Résultats de la recherche
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Fishery Report 2013: Champsocephalus gunnari Heard Island (Division 58.5.2)
declaration of the Australian Fishing Zone (AFZ) in 1979. This division, located between 50°–56°S and 60°–80 ... surveys with the number of hauls (N) and the number of fish measured (n) in each year at the top of each ... there will be no commercial fishery in 2015. Future research requirements 20. There were no ... 1 80 <1 50 0 50 <1 50 <1 2002 150 3 80 <1 50 <1 50 <1 50 <1 2003 150 21 80 <1 465 <1 120 20 50 5 ...
Document : Site Section: Publications
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Towards the development of a management plan for mackerel icefish (Champsocephalus gunnari) in Subarea 48.3
large factor (assumed here to be 4), declining to normal levels again when krill return. This paper ... dropping below 20% of its unexploited median level is 0.1; (ii) Rule 2: y2 is the catch level at which ... : Probability of stock biomass dropping below 20% of the unexploited median level over a 10-year period ... zero catches there is a substantial probability of depletion of the population below 20% of its ... situation where even under conditions of no exploitation the population often drops to less than 20% of ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 63–77 : Auteur(s): Agnew, D.J., I. Everson, G.P. Kirkwood and G.B. Parkes
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Fishery Report 2014: Champsocephalus gunnari Heard Island (Division 58.5.2)
declaration of the Australian Fishing Zone (AFZ) in 1979. This division, located between 50°–56°S and 60°–80 ... each year at the top of each pane. 3 7. Only catch-weighted length-frequency data derived ... , allowing 75% escapement of biomass over two years. Future research requirements 20. There were no ... <1 2002 150 3 80 <1 50 <1 50 <1 50 <1 2003 150 21 80 <1 465 <1 120 20 50 5 2004 150 6 80 <1 360 <1 ...
Document : Site Section: Publications
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Stomach contents of sub-adult Antarctic toothfish (Dissostichus mawsoni) from the western Ross Sea, Antarctica
(Muraenolepididae) were also important. Glacial squid (Psychroteuthis glacialis) were found in about 20% of stomachs ...
Meeting Document : WG-FSA-06/27 : Auteur(s): D.W. Stevens (New Zealand)
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Report of the South Georgia groundfish survey (Subarea 48.3) in January 2006
by fish of 20-25 cm (putative 2+), but unusually large numbers of fish of ~ 50 cm were also caught to ...
Meeting Document : WG-FSA-06/51 : Auteur(s): M.A. Collins, C. Jones, J. Clark. S. Fielding, J. Slakowski, T. North, W. Reid and J. Watts (United Kingdom)
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Rajid by-catch in the longline fishery for toothfish in Subarea 48.3
Rocks and South Georgia, achieved average catch rates of over 1 ray/thousand hooks, and 20-30 rays ...
Meeting Document : WG-FSA-99/40 : Auteur(s): D.J. Agnew, J. Taylor and I. Everson (United Kingdom)
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On the possibility of practical utilisation of krill target strength TS in situ obtained on the basis of EK-500 measurements
significantly lower (20-25%) those obtained from catch analysis. Utilization of trawl and acoustic methods of ...
Meeting Document : WG-EMM-98/19 : Auteur(s): S.M. Kasatkina (Russia)
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The application of CCAMLR Ecosystem Monitoring Program (CEMP) standard methods in the Antarctic site inventory project
Inventory to detect a 10% or 20% change in a parameter with a significance level as. 01 and a statistical ...
Meeting Document : WG-EMM-97/38 : Auteur(s): Naveen, R.
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DEVELOPMENT OF EFFECTIVE MITIGATION TO REDUCE SEABIRD MORTALITY IN THE ICEFISH (CHAMPSOCEPHALUS GUNNARI) TRAWL FISHERY IN SUBAREA 48.3
mitigate such mortality. As an interim measures a vessel specific 20‐bird mortality threshold was ...
Meeting Document : WG-IMAF-09/15 : Auteur(s): B. Sullivan (BirdLife International), J. Clark (United Kingdom), K. Reid (Secretariat) and E. Reid (BirdLife International)
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Abundance of larvae and assessment of recruitment size of Carlsberg lantern fish (Electrona carlsbergi Tåning, 1932) - (family myctophidae) in Southwest Atlantic in 1989
crest between 38°30’- 45°S. and 15°- 20°W. Larvae were collected with BONGO and JUDAY nets in oblique ...
Meeting Document : WG-FSA-95/07 : Auteur(s): Nevisnky, M.M.