Search results
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Long term variability in the diet and reproductive performance of penguins at Bird Island, South Georgia
Abstract: Inter-annual variability in diet during crèche (December to February) over 22 years ... 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 ... Inter-annual variability in diet during crèche (December to February) over 22 years (1989 ...
Meeting Document : WG-EMM-17/P02 : Author(s): C.M. Waluda, S.L. Hill, H.J. Peat and P.N. Trathan
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Temperature-dependent growth of Thysanoessa macrura: inter-annual and spatial variability
data from four separate years (1995, 1998, 2001, 2004) that varied widely in temperature and primary ... of T. macrura varied between years and water masses, ranging from-0.037 mm day-1 in Weddell Sea water in 2004 ... during all years. Growth rates were strongly correlated with temperature but were not significantly ... . We analyzed data from four separate years (1995, 1998, 2001, 2004) that varied widely in temperature ...
Meeting Document : WG-EMM-13/39 : Author(s): R.M. Driscoll, C.S. Reiss and B.T. Hentschel (USA)
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Age and growth of the Antarctic skate (Amblyraja georgiana) in the Ross Sea
. The maximum age was 14 years, but this should be regarded as a conservative estimate of longevity because ... ages at maturity of 6–7 years for males and 8–11 years for females. These estimates are near the middle ... was 14 years, but this should be regarded as a conservative estimate of longevity because ... ages at maturity of 6–7 years for males and 8–11 years for females. These estimates are near the middle ...
Meeting Document : WG-FSA-04/29 : Author(s): M.P. Francis and C. Ó Maolagáin (New Zealand)
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Report of Member’s activities in the Convention Area 1997/98 Australia
by Australia in the Convention Area during the year to 30 June 1998. Title: Report of Member’s activities ... by Australia in the Convention Area during the year to 30 June 1998. ...
Meeting Document : CCAMLR-XVII/MA/6
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Do the males of Dissostichus eleginoides grow faster, or only mature before females?
, it is concluded that the males mature for the first time at 4 years age and females at 10 years age, reaching 100 ... % maturity at 12 years age the males and 21 years age the females. Author(s): C.A. Moreno (Chile) Title: Do ... that the males mature for the first time at 4 years age and females at 10 years age, reaching 100% maturity at 12 ... years age the males and 21 years age the females. ...
Meeting Document : WG-FSA-98/16 Rev. 1 : Author(s): C.A. Moreno (Chile)
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Fishery monitoring
with CM 23-06, if in the 2018/19 fishing season they exceed 80% of the trigger level, the Secretariat ... reporting from the krill fishery in Subarea 48.1 for the 2018/19 fishing season, the Secretariat requests ... % of the trigger level and, in accordance with CM 23-06, if in the 2018/19 fishing season they exceed 80 ... of the season. In order to simplify reporting from the krill fishery in Subarea 48.1 for the 2018/19 fishing ...
Page : Site Section: Fisheries
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Diet and trophic niche of Macrourus spp. (Gadiformes, Macrouridae) in the Ross Sea region of the Southern Ocean
carnivorous. Other important prey were copepods (especially for fish with total length less than 30 cm), krill ... for fish less than 30 cm), whereas sex, fatness and bottom depth were not significant. Author(s): M.H ... carnivorous. Other important prey were copepods (especially for fish with total length less than 30 cm), krill ... of Macrourus spp. was significantly affected by location and by size of fish (especially for fish less than 30 ...
Meeting Document : WG-EMM-12/P03 : Author(s): M.H. Pinkerton, J. Forman, D.W. Stevens, S.J. Bury and J. Brown
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Demographic studies of Antarctic krill Euphausia superba Dana in the Cooperation and Cosmonaut Seas (Indian sector of the Southern Ocean)
and mortality rates. The duration of the life cycle of E.superba exceeded 5 years in the Cosmonaut Sea ... and 6 years in the Cooperation Sea. Assuming growth for only 180 days per year, growth rates ranged from 0.120 ... -0.133 mm.d-1, during the first year of life, to 0.019-0.022 mm.d-1 during the fifth year. Von ... method ranged from 0.52, during the maturation period, to 1.1-2.41, during the first and last years ...
Meeting Document : WG-Krill-94/16 : Author(s): E.A. Pakhomov (Ukraine)
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Estimating seabird by-catch in CCAMLR longline fisheries
Abstract: After many years of close to zero incidental seabird mortality in the longline fishery ... throughout the CCAMLR Convention Area, recent years have seen an increase in Subarea 48.3 and in Division ... 58.5.2. At the same time, concern has been expressed about the suitability of the method used to raise ... After many years of close to zero incidental seabird mortality in the longline fishery throughout ...
Meeting Document : WG-FSA-17/50 : Author(s): C. Darby and K. Olsson
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Temporal scales of foraging in a marine predator: implications for interpreting the distribution of prey
by short (5 rain) travel durations. In a study lasting 5 years, the distributions of travel durations ... between bouts of feeding changed between years. These changes suggested either that the structure ... and/or the spatial distribution of krill swarms varied between years. The behavior of fur seals suggested ... -scale level. Only in one year of the study (1990/91) were there indications that fur seals had ...
Meeting Document : WG-EMM-95/23 : Author(s): Boyd, I.L.