Search results

1. Indexing maturation of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region

   and 88.2 have provided more than a decade of observations to aid in understanding the life history and ... ecology of toothfish. Updated spawning ogives for males and females support the currently used values ... . Using histological samples, a summer GSI threshold of 1% appears to be a good indicator of vitellogenic ... upcoming season. Observations of post-spawning fish on the slope indicate that some females either spawn on ...

   Meeting Document : WG-FSA-12/40 : Author(s): S. Parker and P. Marriott (New Zealand)

2. IUU Fishing in 2011/12 and development of methods to estimate IUU catches

   fishing and estimates of IUU catches, including further consideration of the recommendations of JAG.  The ... paper includes: consideration of patterns and activities associated with IUU fishing in the CAMLR ... program of work for consideration aimed at improving the quality of information available to estimate IUU ... 2011/12 and development of methods to estimate IUU catches Approval:  Approved ...

   Meeting Document : WG-FSA-12/11 Rev. 1 : Author(s): Secretariat

3. Developing high-resolution hydrodynamic models of the shelf regions around South Georgia and the South Orkney Islands

   Abstract:  Many of the key oceanographic and ecological processes that determine the structure and ... functioning of ecosystems in the regions around South Georgia and the South Orkney Islands operate over small ... scales of <10 km.  This paper reports the initiation of a project to develop high-resolution ... hydrodynamic models that will be used to examine the detailed oceanography of the South Georgia and South ...

   Meeting Document : WG-EMM-14/08 : Author(s): E.J. Murphy, E.F. Young, S.E. Thorpe, P.N. Trathan (United Kingdom) and O.R. Godø (Norway)

4. Modelling the circumpolar distribution of Antarctic toothfish using correlative species distribution modelling methods

   used to predict the circumpolar distribution of habitat suitability for Antarctic toothfish. Potential ... are the types of CCAMLR data (i.e. presence of the species and/or attributes) and modelling algorithms ... suggested and highlighted for discussion. Preliminary results are provided to demonstrate the application of ... (bathymetry and latitude) and default model settings were used. Evaluation of prediction accuracy included a ...

   Meeting Document : WG-FSA-14/65 : Author(s): L.M. Robinson, K. Reid (Secretariat)

5. Translation review of the Basic Documents and the conservation measures

   Abstract:  In 2018, the Secretariat undertook a comprehensive translation review of all ... of major issues identified in the conservation measures and the Basic Documents are appended, and the ... the next version of the Basic Documents and will be incorporated into translations of the next ... publication of the Schedule of Conservation Measures in Force, following their adoption by the Commission at ...

   Meeting Document : CCAMLR-XXXVII/BG/12 : Author(s): CCAMLR Secretariat

6. Report on a random stratified trawl survey to estimate distribution and abundance of Dissostichus eleginoides and Champsocephalus gunnari conducted in the Heard Island region (Division 58.5.2), May–June 2006

   Abstract:  Random stratified trawl surveys (RSTSs) of the distribution and abundance of demersal ... in May-June 2006 had two main aims: • to assess the abundance and size structure of juvenile and ... adult Dissostichus eleginoides on the shallow and deep parts of the Heard Island Plateau.] • to assess ... the abundance and size structure of Champsocephalus gunnari on the Heard Island Plateau This paper ...

   Meeting Document : WG-FSA-06/42 Rev. 1 : Author(s): G.B. Nowara, R. Williams and T. Lamb (Australia)

7. Stratification of catch-at-length data using tree based regression: an example using Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea

   Abstract:  This paper presents a new approach to the stratification of catch-at-length data of ... sampled catch based on the median length of Antarctic toothfish for each set using the observer length ... frequency data. The median lengths were weighted within the regression by the inverse of the variance ... regions, consisting of shallow inshore regions where predominantly smaller fish were found, to deeper ...

   Meeting Document : WG-FSA-SAM-05/8 : Author(s): N.L. Phillips, A. Dunn and S.M. Hanchet (New Zealand)

8. Spectra analysis of Drake Passage Oscillation Index (DPOI) from 1952 to 2003, Antarctica

   Abstract:  An assessment of the environmental processes influencing variability in the recruitment ... and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks ... krill recruitment and density with hypothesized environmental factors; strength of westerly winds ... , Argentina, and Base Esperanza, at the tip of the Antarctic Peninsula, sea ice cover and chlorophyll-a in the ...

   Meeting Document : WG-EMM-04/46 : Author(s): M. Naganobu and K. Kutsuwada (Japan)

9. Genetic analysis of Antarctic toothfish samples from the Southern Ocean to explore potential stock boundaries

   restriction enzyme digests of nine sub regions of the mitochondrial genome. Polymorphisms were found in four ... out of seven introns digested with the restriction enzymes, but there was no population ... differentiation among the three sea areas. While direct sequencing of cytochrome b (665 base pair) showed ... virtually no variation, sequences for ~600 bp of the left domain of the control region showed nucleotide ...

   Meeting Document : WG-FSA-04/32 : Author(s): P.J. Smith, S.M. McVeagh (New Zealand) and P.M. Gaffney (USA)

10. Performance of an acoustic sonde design

    Abstract:  The potential of multi-frequency acoustic technology for quantifying fish and plankton ... is widely recognized. At a U.S. GLOBEC workshop in 1991, one of the considered problems was measuring ... frequencies are chosen. Each frequency represents the resonant condition of a circular piston transducer with ... 10-deg beamwidth. The performance of this system is assessed through the maximum detection range of ...

    Meeting Document : WG-EMM-95/09 : Author(s): Foote, K.G.

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