Search results
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Review of identity and biology of species of the family Macrouridae, from the CCAMLR fishery in the Ross Sea, Antarctica
males is 12 years and 46 cm TL, for females it was 14 years and 50 cm TL. Author(s): P.M. Marriott ... males is 12 years and 46 cm TL, for females it was 14 years and 50 cm TL. ...
Meeting Document : WG-FSA-02/32 : Author(s): P.M. Marriott and P. McMillan (New Zealand)
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A preliminary assessment of mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2014 random stratified trawl survey
standard CCAMLR methods. A pattern of multiple year classes being present simultaneously in the population ... ; E using standard CCAMLR methods. A pattern of multiple year classes being present simultaneously ...
Meeting Document : WG-FSA-14/44 : Author(s): D.C. Welsford (Australia)
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A RE-ANALYSIS AND UPDATE OF THE ANTARCTIC KRILL BIOMASS IN THE SOUTH SHETLAND ISLANDS, THROUGH 2011
-based estimates of krill density and recruitment are recalculated for the years 1996 through 2011 ... that 2011 was a year of good recruitment, following two years of low recruitment. Krill biomass ... estimates of krill density and recruitment are recalculated for the years 1996 through 2011. Recent changes ... that 2011 was a year of good recruitment, following two years of low recruitment. Krill biomass ...
Meeting Document : WG-EMM-11/26 : Author(s): A. Cossio, C. Reiss and R. Driscoll (USA)
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Interannual variability of polynya extent in the Antarctic Ocean
like a pulse wave. In the whole Antarctic Ocean, peak years of polynyas extent are in the 1981/82 (from ... July 1981 to June 1982), 1991/92 and 1995/96. In the Antarctic Peninsula area, peak years are in 1980 ... Antarctic Ocean, peak years of polynyas extent are in the 1981/82 (from July 1981 to June 1982), 1991/92 ... and 1995/96. In the Antarctic Peninsula area, peak years are in 1980/81, 1987/88 and 1992/93. ...
Meeting Document : WG-EMM-01/34 : Author(s): M. Naganobu and K. Segawa (Japan)
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Analysis of the diet of Champsocephalus gunnari in Subarea 48.3, Dr E. Holmberg survey, February 1995
(also at Shag Rocks), close to the values reported for years of krill scarcity. While no krill ... years of high abundance, but above than in 1994. Author(s): Marschoff, E., Barrera-Oro, E., Casaux ... to the values reported for years of krill scarcity. While no krill aggregations were found in the South Georgia ... South Georgia in the 1995 summer season, was somewhat below the historical years of high abundance ...
Meeting Document : WG-FSA-95/36 : Author(s): Marschoff, E., Barrera-Oro, E., Casaux, R.
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A preliminary assessment of mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2013 random stratified trawl survey
in both abundance and biomass. Two scenarios for harvest are presented – a typical two year projection ... of the population, and a projection accounting for the fact that the abundant 3+ year class is likely ... in both abundance and biomass. Two scenarios for harvest are presented – a typical two year ... projection of the population, and a projection accounting for the fact that the abundant 3+ year class ...
Meeting Document : WG-FSA-13/23 : Author(s): D.C. Welsford (Australia)
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Modifications to the Generalised Yield Model in 2004, version GYM501E.EXE
not affect the assessments undertaken in recent years. This paper presents the nature of the error ... at the nominated ‘recruitment age’ (age 4 for toothfish) in each year. The first year in the time series ... specifically for the case of surveys observing fish of ages one year younger than the recruitment age ... and greater. This calculation needed to be made general to allow for many years younger than the recruitment ...
Meeting Document : WG-FSA-04/91 : Author(s): A.J. Constable (Australia)
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Distribution of krill (Euphausia superba Dana) catches in the South Shetlands and South Orkneys
to March was taken within 40 km of the coast, and 90% within 80 km in all years 1988-1990. In 1987 and 1988 ... are used to show that for some years, at distances of between 20 and 60 km from predator colonies catches ... within 40 km of the coast, and 90% within 80 km in all years 1988-1990. In 1987 and 1988 75% of the catch ... years, at distances of between 20 and 60 km from predator colonies catches in January and February may ...
Meeting Document : WG-KRILL-92/19 : Author(s): D.J. Agnew (Secretariat)
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Age-length key for Champsocephalus gunnari from Subarea 48.3, Dr Eduardo Holmberg survey, February/March 1994
Rocks, a large concentration of fish belonging to age groups 2 (90%) and 3 (10%) was found. The length ... and, the mean lengths of age groups 1-2. Such correspondence was also obtained for age group 3 when ...
Meeting Document : WG-FSA-94/11 : Author(s): E. Barrera-Oro, E. Marschoff and R. Casaux (Argentina)
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Results of E.L. Holmberg 1995 fish survey in Subarea 48.3
aggregation of stations in a nested ANOVA model. An increase over last year's values was observed ... of the younger fraction (below 4 years: 99.3% at the South Georgia Islands and 93.4 % at Shag Rocks). Along ... . Plankton samples contained krill more often than last year and an hydroacoustical survey for krill which ... aggregations in larger quantities than in last years survey. Author(s): Marschoff, E., Madirolas ...
Meeting Document : WG-FSA-95/35 : Author(s): Marschoff, E., Madirolas, A., Balestrini, C., Tossonotto, G., Gonzalez, B., Calcagno, J.