Search results
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Performance of an acoustic sonde design
macrozooplankton and micronekton. It was concluded that in order to survey animals in the size range 0.5-5 cm ... and heat generation in ceramic elements, isotropic ambient noise, and detection threshold of 20 dB. Target ... and micronekton. It was concluded that in order to survey animals in the size range 0.5-5 cm, it would ... in ceramic elements, isotropic ambient noise, and detection threshold of 20 dB. Target strength is treated ...
Meeting Document : WG-EMM-95/09 : Author(s): Foote, K.G.
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Research plan for the exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1, 58.4.2 and Subarea 48.6 in 2014/2015 (including CTD data in 88.1, 88.2)
in Division 58.4.1, 58.4.2 and Subarea 48.6 from 2014/2015 season to 2018/2019 using Korean commercial bottom ... in Division 58.4.1, 58.4.2 and Subarea 48.6 from 2014/2015 season to 2018/2019 using Korean commercial bottom ...
Meeting Document : WG-SAM-14/21 : Author(s): Delegation of the Republic of Korea
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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
icefish population structure, abundance and yield for the area of Division 58.5.2 to the west of 79° 20 ... 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 ... population structure, abundance and yield for the area of Division 58.5.2 to the west of 79° 20&rsquo ...
Meeting Document : WG-FSA-13/23 : Author(s): D.C. Welsford (Australia)
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Preliminary tag-recapture based population assessment of Antarctic toothfish (Dissostichus mawsoni) in Subarea 48.4
series and harvest rate of γ = 0.038, implies a 2019/20 yield of 45 tonnes using the 5-year average ... rate of γ = 0.038, implies a 2019/20 yield of 45 tonnes using the 5-year average biomass ... from tagging returns to average 1109 tonnes since 2010, with a five-year (2015-2019) average biomass ... returns to average 1109 tonnes since 2010, with a five-year (2015-2019) average biomass of 1187 tonnes ...
Meeting Document : WG-FSA-2019/27 : Author(s): T. Earl and A. Riley
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A preliminary assessment of mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on recent survey results
icefish population structure, abundance and yield for the area of Division 58.5.2 to the west of 79 o 20 ... ’ E using standard CCAMLR methods. A pattern of 5 year classes being present simultaneously ... population structure, abundance and yield for the area of Division 58.5.2 to the west of 79o 20&rsquo ... ; E using standard CCAMLR methods. A pattern of 5 year classes being present simultaneously ...
Meeting Document : WG-FSA-12/26 : Author(s): D.C. Welsford (Australia)
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Preliminary assessment of Champsocephalus gunnari on the Heard Island Plateau (Division 58.5.2) based on a survey in May 2002
was not significantly different from previous years but the one-sided lower 95% confidence bound was greater than ... of mostly three and four year old fish in May 2002. Given the size of the fish, the expectation from current ... estimates of length at age parameters would be for most of the fish to be three year olds. However, given ... the abundance of fish in the population and the age structure of fish last year, it would be more reasonable ...
Meeting Document : WG-FSA-02/47 : Author(s): A.J. Constable, R. Williams and T. Lamb (Australia)
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Habitat partitioning in Antarctic krill: spawning hotspots and nursery areas
and extracted data spanning 41 years (1976-2016) from the existing KRILLBASE-abundance and KRILLBASE-length ... has been suggested to occur when densities are 39 exceptionally high during years of strong ... and extracted data spanning 41 years (1976-2016) from the existing KRILLBASE-abundance and KRILLBASE-length ... has been suggested to occur when densities are 39 exceptionally high during years of strong ...
Meeting Document : WG-EMM-2019/20 : Author(s): F. Perry, A. Atkinson, S.F. Sailley, G.A. Tarling, S.L. Hill, C.H. Lucas and D.J. Mayor
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Assessment models for Patagonian toothfish in research block 5843a_1 of Division 58.4.3a, Elan Bank
for the years 2004/05 to 2012/13 following the recommendation during the last WG-SAM meeting. The two models ... events before 2008, and 2) R.1 model including all tagging events (years 2005-2012). These models were ... between the two models were set as follows: year class strength (YCS) was fixed; parameters of ALK were ... assessments of Dissostichus eleginoides in research block 5843a_1 in Division 58.4.3a for the years 2004/05 ...
Meeting Document : WG-FSA-14/22 : Author(s): K. Taki (Japan)
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Analysis of spatial and temporal structure in long-term krill fishery in the Area 48 and its relation to climate variability
observation period. It was shown that over 2006-2011years the observed shift of the fishing seasons towards ... which can impact on fishery structure in years to come. Climate changes can become the reason ... regime switching in the years to come. Author(s): P. Gasyukov and S. Kasatkina (Russia) Title: Analysis ... that over 2006-2011years the observed shift of the fishing seasons towards fall-winter months ...
Meeting Document : WG-EMM-12/50 : Author(s): P. Gasyukov and S. Kasatkina (Russia)
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Seabird mortality in the Patagonian toothfish longline fishery around the Prince Edward Islands, 1996–2000
, during the first year, when lines were set during the day and night, a significant number of albatrosses ... away from the islands over the years. We estimate that the combined impact of sanctioned and IUU ... longline fishing around the Prince Edward Islands over the past four years, could have resulted in close ... , during the first year, when lines were set during the day and night, a significant number of albatrosses ...
Meeting Document : WG-FSA-01/8 : Author(s): D.C. Nel, P.G. Ryan and B.P. Watkins (South Africa)