Résultats de la recherche
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KPFM2, be careful what you ask for – you just might get it
allocation of catch among the SSMUs (i.e., add seasonality, consider alternative movement hypotheses, add ... distribution of simulated catch to the distribution of historical catch). We have added a substantial number of ... management procedures that are candidates for allocating the precautionary krill catch among SSMUs. Author(s ...
Meeting Document : WG-EMM-06/22 : Auteur(s): G.M. Watters, J.T. Hinke (USA), K. Reid and S. Hill (United Kingdom)
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Using effective sample sizes to evaluate the efficiency of length samples collected by at-sea observers in the krill fishery in Subarea 48.1
Abstract: Catch at length is an important input into any stock assessment. Consequently ... , collecting length data from the catch is a task undertaken by all at sea observes in CCAMLR fisheries ... ). We used C1 effort, catch and observer data from Subarea 48.1, collected between 2010 and 2015, to ... of hauls to allow better estimates of catch at length. Author(s): N. Kelly, S. Kawaguchi, P. Ziegler ...
Meeting Document : WG-SAM-16/39 : Auteur(s): N. Kelly, S. Kawaguchi, P. Ziegler and D. Welsford
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Spatial aggregation of harvesting in Subarea 48.1, in particular during the summer and close to the coast
Abstract: We explore CCAMLR Catch and Effort data from the fishery for Antarctic krill for the ... associated level of catch has increased in Subarea 48.1 during the penguin breeding season. We explore in ... fishing aggregation comprised 3 periods of harvesting; catch rates per hour showed evidence of decline at ... was closed having reached the Subarea trigger allocation. Though the collective catch comprised 27% of ...
Meeting Document : WG-EMM-16/17 : Auteur(s): P. Trathan and S. Hill
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DISTRIBUTION AND ABUNDANCE OF ANTARCTIC TOOTHFISH IN THE ROSS SEA
, catch and effort, size distribution, and tagging data collected from the Antarctic toothfish fishery up ... predators of toothfish are most likely to occur. Of the total catch from the fishery to date of almost 19 ... % from the continental shelf of the Ross Sea. The shelf catch has been taken from three quite localised ... 88.1L (adjacent to the Ross Ice Shelf). The catch rates from the exploratory longline fishery typically ...
Meeting Document : WG-EMM-09/40 : Auteur(s): S.M. Hanchet, S. Mormede and A. Dunn (New Zealand)
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Fishing of the Patagonian toothfish (Dissostichus eleginoides) by the Chilean fleet (1991/92) in the Subarea 48.3 (South Georgia Island) and proposed TAC for the 1991/1993 season
, the fleet caught around 80% of the TAC set for this subarea. The catch and effort data and the ... . The catch lengths distributions ranged between 40 and 145 cm for males and 40 and 200 cm for females ... . The average length was estimated at 96.7 cm for males and 108.8 cm for females. The total catch was ... using two methodological approaches: pseudo-cohort analysis and DeLury’s method. The total catch ...
Meeting Document : WG-FSA-92/24 : Auteur(s): P.A. Espina, M.A. Araya and V.V. Meniconi (Chile)
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Observer activities on Japanese krill fishing vessels in the CCAMLR Convention Area
. Although the increase of expected catch of krill notified in recent years has caused concerns among some ... CCAMLR Members, the actual catch has not increased, or can be described as decreasing, thus there is no ... ) determine the level of by-catch of larval finfish, and (iii) better understand the occurrence of warp-strike ...
Meeting Document : CCAMLR-XXVI/BG/41 Rev. 1 : Auteur(s): Delegation of Japan
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An iterative model to construct an age-length key to assess the age composition of a new fishery for Dissostichus eleginoides in Chilean waters
Abstract: Traditional calculation of catch age composition estimate requires that the age-length ... possible to overcome this limitation. The catch age composition for Dissostichus eleginoides was obteined ... model (Hoenig and Heisey, 1987). We found a catch age distribution pattern wich is not significatly ...
Meeting Document : WG-FSA-92/23 Rev. 1 : Auteur(s): H. Robotham V. and Z. Young U. (Chile)
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Proposed methodology for the assessment of the exploratory fishery for Dissostichus spp. on BANZARE Bank (Division 58.4.3b)
resource in this area, and the lack of a scientific basis for setting catch limits in these areas (SC-CAMLR ... of grounds through analysis of spatial pattern in catch and effort; • Construction of standardised ... (?) to satisfy the CCAMLR decision rules. • Analysis of relative catch rates of bycatch groups and target ... species The input data for this assessment is the C2 catch and effort data held by CCAMLR for the fishery ...
Meeting Document : WG-SAM-07/8 : Auteur(s): D.C. Welsford, A.J. Constable and G.B. Nowara (Australia)
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An assessment of longlining operations for Dissostichus eleginoides on board the Chilean-registered longliner BF Cisne Verde during March–May 1997 around South Georgia (Subarea 48.3)
. Previous catch rates were used to set daily sampling effort, and accurately achieved a CCAMLR sampling ... was only 0.8% of the mean daily catch rate; total by-catch by numbers was less than 5%. Consistent ... exclusion effects may be important in determining the catch taken by longlines. Continuing decreases in size ...
Meeting Document : WG-FSA-97/41 : Auteur(s): Ashford, J.R., Everson, I.
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The annual random stratified trawl survey to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari in the Heard Island region (Division 58.5.2) for 2012
RSTS were generally high in comparison with previous years, with the total fish catch being twice as ... the long-term average, except for those of Channichthys rhinoceratus which was 10% lower. The catch of ... skates was also taken in 2012. The catch of invertebrates in the 2012 survey, 4 t, was about half that of ... for coral, with a reported catch of 0.6 t, being significantly greater than the long term average (50 ...
Meeting Document : WG-FSA-12/25 : Auteur(s): G.B. Nowara and T. Lamb (Australia)