Resultados de la búsqueda
-
Sea surface temerature anomalies near South Georgia: relationships with the South Atlantic and the Pacific El Niño regions
anomalies, with periodicity evident at a lag period of 4 years. To the north of the island significant ... almost 3 years, and with the West Pacific showing the strongest correlations. These global ... autocorrelation was also evident at a lag period of 1 year; though this was restricted to an area that ...
Meeting Document : WS-AREA 48-98/10 : Autor(es): P. Trathan and E.J. Murphy (UK)
-
Trends in relative abundance of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in trammel net catches at Potter Cove, South Shetland Islands
has continued in Potter Cove from 1991 to 1998, covering a continuous sampling period of 15 years and ... . rossii and G. gibberifrons in the last 15 years is the effect of the offshore commercial fishery in the ...
Meeting Document : WG-FSA-98/57 : Autor(es): E. Barrera-Oro, E.R. Marschoff and R.J. Casaux (Argentina)
-
Management of C. gunnari in Subarea 48.3
increased consumption of icefish by Antarctic fur seals in years of poor krill availability. Thus natural ... mortality of icefish may, in some years, increase by a large factor (assumed here to be 4) declining to ... fishing, under conditions where M is assumed to be highly variable from year to year. Author(s): Kirkwood ...
Meeting Document : WG-FSA-97/38 : Autor(es): Kirkwood, G.P., Parkes, G.B., Everson, I., Agnew, D.J.
-
Recruitment of Antarctic krill (Euphausia superba) and possible causes for its variability
abundance of the 1 + age class, varies substantially between years, whereas it is quite similar between ... different surveys within the same field season. The overall mean recruitment index for all years was Rmean ... Abstract: Between year variability of krill year class success and recruitment during the 1977 ... = 0.210. Good recruitment was observed for the 1980/81, 1985/86, 1987/88, and 1990/91 year classes ...
Meeting Document : WG-EMM-95/15 : Autor(es): Siegel, V., Loeb, V.
-
Analysis of the diet of Champsocephalus gunnari in Subarea 48.3, Dr E. Holmberg survey, February 1995
empty stomachs (also at Shag Rocks), close to the values reported for years of krill scarcity. While no ... somewhat below the historical years of high abundance, but above than in 1994. Author(s): Marschoff, E ...
Meeting Document : WG-FSA-95/36 : Autor(es): Marschoff, E., Barrera-Oro, E., Casaux, R.
-
Long-term study of the at-sea distribution of seabirds and marine mammals in the Scotia Sea, Antarctica
-bellied Storm Petrel. Antarctic Prion was the dominant species within the 5 years whereas Cape petrel ... encounter rate in the five years (0.29 ± 1.57 whale/nautical mile), followed by Humpback whale (0.09 ± 0.54 ...
Meeting Document : WG-EMM-14/06 Rev. 1 : Autor(es): J.L. Orgeira, M. Alderete, Y.G. Jiménez and J.C. González (Argentina)
-
Has krill fishing the potential to adversely affect recruitment in Antarctic notothenioid fishes?
Abstract: A few years after krill (Euphausia superba) fishing had started in 1972/73, it became ... 25 years later WG-FSA is still not in the position to estimate the amount of fish by-catch reliably ...
Meeting Document : WG-FSA-14/66 : Autor(es): K.-H. Kock (Germany) and C.D. Jones (USA)
-
Population status of Ross Sea killer whales (Orcinus orca, Type C) in McMurdo Sound, Antarctica, based on photo-identification studies
175 there annually. Despite high turnover of different whales between years, we used a Bayesian mark ... individuals resighted over 2-14 years. Contrary to recent reports that commercial overfishing of Antarctic ... -eating ecotype, in McMurdo Sound, Antarctica, during 7 seasons, over a 14-year period from 2001/02 to ...
Meeting Document : WG-EMM-16/50 : Autor(es): R. Pitman, H. Fearnbach and J.W. Durban
-
Estimation of tag-loss rates for tagged fish in the Patagonian toothfish (Dissostichus eleginoides) fisheries at Heard Island and McDonald Islands in Division 58.5.2
fishery, 99.3% of all double-tagged fish retain at least one tag after one year, and 80.2% after ten years ... at liberty of 6 years, as l = 0.014 for longline and l = 0.007 for trawl. However, this single tag ...
Meeting Document : WG-FSA-17/21 : Autor(es): P. Ziegler
-
Estimating the biodiversity of Planning Domain 5 (Marion and Prince Edward Islands – Del Cano – Crozet) for ecoregionalisation
and Prince Edward Islands together host the entire population of Crozet shag, about 70% of the world ... productivity in the vicinity of the islands, together with the large aggregations of seabirds and seals found ...
Meeting Document : WG-EMM-12/33 Rev. 1 : Autor(es): P. Koubbi (France), R. Crawford (South Africa), N. Alloncle, N. Ameziane, C. Barbraud, D. Besson, C.-A. Bost, K. Delord, G. Duhamel (France), L. Douglass (Australia), C. Guinet (France), G. Hosie (Australia), P.A. Hulley (South Africa), J. O. Irisson (France), K.M. Kovacs (Norway), R. Leslie, A. Lombard, A. Makhado (South Africa), C. Martinez (France), S. Mormede (New Zealand), F. Penot (France), P. Pistorius (South Africa), P. Pruvost (France), B. Raymond (Australia), E. Reuillard, J. Ringelstein (France), T. Samaai (South Africa), P. Tixier (France), H.M. Verheye (South Africa), S. Vigetta (France), C. von Quillfeldt (Norway) and H. Weimerskirch (France)