region is distinguished by large ... seasonal and interannual variability and by the occurrence of seasonal sea ice which changes the ocean ... -atmosphere interface, affects tile surface albedo, and modifies the annual temperature cycle. Air temperature ...
Meeting Document : WG-EMM-95/61 : Auteur(s): Stammerjohn, S.E., Baker, K.S., Smith, R.C.
-
An updated descriptive analysis of the toothfish (Dissostichus spp.) tagging program in Subareas 88.1 and 88.2 for 2006/07
Abstract: Descriptive analyses of the toothfish tagging programme carried out in Subareas 88.1 ... and 88.2 since 2001 are updated. The paper provides a preliminary update of the tag-release and tag ... -recapture data that were presented at the October 2006 meeting of WG-FSA by including data from New Zealand ... previously were unavailable for about half of the non-New Zealand vessels for 2004 are now available and ...
Meeting Document : WG-SAM-07/5 : Auteur(s): A. Dunn, S.M. Hanchet and S.L. Ballara (New Zealand)
-
Temporal scales of foraging in a marine predator: implications for interpreting the distribution of prey
the surface, the time taken for a fur seal to locate a new patch after leaving an old one is an ... Abstract: The pattern of prey distribution can profoundly affect the foraging behavior and ... must be able to adapt quickly to changes in the spatial patterning of prey. Antarctic fur seals feed ... indication of the distance between patches. The frequency distribution of intervals between bouts of foraging ...
Meeting Document : WG-EMM-95/23 : Auteur(s): Boyd, I.L.