Search results
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Population dynamics of the wandering albatross Diomedea exulans at Marion Island: long-line fishing and environmental influences
Abstract: The subantarctic Prince Edward Islands (Marion and Prince Edward) support the largest ... breeding population of the Vulnerable wandering albatross Diomedea exulans. The numbers of birds breeding ... in the Marion Island population has fluctuated over the past three decades and appears to be the ... result of both real changes in the size of the population and changes in the proportion of the population ...
Meeting Document : WG-EMM-03/11 : Author(s): D.C. Nel, F. Taylor, P.G. Ryan and J. Cooper (South Africa)
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Report on the independent review of CCAMLR’s data management systems
as part of the on-going work of the Commission to ensure that CCAMLR’s information assets are ... data access and use, and in an efficient manner to authorised parties. The review focused on ... determining risks that are relevant to the organisation’s information assets, assessing system controls, and ... mitigating identified risks using an appropriate international standard as a benchmark. The review ...
Meeting Document : CCAMLR-XXX/05 : Author(s): Secretariat
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CCAMLR conservation measures: review of the numbering system
since 1984. However, the use of consecutive numbers does not provide information on topics covered by ... the measures, nor does it provide an implicit reference to the history of the measures. An improved ... numbering system is proposed which allows measures to be traced over the course of their history, contains ... information on the topics addressed by the measures, maintains a notation familiar to CCAMLR, and allows for ...
Meeting Document : CCAMLR-XXI/15 : Author(s): Secretariat
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Distribution of the Soviet fishing fleet and catches (CPUE) in Subdivision 48.3 during 1986–1990
Abstract: Analysis of the fishing fleet operation is one of preconditions of krill fishery small ... -scale management units determination. In this work the available data of haul by haul catch statistics ... for the Soviet krill fishery in subdivision 48.3 for 1986-1980 (15 thousand hauls) were analyzed ... . During the fishing season from April to September two basic fishing grounds with a quazi-stationary ...
Meeting Document : WG-EMM-02/63 Rev. 1 : Author(s): V.A. Sushin, P.C. Gasiukov, A.V. Zimin and S.M. Kasatkina (Russia)
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Subgroup on Assessment Methods: Report to the Working Group on Fish Stock Assessment 2002
Abstract: Over the last two years, discussions in WG-EMM, WG-FSA and the Scientific Committee ... . WG-FSA noted (paragraph 11.3, WG-FSA 2001) that there are substantial difficulties added to the work ... of the assessment subgroup when new quantitative methodologies are introduced and incorporated into ... assessments undertaken during the time of a single meeting of WG-FSA. Issues related to the current procedures ...
Meeting Document : WG-FSA-02/80 : Author(s): A.J. Constable (Subgroup Coordinator)
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 88.2C–G for the years 2002–03 to 2010–11
Abstract: This paper describes the first Bayesian sex and age structured population stock ... , and G (SSRUs 88.2C–G). For modelling purpose, we split the region into two fisheries: south of 70.2° S ... fish are caught and most of the effort has been concentrated. For our reference case we used a selected ... trips data set and fitted to tag and fishery data from the northern fishery only. Model fits to the data ...
Meeting Document : WG-FSA-11/43 : Author(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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DEFINING TAG RATES AND TACS TO OBTAIN SUITABLY PRECISE ABUNDANCE ESTIMATES FOR NEW AND EXPLORATORY FISHERIES IN THE CCAMLR CONVENTION AREA
. With respect to the tagging-based abundance estimator, we use the Lincoln-Petersen method and derive a ... formula that gives the expected coefficient of variation of the abundance estimate in terms of the number ... of releases and recaptures, which can in turn be expressed in terms of the tagging rate per tonne ... caught, the catch taken and the postulated underlying exploitable biomass. This relationship is shown to ...
Meeting Document : WG-SAM-08/06 : Author(s): R.M. Hillary (UK)
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Monitoring Antarctic toothfish (D. mawsoni) recruitment in the southern Ross Sea
survey monitoring the recruitment of Antarctic toothfish (Dissotichus mawsoni) in the southern Ross Sea ... was started in 2012. The first year established the feasibility of carrying out a random stratified ... longline survey from a fishing vessel platform, the FV San Aotea II, to monitor recruiting toothfish using ... standardised gear in a standardised manner. It also established the appropriate depths and stratum boundaries ...
Meeting Document : WG-FSA-17/57 : Author(s): S.M. Hanchet, S. Mormede, S. Parker, K. Large, A. Dunn and B. Sharp
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Analysis of krill trawling positions north of the South Shetland Islands (Antarctic Peninsula area), 1980/81–1999/2000
Abstract: Inter- and intra-annual variability of commercial krill trawling positions for the 1980 ... /81 to 1999/2000 seasons in the area to the north of South Shetland Islands were analyzed in relation ... to biological and environmental factors. Commercial fishing perations concentrated on the outer shelf ... in the early 1980’s, along the shelf slope in the mid- to late 1980’s, and were highly variable, from ...
Meeting Document : WG-EMM-01/35 : Author(s): S. Kawaguchi and K. Segawa
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Information on illegal fishing in Statistical Area 58 Assessment of illegal fishing in French waters around Kerguelen and Crozet Islands Report of observations and inspections in the CCAMLR Area 2011/2012 season (1 July 2011 – 15 July 2012)
Abstract: This document summarises French observations of illegal fishing for the past year ... . The geographical area covered in this report comprises Statistical Subarea 58.6 and Divisions 58.5.1 ... and 58.5.2 (which include the Crozet, Kerguelen and Heard and McDonald EEZs), Statistical Divisions ... 58.4.3, 58.4.4, (BANZARE, Elan, Lena and Ob Banks) and Subarea 58.4.1. Vessels on the CCAMLR black list ...
Meeting Document : CCAMLR-XXXI/35 : Author(s): Délégation française