Resultados de la búsqueda
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A brief outline of the biology of the Antarctic silverfish, Pleuragramma antarcticum Boulenger, 1902 (Nototheniidae) from the Antarctic Indian Ocean
when they reach 13-16 cm in length and 4-6 years of age. Males reach maturity at 12-18 cm in length and ... 4-7 years of age. The potential absolute and relative fertility of this species is one of the ... three relatively isolated groups. Fish aged from 0+ to 3+ years live in the epi- mesopelagic zone where ... there are macro aggregations of plankton, while fish aged from 3+ to 12+ years form near-bottom, pelagic ...
Meeting Document : WG-FSA-92/11 Rev. 1 : Autor(es): V.V. Gerasimchuk (Ukraine)
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Population dynamics of black-browed and grey-headed albatrosses Diomedea melanophris and D. chrysostoma at Bird Island, South Georgia
Island, South Georgia for 17 consecutive years (1975-1991). Over this period almost all the Grey-headed ... ) decreased. Black-browed Albatrosses follow an annual breeding cycle, with over 80% of birds successful in ... Albatross colonies decreased, at an average rate of 1.8% per annum. Although the total Black-browed ... rearing a chick and 75% of those failing to do so returning to breed the next year, 5-10% of both ...
Meeting Document : SC-CAMLR-XII/BG/21 : Autor(es): Delegation of United Kingdom
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Development of the krill stock in the elephant island region during the 1996/97 season
, indicating an average year for krill reprodution in this area, which is not the optimum starting point for a ... , representing age group 2+ and the year-class 1994/95 (proportional recruitment R2 = 0.85). The year-class 1995 ... Abstract: During December 1996 the Elephant Island standard grid was surveyed for krill and salps ... was much higher than in previous years. The krill stock was dominated by length classes around 35 mm ...
Meeting Document : WG-EMM-97/16 : Autor(es): Siegel, V.
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A descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in the Ross Sea up to 2005/06
and 88.2 since 2001 is presented. The paper updates tag-release and tag-recapture data for fish that ... for non- New Zealand vessels for the first time. However, tag data were only available for all of ... these vessels for 2005 and for about half of these vessels for 2004. A reported total of 8888 Antarctic ... . Tagging rates by area over the past three years have been in the same proportion as the catch by area ...
Meeting Document : WG-FSA-SAM-06/09 : Autor(es): A. Dunn and S.M. Hanchet (New Zealand)
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Spatial variability and power to detect regional-scale trends
Abstract: An important issue in regional-scale trend detection is the degree of concordance in ... trend between sites in relation to an average regional trend. If there is much or more variability ... precise methods of measurement and long time series of data. We used published data from repeated regional ... power for various multiple-site monitoring scenarios. Under the conservative, hypothetical scenarios we ...
Meeting Document : WG-EMM-03/47 : Autor(es): C. Southwell and L. Emmerson (Australia)
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Population dynamics of black-browed and grey-headed albatrosses Diomedea melanophris and D. chrysostoma at Bird Island, South Georgia
Island, South Georgia for 17 consecutive years (1975-1991). Over this period almost all the Grey-headed ... ) decreased. Black-browed Albatrosses follow an annual breeding cycle, with over 80% of birds successful in ... Albatross colonies decreased, at an average rate of 1.8% per annum. Although the total Black-browed ... rearing a chick and 75% of those failing to do so returning to breed the next year, 5- 10% of both ...
Meeting Document : WG-CEMP-93/06 : Autor(es): P.A. Prince, P. Rothery, J.P. Croxall and A.G. Wood (United Kingdom)
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Population identity, site-fidelity, movement ranges and preliminary estimates of abundance of southern right whales in the Antarctic Indian sector inferred from genetic markers
’ and the ‘recapture’ ranged from 3-13 years with an average at 7.3 years. Preliminary application of a ... data for ecosystem modelling studies. Genetic analyses were conducted to investigate the population ... abundance based on ‘mark-recapture’ methods in the Antarctic Indian sector (i.e., between 80°-135°E and ... during fourteen summer surveys. The DNA was extracted from each biopsy sample, sequenced for 381 ...
Meeting Document : WG-EMM-18/18 : Autor(es): L.A Pastene, M. Goto, P. Acuña, M. Taguchi, T. Hakamada and K. Matsuoka
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Longterm monitoring of krill recruitment and abundance indices in the Elephant Island area (Antarctic Peninsula)
confirmed by the present analysis. Results are compared for one (R1) and two year old (R2) age classes ... the representativeness of the study area (60°- 62°30'S and 53°- 57°30 'W) for the ... Abstract: Krill distribution and density are reviewed for the Elephant Island area with regard to ... study using randomisation tests on an analysis of variance. Author(s): de la Mare, W., Loeb, V., Siegel ...
Meeting Document : WG-EMM-96/45 : Autor(es): de la Mare, W., Loeb, V., Siegel, V.
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Entanglement of Antarctic fur seals in marine debris at Cape Shirreff and San Telmo Islets, Livingston Island, Antarctica: 1988–1997
biota, specially over individuals of A. gazella, and for this purpose we present as an annex to the ... document, a form for its completion by every Antarctic base, refuge, or camp present in the mentioned area ... results indicate that 45% of the entanglement material found in a total of 20 individuals (nine subadult ... entanglement reported for the South Georgia islands, where the most important longlining fishery in the ...
Meeting Document : SC-CAMLR-XVI/BG/33 : Autor(es): Delegation of Chile
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Krill processing factors
(1980-82). Within these papers are the fundamentals of product yields and the framework for determining ... market prices for Krill Products. Yield Estimates from round (Whole) Krill are as follows from McElroy ... (1980-82): Whole Uncooked Krill- Frozen 100% Whole Cooked Krill-Frozen 90% Whole Uncooked Krill ... Centrifuged (Gutted) Frozen 80% Krill Mince-centrifuged 60% Krill Mince-Uncentrifuged 80% Krill Tail Meat 15 ...
Meeting Document : WG-EMM-01/44 : Autor(es): D. Rogers (USA)