Résultats de la recherche
-
Analysis of results from demersal fish surveys at South Georgia, undertaken by the United Kingdom and the USSR, January and February 1990
Paper Title: Analysis of results from demersal fish surveys at South Georgia, undertaken by the ... discussions and analyses of the data from a survey from MV Hill Cove in January 1990 and RV Akademik Knipovich ... in February 1990 around South Georgia. Both surveys were characterized by large numbers of small ... hauls interspersed with a few large catches. The small number of large catches cause a disproportionate ... Knipovich had only returned to Sevastopol at the end of May 1990 and this had left little time in which to ... Details of the trawl net used for the survey were not available at the workshop. These were to be ... series. All hauls were intended to last for 30 minutes at a speed of 3 to 3.5 knots. Hauls were ... . Detailed information will be presented at the 1991 meeting of the CCAMLR Working Group on Fish Stock ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 223–254 : Auteur(s): (Report of a Joint UK/USSR Workshop, 23 to 27 July 1990)
-
A composite recruitment index to describe interannual changes in the population structure of Antarctic krill at South Georgia
structure of Antarctic krill at South Georgia Abstract / Description: A composite recruitment index based ... and length data are derived from standard station net hauls only. Comparison of these indices showed ... substantial differences, due in part to bias arising from a large number of krill in just one of the station ... net hauls. Therefore, when the number of station net hauls is limited, bias is likely to be reduced if ... RECRUITMENT INDEX TO DESCRIBE INTERANNUAL CHANGES IN THE POPULATION STRUCTURE OF ANTARCTIC KRILL AT SOUTH ... population structure have been obtained from krill eaten by predators at the western end of South Georgia ... Programme has carried out systematic net hauls at up to eight stations within each of two boxes on the ... survey boxes is shown at the top left. The bathymetric contour represents 1 000 m. Table 1: Number of ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 71–84 : Auteur(s): Watkins, J.L
-
Beached marine debris surveys and incidences of seabird/marine mammal entanglements and hydrocarbon soiling at Bird Island and King Edward Point, South Georgia, and Signy Island, South Orkneys, 2009/10
(entanglements and hydrocarbon soiling only). Surveys of beached marine debris at Bird Island recorded a total of ... 2010) respectively. Surveys at Signy Island recorded a total of 41 items during summer 2009/10 ... varying quantities) at Bird Island, and the majority of items collected at Signy Island were either ... plastic or wood. Entanglements of 7 Antarctic fur seals (4 involving green nylon string) were observed at ...
Meeting Document : SC-CAMLR-XXIX/BG/10 : Auteur(s): Delegation of the United Kingdom
-
Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Signy Island, South Orkney Islands 1999/2000
Abstract: The results of the fourth annual survey of entanglement of Antarctic fur seals at Signy ... juvenile males, the main component of the population at this time of year.The number of sightings was the ... the number of fur seals arriving at Signy Island in 1999/2000 was the highest observed since ... being caused to 60% of animals at Signy Island, which was the lowest on record. As usual this was higher ...
Meeting Document : SC-CAMLR-XIX/BG/03 : Auteur(s): Delegation of the United Kingdom
-
Decrease in numbers of the eastern rockhopper penguins Eudyptes chrysocome filholi at Marion Island, 1994/95 to 2002/03
Abstract: Numbers of rockhopper penguins Eudyptes chrysocome breeding at Marion Island decreased ... adults, and there was a decrease in the mass at arrival at breeding colonies of both males and females ... . Except in 1997/98, the mass of chicks at fledging was less than that recorded at two other localities ... . These factors suggest an inadequate supply of food for rockhopper penguins at Marion Island. Decreases ...
Meeting Document : WG-EMM-03/10 : Auteur(s): R.J.M. Crawford, J. Cooper, B.M. Dyer, M.D. Greyling, N.T.W. Klages, D.C. Nel, J.L. Nel, S.L. Petersen and A.C. Wolfaardt (South Africa)
-
Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Signy Island, South Orkney Islands, 1998/99
Abstract: The results of the third annual survey of entanglement of Antarctic fur seals at Signy ... males, the main component of the population at this time of year. The number of sightings increased by ... parallel study undertaken at Bird Island, South Georgia in 1998/99. These indicated that the number of ... of fur seals was entangled in packaging bands at Signy Island (67%) than at Bird Island (38 ...
Meeting Document : SC-CAMLR-XVIII/BG/06 : Auteur(s): Delegation of the United Kingdom
-
Population of macaroni penguins Eudyptes chrysolophus at Marion Island, 1994/95 to 2002/03, with information on breeding and diet
Abstract: There is indication that numbers of macaroni penguins Eudyptes chrysolophus at ... subantarctic Marion Island have decreased since the early 1980s. Estimates of the population at the island fell ... large colonies, at Bullard Beach and Kildalkey Bay, account for about 85% of the overall population. At ... mean density of nests decreased. However, error on estimates of abundance at these colonies precludes ...
Meeting Document : WG-EMM-03/15 : Auteur(s): R.J.M. Crawford, J. Cooper and B.M. Dyer (South Africa)
-
BEACHED MARINE DEBRIS SURVEYS AND INCIDENCES OF SEABIRD/MARINE MAMMAL ENTANGLEMENTS AND HYDROCARBON SOILING AT BIRD ISLAND, SOUTH GEORGIA AND SIGNY ISLAND, SOUTH ORKNEYS, 2008-2009
Abstract: Surveys of beached marine debris at Bird Island, South Georgia recorded a total of 142 ... Island, whereas high numbers (67 items; 59%) of packaging bands were collected at Signy Island during the ... at Bird Island, while one entangled fur seal was seen at Signy Island. In total, 147 items of marine ... observed, also at Bird Island. Overall, levels of marine debris at Bird Island and Signy Island during 2008 ...
Meeting Document : WG-IMAF-09/09 : Auteur(s): C.M. Waluda (United Kingdom)
-
Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at Signy Island, South Orkney Islands 1996/97
Abstract: The results of the first annual survey of entanglement of Antarctic fur seals at Signy ... packaging bands were the main entangling materials at both sites, a greater proportion of fur seals was ... % respectively). Severe injury was being caused to 75% of animals at Signy Island (15% at Bird Island) and none ... discarded at sea within the Convention area. This is despite the ban by CCAMLR on the use of packaging bands ...
Meeting Document : SC-CAMLR-XVI/BG/07 : Auteur(s): Delegation of the United Kingdom
-
Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Signy Island, South Orkney Islands 1997/98
Abstract: The results of the second annual survey of entanglement of Antarctic fur seals at Signy ... involved were juvenile males, the main component of the population seen at Signy Island at this time of ... parallel study undertaken at Bird Island, South Georgia in 1997/98 where the number of reported ... bands at Bird Island was higher than in recent years and there was a decrease in the incidence of net ...
Meeting Document : SC-CAMLR-XVII/BG/12 : Auteur(s): Delegation of the United Kingdom