Resultados de la búsqueda
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Fishing gear, marine debris and oil associated with seabirds at Bird Island, South Georgia, 2002/03
such annual report. As in most previous years, more items of fishing gear (mostly longlining gear) and ... debris (mostly plastics) were found in association with wandering albatrosses than with any other species ... entanglements with longline hooks and line. Eleven cases of contamination with oil were recorded, in wandering ... , black-browed and grey-headed albatrosses. In all cases, no more than about 1-2 % of the birds’ plumage ...
Meeting Document : SC-CAMLR-XXII/BG/09 : Autor(es): Delegation of the United Kingdom
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Growth rates of Antarctic fur seals as indices of environmental conditions
weighing cross-sections of the population were compared with measured/inferred changes in the the ... growth rates in years of low krill availability. Biases reflecting changes in the component of the ... differences in growth rate can reliably be derived from differences in the slope of a linear relationship ... mass at age in each year compared to the multi-year mean, that was not dependent on assumptions of ...
Meeting Document : WG-EMM-01/20 : Autor(es): K. Reid (United Kingdom)
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Short note: Time series of Drake Passage Oscillation Index (DPOI) during 1952-2008 and its possible influence on environmental variability
Abstract: An assessment of the environmental processes influencing variability in the recruitment ... and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks ... affects the Antarctic marine ecosystem as a whole. Naganobu et al. (1999) had assessed variability in ... krill recruitment and density in the Antarctic Peninsula area with an environmental factor; strength of ...
Meeting Document : WG-EMM-08/33 : Autor(es): M. Naganobu, J. Kondo and K. Kutsuwada (Japan)
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Preliminary results of a feeding trial on the blue-eyed shag Phalacrocorax atriceps
. The otoliths identified in pellets were affected by the digestive process and consequently the fish ... species were differentialy underrepresented in number and size (length/mass). Except Gobionotothen ... gibberifrons and Nototheniops nudifrons all the species were underestimated in number (N. rossii fully). G ... that experimentally observed in other not antarctic shag species. Algae and ploychaetes were found in ...
Meeting Document : WG-CEMP-94/29 : Autor(es): R. Casaux, M. Favero, E. Barrera-Oro and P. Silva (Argentina)
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A brief outline of the biology of the Antarctic silverfish, Pleuragramma antarcticum Boulenger, 1902 (Nototheniidae) from the Antarctic Indian Ocean
species in the outer waters of Antarctica. In the Indian sector of the Southern Ocean there are at least ... three relatively isolated groups. Fish aged from 0+ to 3+ years live in the epi- mesopelagic zone where ... when they reach 13-16 cm in length and 4-6 years of age. Males reach maturity at 12-18 cm in length and ... highest for high-latitude Antarctic fish. Spawning occurs in the winter-spring period. P. antarcticum is a ...
Meeting Document : WG-FSA-92/11 Rev. 1 : Autor(es): V.V. Gerasimchuk (Ukraine)
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CAMBIO CLIMÁTICO Y ESTRATEGIA PRECAUTORIA DE PROTECCIÓN DE ESPACIOS: BARRERAS DE HIELO
Abstract: Regional climate change is now known to be well established in the Antarctic ... , particularly in the Antarctic Peninsula region. One of the most evident signs of climate change has been ice ... shelf collapse; overall, 87% of the Peninsula’s glaciers have retreated in recent decades. Ice shelf ... to return that were last present during the last interglacial, a warmer period than at present. In ...
Meeting Document : SC-CAMLR-XXX/13 : Autor(es): Delegation of the United Kingdom
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Report on Argentine CCAMLR Subarea 48.3 survey: fish
Abstract: Information on biological aspects of the finfish catches obtained in the survey of BIP ... Dr. E L Holmberg, conducted around Shag Rocks and the South Georgias Islands in April-May 2013, is ... in the shelf of the South Georgias Islands. Total lengths ranged from 4 to 55 cm, 7 to 63 cm, 9 to 51 ... structure, in a relation 1:1 in all the species analyzed. Two length-weight relationships were estimated for ...
Meeting Document : WG-FSA-13/62 : Autor(es): A. Zavatteri and A. Giussi (Argentina)
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Comparison of age readings by two otolith preparation techniques and readers
were exchanged between Russia and New Zealand ageing programmes to compare consistency in ages ... resulting four-way comparison enabled differences in preparation method to be distinguished from differences ... in interpretation of otolith banding patterns. Results suggest broad agreement in ages determined by ... each reader and with each method. However, there were enough inconsistencies in preparation technique ...
Meeting Document : WG-FSA-14/53 : Autor(es): S.J. Parker (New Zealand), A.F. Petrov (Russia), C.P. Sutton (New Zealand) and E.N. Kuznetsova (Russia)
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Report on 2015 Activities of the Southern Ocean Observing System relevant to the work of CCAMLR
Abstract: The Southern Ocean Observing System was established by SCAR and SCOR in 2011 and has ... been steadily developing its work. In this paper, we summarise the outcomes of strategic planning over ... will be important to CCAMLR in providing data relevant to conservation and fisheries in different parts ... . These are described more fully in the paper. In conclusion, we discuss the value of developing a ...
Meeting Document : WG-EMM-15/61 : Autor(es): A. Constable (Australia), O.R. Godø (Norway) and L. Newman (SOOS)
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Diet composition of Antarctic toothfish
Abstract: To identify the important prey items for pre-recruit Antarctic toothfish in the SSRUs ... fishing vessel. In the previous studies, similarities in total FA compositions and the FA profiles in ... muscle tissue of Antarctic toothfish, bycatch specimen and icefish in the stomachs indicated a trophic ... connection between the toothfish and icefish. In this study, similarities in the δ13C values δ15N values of ...
Meeting Document : WG-FSA-16/06 : Autor(es): Delegation of the Republic of Korea