Résultats de la recherche
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Beach debris survey – Main Bay, Bird Island, South Georgia 1996/97
Abstract: The seventh year of surveys of beached man-made debris at Bird Island, South Georgia ... use. The reduction in man-made debris compared to the two previous years may reflect a reduction in ... % (n = 180) were collected during the summer, only the second year on record when then summer ... monitoring and the need for further steps to counteract the jettisoning of man-made debris in the Southern ...
Meeting Document : CCAMLR-XVII/BG/7 : Auteur(s): Delegation of the United Kingdom
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Diet and prey consumption of Antarctic petrels Thalassoica antarctica at Svarthamaren, Dronning Maud Land and at sea outside the colony
at Antarctic petrels from Svarthamaren may fly more than 3,000 km during one foraging trip and may ... Abstract: The diet of the Antarctic petrel Thalassoica antarctica was studied during two years at ... %), followed by fish (29%) and squid (3%), whereas individuals collected in the pack ice took mostly fish (95 ...
Meeting Document : WG-EMM-97/58 : Auteur(s): Røv, N., Lorentsen, S., Klages, N.
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Variation in the distribution of Antarctic krill Euphausia superba around South Georgia
probably 3+ and older (mean size 49.5 mm); cluster 4 and 5 were small krill, mostly year 1 + either with or ... types with relatively simple biological characteristics: cluster 1 were medium-sized year 2+ krill (mean ... size 39.7 mm); cluster 2 were a mixture of year classes (mean size 37.7 mm); cluster 3 were large krill ... cruises and look particularly at differences between krill taken from the eastern and western ends of the ...
Meeting Document : WG-EMM-97/47 : Auteur(s): Daly, H.I., Murray, A.W.A., Watkins, J.L.
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The migration patterns of Electrona carlsbergi (Tåning, 1932)
the early stages of its life cycle, a theory has been put forward concerning the presence in the notal ... region and various sectors of Antarctica of several reproductive zones coinciding with areas of large ... mature specimens 8.5-11 cm in length and 3-5 years old increases. Based on the dynamic processes of the ... sectors of Antarctica E. carlsbergi is represented by immature specimens 7 to 8 cm in length and 2 years ...
Meeting Document : WG-FSA-93/18 : Auteur(s): A.N. Kozlov (Russia)
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Antarctic neritic krill Euphausia chrystallorophias: spatio-temporal distribution, growth and grazing rates
for only 180 days per year, mean growth rates ranged from 0.070-0.075 to 0.019-0.022 mm per day during ... the first and the fourth year, respectively. Von Bertalanffy growth curves calculated for different ... early December and may extend to the beginning of January. Most larvae were in the stage of metanauplius ... /calyptopis I at the beginning of January and calyptopis III/furcilia I during February. The year-l cohort was ...
Meeting Document : WG-Joint-94/10 : Auteur(s): E.A. Pakhomov (Ukraine) and R. Perissinotto (South Africa)
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Analysis of trawl data from the South Georgia krill fishery
large number of trawls were undertaken by each,vessel, with trawls being shorter in duration during the ... with shooting and hauling the net were usually short and showed little variation, whereas the time ... associated with the actual trawl phase was longer and more variable. The distance between consecutive trawls ... middle of the day. Daytime trawls were also generally deeper and produced a larger catch. Individual ...
Meeting Document : WG-EMM-97/41 : Auteur(s): Parkes, G., Trathan, P.N., Everson, I., Murphy, E.J.
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Beach debris survey – Main Bay, Bird Island, South Georgia 2000/01
Abstract: During the eleventh year of standardised beach surveys of man-made debris at Bird ... the lowest since reporting began, with only 4 items more collected in the summer than in the winter ... decrease levels, and ensure compliance with the correct waste disposal procedures for both domestic and ... ), but to a lesser extent than in previous years, whilst miscellaneous debris accounted for almost as ...
Meeting Document : SC-CAMLR-XXI/BG/03 : Auteur(s): Delegation of the United Kingdom
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Report on fish by-catch during research fishing activities in Division 58.4.4b between 2008 and 2018
in the eastern part, where unusually high concentrations of Pennatulacea (Sea pens) where reported in ... 2018. A large number of skates were caught (up to 1,400 individuals in one year). While most skates ... Abstract: We report on objective 3 “Investigate population structure of bycatch species and ... catch ratio of about 15%, autolines ratio was up to 70% in some years. Hence, bycatch number and biomass ...
Meeting Document : WG-FSA-2019/53 : Auteur(s): C. Péron, C. Chazeau, N. Gasco and F. Massiot-Granier
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Mean circulation and hydrography in the Ross Sea sector, Southern Ocean: representation in numerical models
900m at the gyral eastern end compare favourably with float data. On-shelf model depth-averaged west ... bathymetric constraints. Western and eastern cyclonic gyral systems separated by shallow bathymetry around 180 ... –east flow is relatively consistent with that reconstructed from longline fishing records. These flows ... have components associated with isopycnal gradients in both light and dense waters. The climate models ...
Meeting Document : WG-EMM-10/P13 : Auteur(s): G.J. Rickard, M.J. Roberts, M.J.M. Williams, A. Dunn and M.H. Smith (2010)
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THE RESEARCH PROJECT TO DIGITIZE HISTORICAL SOVIET KRILL FISHING EXPEDITION DATA
expeditions in Southern Ocean between the years of 1972-1992. The main purpose of these expeditions was to ... in the Southern Ocean ecosystem. The data covers more than 50 fishing cruise observer logbooks with ...
Meeting Document : WG-EMM-09/30 : Auteur(s): L. Pshenichnov and G. Milinevsky (Ukraine)