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Downward adjustments to local catch limits for the krill fishery in Subarea 48.1
Abstract: Here we compile four vignettes that, together, provide the basis for making downward ... with Article II of the Convention. Retrospective application of the decision rule to historical data ...
Meeting Document : WG-EMM-16/46 : Автор(ы): Antarctic Ecosystem Research Division, Southwest Fisheries Science Center and NOAA Fisheries
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REVISED AGE AND GROWTH ESTIMATES FOR ANTARCTIC STARRY SKATE, AMBLYRAJA GEORGIANA, FROM THE ROSS SEA
growth, greater ages at maturity (about 20 years compared with 6–11 years) and greater maximum ages (28 ... that these skates initially grow very rapidly for about five years, after which growth almost ceases ... –37 years compared with 14 years). Several pieces of circumstantial evidence support the new ...
Meeting Document : WG-FSA-08/21 : Автор(ы): M.P. Francis (New Zealand) and M.J. Gallagher (Ireland)
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Diving pattern and performance in nonbreeding gentoo penguins (Pygoscelis papua) during winter
were bimodal. Shallow dives (30 m; 55% of total number and 81% of dive time) averaged 74-105 m and 2.7 ... patterns, averaging 10-20 m at dawn and dusk and 70-90 m at midday. These results are consistent with the ... similar to that of chick-rearing birds. The only major differences are that foraging-trip frequency is 20 ... % less and stomach-content mass on return ashore 30% less in winter. We conclude that foraging activity ...
Meeting Document : WG-CEMP-92/37 : Автор(ы): T.D. Williams (United Kingdom), A. Kato (Japan), J.P. Croxall (United Kingdom), Y. Naito (Japan), D.R. Briggs, S. Rodwell and T.R. Barton (United Kingdom)
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Status of krill target strength
cause of bias in single-animal measurements, namely thresholding. Theoretical estimates for the target ... dependence of target strength on both animal size and transmit frequency, notwithstanding admitted ... shortcomings. Some recent single-animal measurements of target strength for live euphausiids and euphausiid ...
Meeting Document : WG-KRILL-92/11 : Автор(ы): K.G. Foote (Norway), D. Chu and T.K. Stanton (USA)
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Distribution of krill (Euphausia superba Dana) catches in the South Shetlands and South Orkneys
the literature are used to show that for some years, at distances of between 20 and 60 km from ... Abstract: Zones of 20 km width are defined around selected colonies of penguins distributed ... December to March was taken within 40 km of the coast, and 90% within 80 km in all years 1988-1990. In 1987 ...
Meeting Document : WG-KRILL-92/19 : Автор(ы): D.J. Agnew (Secretariat)
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Ecosystem studies carried out during the second Ukrainian Marine Antarctic Expedition in Subareas 48.2 and 48.1 in 1998
water low temperatures and great amount of icebergs (together all these factors characterize the ... navigational season of 1998 as abnormally cold), recruitment of the stock (for the first time for recent years ...
Meeting Document : WG-EMM-00/5 : Автор(ы): V. Bibik and P. Gozhik (Ukraine)
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Seabird mortality in the longline fishery for Patagonian toothfish at the Prince Edward Islands: 1996–1997
(EEZ). However, the total fishing effort is estimated, based on landings, to be between 20 and 50 ... Thalassarche chyrsostoma and Yellow-nosed Albatrosses T. chlororhynchos (together 23 %), and giant petrels ... Macronectes spp. (4 %). Extrapolating to the total fishery suggests that between 5 000 and 20 000 birds were ... . This paper summarizes the mortality of seabirds associated with this fishery during the year July 1996 ...
Meeting Document : WG-FSA-97/51 : Автор(ы): Boix-Hinzen, C., Enticott, J.W., Ryan, P.G., Wanless, R., Purves, M., Nel, D.C.
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Integrated analysis of the by-catch data in the Ross Sea toothfish fishery
significant varied across years and by SSMU and among longline gear types. The spatial-temporal heterogeneity ... the CCAMLR Article II the following activities are proposed: investigations of spatial-temporal ...
Meeting Document : WG-FSA-16/13 Rev. 1 : Автор(ы): S. Kasatkina
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Interannual variability in Antarctic krill (Euphausia superba) density at South Georgia, Southern Ocean: 1997 – 2013
, 2001-2003, 2005-2007) of high values (µ > 30 g m-2) interspersed with years (1999-2000, 2004, 2009 ... the WCB in that year. WCB krill density (µ, mean density for the area) showed several years (1997-8 ... -2010) of low density (µ < 30 g m-2). This pattern showed three different periods, with fluctuations ... every 4 to 5 years. Cross correlation analyses of variability in krill density with current and lagged ...
Meeting Document : WG-EMM-14/P04 : Автор(ы): S. Fielding, J. Watkins, P. Trathan et al.
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Inter-annual variability in krill density at South Georgia: 1997–2012
, mean density for the area) showed several years of moderate to high values (µ > 30 gm-2 ... ) interspersed with years (1999-2000, 2004, 2009-2010) of very low density (µ < 30 gm-2). Author(s): S ... krill was examined using a 15 year time series of acoustic observations undertaken in the Western Core ... one year were driving the mean krill density estimates for the WCB in that year. WCB krill density (µ ...
Meeting Document : WG-EMM-13/14 : Автор(ы): S. Fielding, J.L Watkins, P. Trathan, P. Enderlein, C. Waluda, C. Goss, G. Stowasser, G. Tarling and E. Murphy (United Kingdom)
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