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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Otolith microstructure of juvenile mackerel icefish (Champsocephalus gunnari) (Channichthyidae) in the South Georgia area
year classes arising from spawning in the 1999/2000 and 2000/01 split-years. The mean width of daily ... year class lasted four months. This was estimated based on a retrospective count of daily increments ... . TL varied from 5.5 to 10.4 cm for fish in their first year (120–250 days) to 12.5–13.3 cm in 1-year ... fish between consecutive year classes. File: 10shcherbich.pdf ... the year is de- fi ned as the period from 1 July to 30 June of the next year (Shcherbich, 1975). From ... ) and 2000/01 (20 specimens) split-years. The 1999/2000 year class included 1-year-old fi sh (1+), which ... survey of juveniles in February–March 2002 on the South Georgia shelf. Juvenile fi sh comprised two year ... classes arising from spawning in the 1999/2000 and 2000/01 split-years. The mean width of daily otolith ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 173–181 : Author(s): Shcherbich, L.V
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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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Indicative trends in by-catch of sharks in the CAMLR Convention Area
increased during the last 10-year period, with most of the by-catch reported in Division 58.5.2 ... be useful during consideration of CCAMLR-XXXVII/30 by the Scientific Committee and Commission. Author ... by-catch may have increased during the last 10-year period, with most of the by-catch reported in Division ... be useful during consideration of CCAMLR-XXXVII/30 by the Scientific Committee and Commission. ...
Meeting Document : WG-FSA-18/63 Rev. 1 : Author(s): C.D. Jones
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Bycatch of fishes captured by the krill fishing vessel Chiyo Maru No. 2 in Statistical Area 58 (January to March 1995)
, an average of about 20 fish were caught per ton of krill, and an average of about 23 fish were caught per ... of about 20 fish were caught per ton of krill, and an average of about 23 fish were caught per hour ...
Meeting Document : WG-FSA-95/40 Rev. 1 : Author(s): Watters, G.
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Some notes on by-catch of fishes and salps caught by the fishery vessel Niitaka Maru in the vicinity of the South Shetland Islands (January to February 1999)
hauls and those estimated value was 20 to 3560 ind./t of krill. By-catch fishes fed on Thysanoessa ... estimated value was 20 to 3560 ind./t of krill. By-catch fishes fed on Thysanoessa macrura and Euphausia ...
Meeting Document : WG-EMM-00/54 : Author(s): T. Iwami, S. Kawaguchi and M. Naganobu (Japan)
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Krill associated ecosystem studies in the western Indian Ocean sector of the Southern Ocean during austral summer
summer 2019-20. The proposed objectives are to to understand the distribution and biomass of krill ... 2019-20. The proposed objectives are to to understand the distribution and biomass of krill ...
Meeting Document : WG-EMM-2019/79 : Author(s): B.R. Smitha, H. Manjebrayakath, C.R. Asha Devi, N. Saravanane and M. Sudhakar
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Progress report on the Weddell Sea Research Program Stage II
, 2014. A total of 34 longlines were set: the Option I – 10+20 and the Option II – 4 at the depths ... of 34 longlines were set: the Option I – 10+20 and the Option II – 4 at the depths ranging ...
Meeting Document : WG-SAM-14/05 : Author(s): A.F. Petrov, I.I. Gordeev, S.V. Pianova and E.F. Uryupova (Russia)