Search results

1. Fishery-based research in exploratory fisheries

   Abstract:  This paper summarises the data collection requirements for the exploratory fisheries ... for Dissostichus spp. and the general characteristics of the research hauls which may assist WG-FSA to ... determine the extent to which the available data may be used in developing assessments for these fisheries ...

   Meeting Document : WG-FSA-11/25 : Author(s): Secretariat

2. Estimating by-catch from CCAMLR data

   Abstract:  Quantifying the catch rates and biomass of by-catch species on CCAMLR’s fishing grounds ... is an essential component of the assessment advice prepared by WG-FSA. However, such analyses are ... problematic because the CCAMLR datasets are incomplete and have a high occurrence of ‘missing catch values’. A ... method to treat ‘missing catch values’ using estimates derived from the mean weights of by-catch species ...

   Meeting Document : WG-FSA-SAM-05/4 : Author(s): Secretariat

3. Nine years of tag-recapture in CCAMLR Statistical Subarea 48.3 – Part I: General data characterisation and analysis

   Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.3. It describes the tagging procedure, the ... information gained about biology, growth and movement of Patagonian toothfish, and explains the overlap of ... tagging length distributions with those of the landed catch and survey data. The characterisation of tag ... recapture data from Subarea 48.3 shows that the tagging programme is successful in providing substantial ...

   Meeting Document : WG-SAM-14/35 : Author(s): M. Soeffker, C. Darby and R.D. Scott (United Kingdom)

4. UK groundfish survey in Subarea 48.3 (South Georgia and Shag Rocks), January 2000

   Abstract:  A survey was conducted by the UK around South Georgia and Shag Rocks, Subarea 48.3 ... , from 11 January to 2 February 2000, using the FV Argos Galicia. The design followed similar surveys by ... the UK conducted throughout the late 1980s and 1990s. The swept area estimates of the standing stock ...

   Meeting Document : WG-FSA-00/21 : Author(s): I. Everson, D. Agnew, P. Bagley, M. Collins, T. Daw, R. Forster, T. Marlow, A. North (United Kingdom), J. Szlakowski (Poland), E. Van Wijk (Australia), S. Wilhelms (Germany) and C. Yau (United Kingdom)

5. UPDATE ON ITEMS OF INTEREST TO WG-IMAF

   Economic Zone that are relevant to the work of the IMAF working group. The bycatch of seabirds by fisheries ... within New Zealand’s EEZ in recent years that either breed or forage within the CCAMLR convention area ... (Convention Area seabirds) is detailed. This paper contains description of the recent and ongoing seabird ... mitigation trials that are underway in New Zealand. We also briefly report on the ongoing revision of the ...

   Meeting Document : WG-IMAF-09/16 : Author(s): N. Walker (New Zealand)

6. Estimating krill recruitment and its variabiliity

   Abstract:  A maximum likelihood method is developed for the decomposition of krill density at ... length data into the proportion of recruits in population sampled in a net haul survey. Preliminary ... results from a series of 5 net haul surveys in the South Atlantic and the Indian Ocean sectors of the ... 0.100. The corresponding results for two year old krill from 9 surveys are 0.552 and standard deviation ...

   Meeting Document : WG-KRILL-93/12 : Author(s): W. de la Mare (Australia)

7. Proposed expansion of research block 48.6_4 for more reliable stock assessment

   Abstract:  At WG-SAM-15, Japan indicated it would submit a revised proposal on the design of ... research block 48.6_4 to WG-FSA-15. Here we propose the westward expansion of the research block along the ... continental shelf-slope to promote sufficient utilization of the catch limit, which would enable us to ... complete planned research and support a more reliable stock assessment. The revised design may also ...

   Meeting Document : WG-FSA-15/24 : Author(s): T. Ichii, T. Namba (Japan), D.C. Welsford (Australia) and K. Taki (Japan)

8. Fishery Reports archive

   This page provides an archive of previous Fishery Reports. The most current Fishery Reports are ... available separately. Fishery Reports present the status and management of the fisheries in the CAMLR ... Convention Area and are published annually. The data is reviewed by CCAMLR's expert working groups using ... detailed data from the fisheries and fishery surveys, and the CCAMLR Scheme of International Scientific ...

   Page : Site Section: Publications

9. Chinstrap penguins alter foraging and diving behaviour in response to krill size

   changes in prey availability. Chinstrap penguins are dependent predators of Antarctic krill in the Scotia ... Sea region. Both the sizes of krill found in penguin diets and acoustic estimates of krill biomass ... have fluctuated in recent years. We therefore examined the diet of chinstrap penguins at Livingston ... dives were unexpectedly deep (up to 110m) and mean nighttime depths sometimes exceeded those from the ...

   Meeting Document : WG-EMM-07/11 : Author(s): A.K. Miller and W.Z. Trivelpiece (USA)

10. Krill length frequency distribution in Subarea 48.3 in January–April 1988 in relation to sources of its origin

    considered in the frame of hypothesis of krill resources forming from two sources: Antarctic Circumpolar ... Current and Weddell Scotia Sea water flow. It is shown, that small krill with the mode of about 33 mm is ... distributed in the coastal zone of about 7-40 miles wide, further is situated the boundary zone at the ... distance of about 30-60 miles, beyond boundary zone occurs larger krill with the mode of about 49 mm. Krill ...

    Meeting Document : WG-EMM-03/40 : Author(s): F.F. Litvinov, V.N. Shnar, A.V. Zimin and V.V. Lidvanov (Russia)

Pages