Resultados de la búsqueda
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Age and growth of Scotia Sea icefish Chaenocephalus aceratus (Lönnberg, 1906), from the South Shetland Islands
around the South Shetland Islands in the austral summer 2002 (January-February). Fish were caught by ... observed in other recent surveys within the same area, C. aceratus represented one of the predominant ... were estimated by counting annuli present in the sagittal otoliths, exposed by grinding and polishing ... from different institutions. The age range was 1-17 years for females and 1- 15 years for males. Von ...
Meeting Document : WG-FSA-02/77 : Autor(es): M. La Mesa, J. Ashford, E. Larson and M. Vacchi
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Conflict or co-existence? Foraging distribution and competition for prey between Adélie and chinstrap penguins
penguins and 24 chinstrap penguins were used to compare foraging distributions. In both years the diet of ... segregation. There was a significant difference in the foraging areas used by Adélie penguins between years ... in foraging distribution and breeding success suggest that in years of low resource availability ... both species was exclusively Antarctic krill (Euphausia superba) of the same size range. In a year of ...
Meeting Document : WG-EMM-02/15 : Autor(es): A.S. Lynnes, K. Reid, J.P. Croxall and P.N. Trathan (United Kingdom)
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Spatio–temporal dynamics of Antarctic krill fishery: identification of fishing hotspots
those years when the precautionary catch limit is reached. These events occur mainly in the centre of ... Abstract: Antarctic krill is a key species in the Southern Ocean food web and is also the target ... of the greatest fishery in Antarctic waters. Management of the fishery is based on a precautionary ... subarea. Despite that the fishery is operating in the Antarctic Peninsula area since 1980s, the spatial ...
Meeting Document : WG-EMM-16/52 : Autor(es): F. Santa Cruz, B. Ernst and J.A. Arata
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The biology and ecology of mackerel icefish, Champsocephalus gunnari – an Antarctic fish species that lack haemoglobin
characteristics in common, such as feeding mode and food, early life history, and growth in the first years of ... . They may grow to more than 60cm and may become 13-15 years old. However, in the vicinity of South ... , its distribution ranges from the Scotia Arc region, namely South Georgia, in the Atlantic Ocean sector ... to the Kerguelen-Heard Plateau in the Indian Ocean sector. Mackerel icefish have been heavily ...
Meeting Document : WG-FSA-96/24 : Autor(es): Everson, I., Kock, K.-H.
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Translation review of the Basic Documents and the conservation measures
Abstract: In 2018, the Secretariat undertook a comprehensive translation review of all ... of major issues identified in the conservation measures and the Basic Documents are appended, and the ... proposed changes were available for consultation between June and August. These changes will be included in ... publication of the Schedule of Conservation Measures in Force, following their adoption by the Commission at ...
Meeting Document : CCAMLR-XXXVII/BG/12 : Autor(es): CCAMLR Secretariat
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Mackerel icefish ecological indices
Abstract: Mackerel icefish have been harvested in the CCAMLR Region for over thirty years. In the ... CEMP. With that in mind the following indices are outlined that might be incorporated in the programme ... : Standing Stock, Cohort Strength and Recruitment, Natural Mortality, Length at Age 1+ and 2+ years ...
Meeting Document : WG-EMM-03/42 : Autor(es): I. Everson (United Kingdom), K.-H. Kock (Germany) and A.W. North (United Kingdom)
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AGE AND GROWTH OF SPINY ICEFISH, CHAENODRACO WILSONI REGAN, 1914, OFF JOINVILLE-D'URVILLE ISLANDS (ANTARCTIC PENINSULA)
benthic trawl carried out off Joinville-D’Urville Islands (Antarctic Peninsula) in February-March 2006 and ... polishing whole otoliths embedded in epoxy resin in moulds. The precision of age estimates between readings ... . Age at sexual maturity was estimated to be about 2 years for females and 2.5 years for males. Compared ... maturity and a considerable short life span. The fish population of C. wilsoni caught in the studied area ...
Meeting Document : WG-FSA-08/33 : Autor(es): M. La Mesa, A. De Felice (Italy), C.D. Jones (USA) and K.-H. Kock (Germany)
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An overview of a large ecosystem survey of the southwest Indian Ocean sector of the Southern Ocean (CCAMLR Division 58.4.2)
Division 58.4.2 (the South West Indian Ocean Sector of the Southern Ocean 30-80°E) in January-March 2006 ... as adopted in previous B0 surveys in the CCAMLR Area and was designed so that the results would be ... transects, between 30° and 80°E. On each transect a range of underway data were obtained and on six ... being prepared for a special Issue of Deep-Sea Research for publication in 2008. Author(s): S. Nicol, S ...
Meeting Document : WG-EMM-06/15 : Autor(es): S. Nicol, S. Kawaguchi, T. Jarvis, G. Williams, N. Bindoff, D. Thiele (Australia), J. Schwarz (Germany), A. Davidson, S. Wright, J. Gedamke and P. Thompson (Australia)
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Marine debris and entanglements at Bird Island and King Edward Point, South Georgia, Signy Island, South Orkneys and Goudier Island, Antarctic Peninsula 2013–2014
highest ever recorded in the 24 years of summer surveys and fourth highest ever recorded in 23 years of ... the lowest ever recorded in 24 years of surveys. The incidence of marine mammal entanglements was ... Point and zero at Signy Island and Goudier Island. In total, 88 items of marine debris were found in ... association with seabird colonies at Bird Island, most commonly in association with wandering albatrosses (40 ...
Meeting Document : SC-CAMLR-XXXIII/BG/31 : Autor(es): Delegation of the United Kingdom
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Short note: time series of Drake Passage Oscillation Index (DPOI) from 1952 to 1988
. A low DPOI less than 10 hPa appeared in 1967 and 1980. Intervals between the years of low DPOI were ... Abstract: Naganobu et al. (1999) had assessed variability in krill recruitment and density with ... differences across the Drake Passage, sea ice cover and chlorophyll-a in the Antarctic Peninsula area during ... westerlies were especially regarded as a key environmental index. Fluctuations in the westerlies across the ...
Meeting Document : WG-EMM-02/44 : Autor(es): M. Naganobu and K. Kutsuwada (Japan)