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 ... species. Overall, 357 specimens ranging from 13 and 67 cm (TL) were selected for the present study. Ages ... were estimated by counting annuli present in the sagittal otoliths, exposed by grinding and polishing ...
Meeting Document : WG-FSA-02/77 : Autor(es): M. La Mesa, J. Ashford, E. Larson and M. Vacchi
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Genetic variation among populations of the Antarctic toothfish: evolutionary insights and implications for conservation
with over 70% of the world’s fish stocks being fully exploited and in many cases overexploited. On top ... of this, the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) has ... granted commercial fishing permits in the most remote marine environment on earth, the high latitude ... Southern Ocean. The primary target of these new commercial fishing ventures is the large pelagic ...
Meeting Document : WG-FSA-01/69 : Autor(es): R.W. Parker, K.N. Paige and A.L. DeVries (USA)
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A proposal for a research plan for the exploratory longline fishery for Dissostichus spp. in 2013/14 in Division 58.4.3a
to participate in this exploratory fishery over the next three years in order to achieve a robust ... paper aims to present a research plan for 2013/2014 that takes into account the remarks made during the ... WG-FSA 2012 and to progress on modeling tools in order to improve the estimation of current biomass ... . An update of the assessment of Dissostichus eleginoides using a CASAL model and a simple Petersen ...
Meeting Document : WG-FSA-13/04 : Autor(es): A. Rélot-Stirnemann - Submitted on behalf of France
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Long term variability in the diet and reproductive performance of penguins at Bird Island, South Georgia
present in 89 % of samples and were the main prey (> 50 % by mass) in 10 years of the study. Antarctic ... and were the main prey in 12 years, with Champsocephalus gunnari and Lepidonotothen larseni the most ... frequently recorded species, in 51 % and 33 % of samples respectively. The energy or mass of krill in the ... diet was the most reliable predictor of breeding success (the number of chicks fledged per breeding ...
Meeting Document : WG-EMM-17/P02 : Autor(es): C.M. Waluda, S.L. Hill, H.J. Peat and P.N. Trathan
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Glider-based estimates of Antarctic krill in Bransfield Strait, and the West shelf off Livingston Island, Antarctica
biomass assessments of Antarctic krill (Euphausia superba) in the Bransfield Strait and the west shelf of ... those from ship-based surveys historically conducted by the U. S. Antarctic Marine Living Resources ... (AMLR) Program at several temporal and spatial scales to explore the feasibility of using gliders to ... replace vessel-based biomass surveys. In the Bransfield Strait, glider-based biomass density estimated ...
Meeting Document : WG-EMM-2019/13 : Autor(es): C. Reiss, A. Cossio, G. Cutter, J. Walsh and G. Watters
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Examination of the CCAMLR toothfish GLM
Abstract: Various elements of the Generalized Linear Model (GLM) used to standardise toothfish ... CPUE in Subarea 48.3 are investigated. Problems with crossover between the essentially summer fishery ... of 1992-1993 prosecuted by Russian vessels and the winter fishery of 1995 onwards prosecuted by other ... nationalities, coupled with the existence of the experimental fishery in 1994, lead us to suggest that future ...
Meeting Document : WG-FSA-98/35 : Autor(es): G.P. Kirkwood and D.J. Agnew (United Kingdom)
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Results from the groundfish survey conducted in CCAMLR Subarea 48.3 in January/February 2011
Abstract: The 2011 groundfish survey took place at South Georgia and Shag Rocks on the FV Sil ... between the 27th January and 6th February 2011. 87 random hauls were completed, with good coverage across ... the shelf. Catch-weighted length frequencies of mackerel icefish indicated that 3+ sized fish ... tonnes. Euphausiidae was the dominant prey item in the mackerel icefish diet with increased dietary ...
Meeting Document : WG-FSA-11/29 : Autor(es): J. Brown, S. Gregory, K. Brigden, R. Benedet, O. Hogg, P. Brewin and L. Featherstone (United Kingdom)
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To the problem of distribution of different species of toothfishes Dissostichus
Abstract: According to the results of the long-term studies (1967–1991) in expeditions to the sub ... -Antarctic and Antarctic waters of the Indian Sector of the Southern Ocean, distribution areas of the ... Patagonian and Antarctic toothfish are clearly cut. It was concluded that the areas of these toothfish ... species were not overlapped in the area under review. Author(s): Prutko, V.G. Title: To the problem of ...
Meeting Document : WG-FSA-97/20 : Autor(es): Prutko, V.G.
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Annual variation in the timing of reproduction in Antarctic fur seals (Arctocephalus gazella) at Bird Island, South Georgia
Abstract: The arrival of Antarctic fur seals at a breeding beach on Bird Island. South Georgia ... established breeding territories on the beaches in anticipation of the arrival of the cows. Male arrival ... significantly later in 1984 and 1987 than in 1983, 1985 or 1986. The late arrival of both males and females in ... 1987 is attributed to unusually severe climatic conditions during the preceding winter, The late ...
Meeting Document : WG-CEMP-90/39 : Autor(es): C.D. Duck (United Kingdom)
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Deployment of research hauls in the exploratory fisheries for Dissostichus spp. in Subareas 48.6 and 58.4 in 2009/10
Abstract: ABSTRACT Prior to the 2009/10 fishing season, the Secretariat allocated starting ... positions for research hauls in the exploratory fisheries in Subareas 48.6 and 58.4 (except on BANZARE Bank ... were positions were specified in Conservation Measure 41-07). For each of the 12 notifying vessels, up ... accordance with the conservation measures and allocated positions. Overall the vessels adhered to the ...
Meeting Document : WG-SAM-10/04 : Autor(es): Secretariat