Résultats de la recherche
-
CPUEs and body length of Antarctic krill density during the 1997/98 season in Area 48
winter of 1997/98 season in the Area 48. The fishing grounds were formed around the South Shetland ... -May. From late May till late June, the operation took place in the north of the South Shetland Islands ... and north east of South Georgia. Size composition differed among the areas. In the west of the ... differed among the periods. In the north east of South Georgia, single mode (approx. 37-39mm) with narrow ...
Meeting Document : WG-EMM-99/48 : Auteur(s): S. Kawaguchi (Japan)
-
Review of biological characteristics of the Antarctic toothfish (Dissostichus mawsoni) and its distribution in Antarctic waters
of D. mawsoni are mentioned only in brief. Most published materials refer to studies conducted in the ... 1970-1980s. References in current publications on new studies of this species are scarce. A list of ... toothfish (Dissostichus mawsoni) and its distribution in Antarctic waters Approval: Approved ...
Meeting Document : WG-FSA-98/37 : Auteur(s): Secretariat
-
Preliminary assessment of toothfish in Subarea 48.3
were high numbers of the 2001 cohort in commercial catches in 2009 onwards. It is likely that it is ... due to a combination of a strong 2001 cohort and a change in selectivity for the commercial fleet, but ... surveys and the stabilisation of both SSB and CPUE that a long-term yield in the region of 2 000 tonnes ... assessment of toothfish in Subarea 48.3 Approval: Approved ...
Meeting Document : WG-FSA-11/33 Rev. 1 : Auteur(s): T. Peatman, R.E. Mitchell, G. Parkes and D.J. Agnew (United Kingdom)
-
Depletion-corrected average catch: a simple formula for estimating sustainable yields in data-poor situations
yield component and an unsustainable “windfall” component associated with a one-time reduction in stock ... production, in the form of a “windfall ratio”. The DCAC is calculated as the sum of catches divided by the ... sum of the number of years in the catch series and this windfall ratio. Input information includes the ... sum of catches and associated number of years, the relative reduction in biomass during that period ...
Meeting Document : WG-SAM-11/P3 : Auteur(s): A.D. McCall
-
PROPOSAL TO MOVE THE START DATE OF THE FISHERY FOR DISSOSTICHUS ELEGINOIDES IN SUBAREA 48.3
full compliance with CM 25-02 in 2009 to fish from 26 April 2010 in the 2009/2010 fishing season ... . Vessels catching 3 birds in this period would have to stop fishing until 1 May 2010. Author(s ... ELEGINOIDES IN SUBAREA 48.3 Approval: Approved ...
Meeting Document : WG-IMAF-09/11 : Auteur(s): Delegation of the United Kingdom
-
A BRIEF DESCRIPTION OF NEW ZEALAND SCIENTIFIC OBSERVER EFFORTS IN THE CCAMLR AREA
Abstract: A brief description of New Zealand scientific observer efforts in the CCAMLR Area is ... provided. The nature and extent of observer deployments in the CCAMLR Area are briefly described (c. 500 ... sea days p.a. in three Subareas). The general training of observers through to post-voyage debriefing ... BRIEF DESCRIPTION OF NEW ZEALAND SCIENTIFIC OBSERVER EFFORTS IN THE CCAMLR AREA Approval: Approved ...
Meeting Document : TASO-09/09 : Auteur(s): Bilton, D., Smith, N.
-
REFERENCE OBSERVATIONS FOR VALIDATING AND TUNING OPERATING MODELS FOR KRILL FISHERY MANAGEMENT IN AREA 48
Abstract: In 2007 WG-SAM defined a set of reference observations for validating and tuning ... reference points for the density of krill, and the abundance of “generic” seals, penguins and whales in 1970 ... considered a definitive description of the relevant dynamics. This exercise resulted in population sizes for ... initialising models than those published in Hill et al (2007). Author(s): S. Hill (United Kingdom), J. Hinke ...
Meeting Document : WG-EMM-08/10 : Auteur(s): S. Hill (United Kingdom), J. Hinke (USA), É. Plagányi (South Africa) and G. Watters (USA)
-
Catch Uncertainty in Krill Fisheries
CCAMLR. However, given the currently reported variability in conversion factors for krill, a nominal ... reported catch of 600 000t could actually represent a catch in ‘green weight’ of 2.5 million tonnes ... . Quantifying the level of uncertainty in reported catches of krill would require information on product ... well as the product composition of catches. Author(s): Secretariat Title: Catch Uncertainty in Krill ...
Meeting Document : WG-EMM-08/46 : Auteur(s): Secretariat
-
Natural mortality rate in the mackerel icefish (Champsocephalus gunnari) around South Georgia
age structure and growth parameters are used. It is concluded that only in the three earliest years ... analyses of the data from these seasons is 0.22. It is suggested that large scale fishing was in progress ... prior to the reported commencement in 1970. Author(s): Everson, I. Title: Natural mortality rate in ...
Meeting Document : WG-FSA-97/05 : Auteur(s): Everson, I.
-
Evidence of two stocks of Champsocephalus gunnari in the South Georgia region, CCAMLR fishing Area 48.3
Abstract: In 1991, the 0 age-class of C. gunnari were sampled at Shag Rocks on 18 January, off ... -46mm and 55-87mm SL. however, off Possession Bay only one mode of 25-57mm SL was apparent. Fish in ... periods and/or growth rates. This suggests that there are two separate stocks of C. gunnari in a single ... larvae on the South Georgia shelf which is comparable with previous reports of early growth in C. gunnari ...
Meeting Document : WG-FSA-94/16 : Auteur(s): A.W. North (United Kingdom)