Search results
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Ross Sea Bioregionalisation, Part II: Patterns of co-occurrence of mesopredators in an intact polar ocean ecosystem
and Snow petrel. The apex predators, Leopard Seal and Killer Whale ecotype A/B, were not included ... mesopredator species distributions at a 5km/pixel scale, using environmental data and species presence ... localities from at-sea surveys and other sources. A machine learning, “maximum entropy” modeling algorithm ... used to identify areas of importance to species in a conservation prioritization framework (Zonation ...
Meeting Document : WG-EMM-10/12 : Author(s): G. Ballard, D. Jongsomjit and D.G. Ainley (USA)
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Comparison of estimators of effective sample size for catch-at-age and catch-at-length data using simulated data from the Dirichlet-multinomial Distribution
a multinomial likelihood when there is extra-multinomial heterogeneity in age class or length class ... (D-M) distribution with marginal class probabilities generated using a simple age-structured model ... , including a method based on a conditional profile maximum likelihood estimate of the D-M dispersion ... incorporates process error in addition to haul-level heterogeneity while giving a marginal variance ...
Meeting Document : WG-SAM-07/7 : Author(s): S.G. Candy (Australia)
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Seasonal and interannual variability of krill, salp and other zooplankton populations in the northwest Antarctic Peninsula region: summer 2001 in relation to the Long-Term AMLR Data Set
Island region during 18-30 January 2001 (Survey A, 101 stations) and 12 February-12 March 2001 (Survey D ... , 96 stations). Krill, salps and other zooplankton were collected at each station using a 180 cm Isaacs ... February-March reflected normal seasonal spawning in 2000/2001. This is the third year in a row that ... stage indicated a curtailed production season. A dramatic 60% abundance decrease between the two surveys ...
Meeting Document : WG-EMM-01/45 : Author(s): V. Loeb (USA)
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COMPARISON OF THE PRECISION OF DIRECT VERSUS AGE LENGTH KEY METHODS OF ESTIMATING CATCH-AT-AGE PROPORTIONS
Abstract: Catch-at-age proportions can be estimated directly using a simple random sample (SRS ... to the SRS of ages, which have also been measured for length (the age-length sample), a large SRS ... otoliths removed until a fixed number of fish in each length bin have been obtained and further sampling ... age-length sample compared to a SRS scheme. Formulae for the precision of the estimates of proportion ...
Meeting Document : WG-FSA-09/22 Rev. 1 : Author(s): S.G. Candy (Australia)
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Marine pollution
cooperation in areas of overlapping interests and competencies. At CEP XI in 2008 the CCAMLR Observer gave a ... presentation on the work of CCAMLR. This was regarded as highly valuable. A reciprocal CEP presentation to SC ... -CAMLR was encouraged, with a view to institutionalising reciprocal presentations at periodic intervals ... . Such presentations would contribute towards a clearer understanding of the respective objectives and ...
Page : Site Section: The Organisation
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WS-BSO-07
-BSO-07/11 Bioregionalisation: some key questions and considerations S. Grant, A. Clarke, P.N. Trathan ... bioregionalisation of the Southern Ocean M. Pinkerton, B. Sharp and J. Leathwick (New Zealand) WS-BSO-07/8 A scheme ... Indian Ocean sector (Area 58) K. Martin-Smith, P. O’Brien, B. Raymond and A. Constable (Australia) WS-BSO ... -07/P1 Conserving pattern and process in the Southern Ocean: designing a Marine Protected Area for the ...
Meeting
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Integrated analyses of circumpolar climate interactions and ecosystem dynamics in the Southern Ocean (ICED)
Abstract: ICED is a multidisciplinary, international initiative recently launched in response to ... -term goal of ICED is to develop a coordinated circumpolar approach to understand climate interactions ... developing this initiative, and a key aim of ICED is to link with CCAMLR scientists to develop management ...
Meeting Document : WG-EMM-06/26 : Author(s): E.J. Murphy (United Kingdom), E. Hofmann (USA) and R. Cavanagh (United Kindom)
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Fish stock assessment survey in Subarea 48.3, 2004
bottom trawl survey the research was extended by a week in order that further investigations into the use ... information on the target strength and length composition of the pelagic component of the icefish biomass. A ... continued emphasis on providing information on bycatch species gave a further key aim to the survey. Author ...
Meeting Document : WG-FSA-04/85 : Author(s): M. Belchier, M. Purves, M. Collins, S. Hawkins, T. Marlow, R. Mitchell, J. Szlakowski and J. Xavier (United Kingdom)
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Documentation for the CCAMLR survey database and length-density analysis
Abstract: Over the past two years, the CCAMLR Data Centre has undertaken a major overhaul of the ... WG-FSA. Historically, trawl survey data and commercial trawl data were managed as a single dataset ... document should be considered as a working draft, to be added to, and updated, as the database and analyses ...
Meeting Document : WG-FSA-00/11 : Author(s): Secretariat
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Examination of the CCAMLR toothfish GLM
different sizes on the shelf slope. A winter GLM is described which includes a depth factor, and is used in ... a discussion of the recent declines in CPUE seen in Subarea 48.3. Author(s): G.P. Kirkwood and D.J ...
Meeting Document : WG-FSA-98/35 : Author(s): G.P. Kirkwood and D.J. Agnew (United Kingdom)