Search results
-
Finfish distribution and abundance in Subareas 48.1 and 48.2, 2016–2018. Research proposal for the second year
Abstract: According to the experience gained in the first phase of the research and observations ... made by WG-SAM-16, a new proposal is provided to determine the distribution and abundance of fish in ... subareas 48.1 and 48.2. In this opportunity, the study area includes the continental shelf and slope north ... : 101-200 m, 201-260 m; 261-320 m, 320-380 m, 381-440, and 441-500 m). The sampling area was divided in ...
Meeting Document : WG-FSA-16/31 : Author(s): Delegation of Chile
-
Comparison of 1981 FIBEX survey and 2000 CCAMLR survey on oceanographic variability in the Scotia Sea, Antarctica
) in order to investigate differences of oceanographic structures in the same area and summer season ... between the 1981 FIBEX survey and 2000 CCAMLR survey in the Scotia Sea, Antarctica. As a result, the ... distribution range of the cold Antarctic Surface Water less than 0°C in the 1981 FIBEX survey is clearly larger ... than the 2000 CCAMLR survey. In other words, the differences of the both surveys suggested that the ...
Meeting Document : WG-EMM-04/45 : Author(s): M. Naganobu and Y. Yoda (Japan)
-
Preliminary assessment of the South Georgia ray populations
Abstract: We modelled the ray population at South Georgia using a surplus production model ... implemented in a Bayesian framework. Catch and CPUE data were reconstructed for the time series 1985 – 2006 ... from a variety of sources, and included the consideration that since 2004 the practice of cutting rays ... off lines at the water surface should have increased survivorship of discarded rays, although this ...
Meeting Document : WG-SAM-07/11 : Author(s): D.J. Agnew, R. Mitchell, T. Carruthers, J. Roberts, R. Hillary and J. Pearce (United Kingdom)
-
Assessment models for Antarctic toothfish (Dissostichus mawsoni) in SSRU 882E including data from the 2005/06 season
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... model for Antarctic toothfish (Dissostichus mawsoni) in the SSRU 88.2E, using revised catch, CPUE, catch ... -at-age and tag-recapture data from New Zealand and all vessels. The updated reference case resulted ... different assumption of the level of natural mortality (M=0.13 y-1), and the revised length-weight and ...
Meeting Document : WG-FSA-06/48 : Author(s): A. Dunn and S.M. Hanchet (New Zealand)
-
Penguin foraging behavior in relation to the distribution of prey
Abstract: The diving behavior of 7 chinstrap penguins (Pygoscelis antarctica) (N=12,171 dives ... ) was measured concurrently with a hydroacoustic assessment of the vertical distribution and abundance ... of their primary prey, krill (Euphausia superba) in the vicinity of Seal Island, South Shetland ... migration pattern, being dispersed in the upper portion of the water column at night and more concentrated ...
Meeting Document : WG-KRILL-93/47 : Author(s): D.A. Croll, R.P. Hewitt, D.A. Demer and J.K. Jansen (USA)
-
Continuation of multi-Member research on the Dissostichus spp. exploratory fishery in 2017/18 in Division 58.4.3a by France and Japan
Abstract: In Division 58.4.3a, since 2012, research fishing has been conducted in the research ... block by two vessels using longlines: Shinsei Maru No. 3 (Japan) and the Saint André (France). The catch ... limit for Dissostichus spp. is 32 tons in 2014/2015 and the total reported catch up was 16.3 tons. For ... the last season (2015/16), the catch limit was unchanged (32 tons) but no catch up was reported due to ...
Meeting Document : WG-SAM-17/04 : Author(s): Delegations of France and Japan
-
Report of the WG-FSA Intersessional Subgroup on Sampling Catches from Longlines
Abstract: In 2001, WG-FSA asked the Intersessional Subgroup on Sampling Catches from Longlines to ... ; 2) the allocation of observer effort within longline haul and between hauls; and 3) the allocation ... subsampling methods use the hauling completed within a day as a frame, and theoretically cover all fishing ... design, which could be implemented more rigorously if the CCAMLR objective was changed from sampling 60 ...
Meeting Document : WG-FSA-02/52
-
OPERATIONAL DIFFICULTIES IN IMPLEMENTING THE CCAMLR TAGGING PROTOCOL IN DIVISION 58.4.1 IN 2007/08
Abstract: The Uruguayan-flagged longliner Banzare experienced sea-ice related, operational ... difficulties in implementing the CCAMLR Tagging Protocol in Division 58.4.1 in 2007/08. Extensive sea-ice cover ... greatly increased the transit times between research haul locations, which resulted in long soak times and ... . In brief: • The vessel started fishing in Division 58.4.1 SSRU E on 6 January 2008 but only completed ...
Meeting Document : WG-FSA-08/16 : Author(s): A.T. Lozano and O. Pin (Uruguay)
-
Development of the VME registry
Abstract: The Secretariat has proposed a work plan and budget for the development of a VME ... rectangles, including locations and taxonomic composition, is intended to be posted on the public section of ... the CCAMLR website. The registry will be based on the database structure and routines established for ... the interim VME registry, for which much of the database work has been completed. The development of ...
Meeting Document : WG-FSA-10/07 : Author(s): Secretariat
-
Influence of the quality and quantity of data from a multi-year tagging program on bias and precision of biomass estimates from an integrated stock assessment – update
Abstract: By way of simulation, this study investigated how the bias and precision of biomass ... program, in particular the effects of the size (tag size-overlap) and numbers of tagged fish, the duration ... of the tagging program, the type of auxiliary data used in the assessment, and the catch history ... emerged within this overall trend. The results show that in the early stages of the tagging program, a ...
Meeting Document : WG-FSA-12/18 : Author(s): P.E. Ziegler (Australia)