Search results
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Extension to the krill-predator modelling exercise
Abstract: The krill-predator modelling calculations of Thomson and Butterworth (1995) are ... extended to take account of a number of the suggestions made at the 1995 meeting of the CCAMLR Working ... Group on Ecosystem Monitoring and Management. The resilience of the Antarctic fur seal population to ... krill harvesting is found to be strongly dependent on the estimate of the maximum annual growth rate (R ...
Meeting Document : WG-EMM-96/67 : Author(s): Thomson, R.B., Butterworth, D.S.
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Connectivity and population structure in Pleuragramma antarcticum along the west Antarctic Peninsula
, discrete populations along the Western Antarctic Peninsula (WAP), or whether the shelf circulation leads to ... , reduction in sea-ice along the WAP may lead to extinction of local populations through drastic mortality of ... early stages which are ice-dependent. Alternatively, if linked by the large-scale circulation, abundance ... preliminary data from sampling along the WAP on board the R/V Nathaniel B. Palmer, including initial ...
Meeting Document : WG-FSA-10/16 : Author(s): J. Ashford, J. Ferguson, A. Piñones, J. Torres and W. Fraser
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Progress report on the research longline fishery of Dissostichus spp. in Subarea 48.6 being jointly undertaken by Japan and South Africa: 2012/13
Abstract: The multi-year research plan that was adopted for the exploratory longline fishery in ... and South Africa during the first 6 months is presented. Two vessels participated in the fishery and ... so far they have concentrated their sampling effort in the southern section (south of 60˚S), where ... they caught a total of 162.8 tonnes of Dissostichus spp. out of the 200 tonne catch limit (Table 2 ...
Meeting Document : WG-SAM-13/05 : Author(s): R. Leslie (South Africa), K. Taki, T. Ichii (Japan) and S. Somhlaba (South Africa)
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Recent British Antarctic Survey publications relevant to the agenda of WG-EMM 2013
Abstract: WG-EMM has a broad agenda for discussions in 2013, including the following items ... related to feedback management: “review of spatial and temporal structure in the ecosystem in which the ... current Area 48 fishery operates” and “development of agreed decision-making mechanisms for the candidate ... feedback management approaches”. The British Antarctic Survey Ecosystems programme and its predecessors ...
Meeting Document : WG-EMM-13/21 : Author(s): Delegation of the United Kingdom
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Assessment models for Patagonian toothfish in Division 58.4.4, SRU C on Ob and Lena Banks for the years 1989/90 to 2012/13
Abstract: I revised the CASAL catch-at-length models for stock status assessments of Dissostichus ... eleginoides in SSRUs C in Division 58.4.4 a & b (WG-SAM-13/21) following several advices during the last ... ) instead of separated value for each year, 2)I calculated effective sample size for the proportions-at ... expected proportions, 3)I changed the tagging mortality rate estimate of 0.1 instead of 0.2 because ...
Meeting Document : WG-FSA-13/35 : Author(s): K. Taki (Japan)
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The Concept of Representativeness in MPA Design
Abstract: The purpose of this paper is to clarify the concept of “representativeness” in Marine ... application to the designation of a representative system of MPAs in the Southern Ocean. In 2005, CCAMLR ... endorsed advice from the Scientific Committee, which noted that representative areas, defined as “ areas ... the long-term ecological viability of marine systems, to maintain ecological processes and systems ...
Meeting Document : CCAMLR-XXXII/BG/14 : Author(s): Submitted by ASOC
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Report on the CCAMLR marine debris monitoring program
entanglements and hydrocarbon soilings were received for 2014 from South Africa, the United Kingdom, and Uruguay ... . Non-fishing items such as plastics, packaging materials and wood remain the most common type of debris ... items found in beach surveys. The fishing items found were mostly from longline and trawl origins ... bands found at King George Island. Overall, the amount of debris in colonies of grey-headed albatrosses ...
Meeting Document : WG-FSA-14/68 : Author(s): Secretariat
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Review of the CCAMLR regulatory framework and recommendations for streamlining fishery status
Abstract: In 2014 the Commission acknowledged the extensive developments that have taken place ... areas and requested a review of the requirements of CM 21-02 and related measures (e.g., CMs 21-01 and ... 24-01) in light of these developments. It is apparent that the nomenclature and working ‘status’ of ... individual fisheries and the regulatory framework have become somewhat disconnected, and the Scientific ...
Meeting Document : CCAMLR-XXXIV/17 Rev. 1 : Author(s): Chair of the Scientific Committee
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Update to recruitment series for Patagonian toothfish in the Heard Island region
Abstract: The recent fish survey at in the vicinity of Heard Island in 2000 has provided ... estimates of recruitment for at least one new cohort (1996) and another estimate of the 1995 cohort. The ... older cohorts are likely to be distributed more widely than the shallow part of the Heard Plateau ... , consistent with the observations from 1999. A reanalysis of all survey data from the region has shown that ...
Meeting Document : WG-FSA-00/42 : Author(s): A. Constable, R. Williams, T. Lamb and E. van Wijk (Australia)
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Some considerations for the further development of statistical summaries of CEMP indices
Abstract: A potential method is presented for combining data collected as part of the CCAMLR ... ecosystem monitoring programme (CEMP) into a single index for each of the predator, prey and environment ... parameters. The proposed method is based on the usual theory of multivariate statistics and takes into ... account the covariance between parameters. The power of the statistical procedure recently adopted by WG ...
Meeting Document : WG-EMM-Stats-97/07 : Author(s): de la Mare, W.K.