Resultados de la búsqueda
-
Pursuit of polynyas in the Antarctic peninsula area
1987 was pursed from beginning on August 1 to end on October 20. The shape of the polynya changed ... observations. A typical polynya existed off the tip of the Peninsula in 1987 and 1991. In the such years, sea ... ice cover developed extensively. Inversely, the years of the narrow sea ice cover were 1988, 1989,1990 ... and 1993. In the such years, polynyas did not existed. The typical polynya (nearly 500 x 200 km) in ...
Meeting Document : WG-EMM-97/69 : Autor(es): Kimura, N., Shibazaki, K., Matsumura, S., Naganobu, M., Okada, Y.
-
Predation release of Antarctic silverfish (Pleuragramma antarctica) in the Ross Sea
contributed to the increase in Adélie penguin numbers. This paper brings together information on the biomass ... . These Antarctic toothfish were sampled over three years, between 2011/12 and 2013/14. The mass of ... inconsistent with predation release of silverfish due to the toothfish fishery being responsible for recent ... ) analysis was used to look for alternative indirect pathways through the food-web by which changes to ...
Meeting Document : WG-EMM-15/53 : Autor(es): M.H. Pinkerton, P. Lyver, D. Stevens, J. Forman, R. Eisert and S. Mormede (New Zealand).
-
The fish fauna of the Argentine Islands region (Antarctica; 12 UAE 2007–2008) and morphometrical changeability of Notothenia coriiceps (Richardson, 1844)
subdominant in the previous years, but during our researches Notothenia rosii prevailed already. Biological ... and morphometrical analyses of two groups Notothenia coriiceps from the Meek-Penola Channel and near ... the west coast of Grotto Island are conducted. It is exposed, that these two groups of fish species ... divided, probably, on the different population. Somatic indexes did not show considerable changeability ...
Meeting Document : WG-FSA-12/P06 : Autor(es): V.N. Trokhymets, V.A. Tymofyeyev and J.S. Perechrest
-
Demographic effects of extreme weather events: snow storms, breeding success, and population growth rate in a long-lived Antarctic seabird
population growth rate. We used detailed data on daily individual nest survival in a year with frequent and ... extreme weather events increase, there is an urgent need to understand and predict the ecological ... consequences of such events. In this study, we aimed to quantify the effects of snow storms on nest survival in ... Antarctic petrels and assess whether snow storms are an important driver of annual breeding success and ...
Meeting Document : WG-EMM-16/P13 : Autor(es): S. Descamps, A. Tarroux, Ø. Varpe, N.G. Yoccoz, T. Tveraa and S.-H. Lorentsen
-
Preliminary results of the three season research surveys of the Spanish FV Tronio in Division 58.4.1
along the area has been carried on. Preliminary results of the last 2015/16 season survey are presented ... together with a comparative analysis of the three-seasons carried out in this division. A depletion ... continues reading of otoliths for ageing Antarctic toothfish. These data will be added to the input data in ... the near future in order to carry out an integrated assessment of Dissostichus mawsoni stocks in this ...
Meeting Document : WG-SAM-16/40 Rev. 1 : Autor(es): R. Sarralde, L.J. López-Abellán and S. Barreiro
-
Entanglement in man-made debris of Antarctic fur seals at Bird Island, South Georgia
. Males accounted for 71% of entanglements, 88% of which were of young (1-4 years old) animals; females ... accounted for 64% of animals older than this. Obvious physical injury was being caused to 30% of animals and ... Abstract: Neck collars of man-made marine debris were seen on 208 Antarctic fur seals (and ... only on 19% of animals was the collar loose enough potentially to come off. The magnitude of the ...
Meeting Document : CCAMLR-VIII/BG/05 : Autor(es): J.P. Croxall, S. Rodwell and I.P. Boyd (United Kingdom)
-
Monitoring variability and change in the plankton communities of the Scotia Sea through Continuous Plankton Recorder surveys
conditions, particularly in the location of the Polar Front. This has a strong influence on patterns of ... species. The long-term impact of environmental variability on plankton species composition and abundance ... Survey (BAS) and the Sir Alister Hardy Foundation for Ocean Science (SAHFOS). This report documents the ... . Diatoms dominated the phytoplankton together with coccolithophores and silicoflagellates. The most ...
Meeting Document : WG-EMM-16/29 : Autor(es): G.A. Tarling, M.Z. Wootton, D.G. Johns, T.D. Jonas, E.J. Murphy and P. Ward
-
Further development of the fishery plans
established by the Scientific Committee and Commission. In recent years, Plans have been drafted for the krill ... /6). Each Fishery Plan draws together the history of management measures and fishery requirements ... agreed by the Commission, as well as key operational information for each fishery. In 2004, the ...
Meeting Document : WG-FSA-SAM-04/04 : Autor(es): Secretariat
-
Growth of mackerel icefish (Champsocephalus gunnari) and age-size composition of populations in subarea of South Georgia
catches were based on fish of two contiguous year classes, strong 1984 year class and middle 1983 year ... represented by fish of two contiguous age groups. It was shown that in the 1980s during a number of years the ... were studied for different periods. The analysis of age composition of icefish in subarea 48.3 showed ... class in subarea 48.3 depends on many factors, among which it it difficult to determine the most ...
Meeting Document : WG-EMM-03/60 : Autor(es): K.V. Shust and E.N. Kuznetsova (Russia)
-
Growth of mackerel icefish (Champsocephalus gunnari) and age-size composition of population in subarea of the South Georgia
catches were based on fish of two contiguous year classes, strong 1984 year class and middle 1983 year ... represented by fish of two contiguous age groups. It was shown that in the 1980s during a number of years the ... were studied for different periods. The analysis of age composition of icefish in subarea 48.3 showed ... class in subarea 48.3 depends on many factors, among which it it difficult to determine the most ...
Meeting Document : WG-FSA-SAM 03/7 : Autor(es): K.V. Shust and E.N. Kuznetsova (Russia)