Resultados de la búsqueda
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Estimating prey consumption of the non-breeder component of an Adélie penguin population
. This paper describes the extension and parameterisation of a bio-energetics model developed to estimate ... Abstract: Estimating the consumption of prey by higher-order predators is a priority for WG-EMM ... Southern Ocean. Previous assessments of prey consumption for seabirds have focussed on breeders using data ... recorded at the breeding colonies. However, recent work suggests that the size of the non-breeder component ...
Meeting Document : WG-EMM-17/12 : Autor(es): L. Emmerson and C. Southwell
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Disentangling the influence of three major threats on the demography of an albatross community
seabirds, globally. Understanding the relative influence and compounding nature of marine and terrestrial ... threats on the demography of seabird communities is vital for evidence-based conservation. Using 20 years ... of capture-mark-recapture data from four sympatric species of albatross (black-browed Thalassarche ... probability and success. In three species (excluding the wandering albatross because of the small population ...
Meeting Document : WG-FSA-2019/34 : Autor(es): J.B. Cleeland, D. Pardo, B. Raymond, G.N. Tuck, C.R. McMahon, R.A. Phillips, R. Alderman, M.-A. Lea and M.A. Hindell
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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 2009/2010 SEASON (1 JULY 2009 – 15 AUGUST 2010)
to fight illegal fishing in the EEZs of the French Antarctic Territories uses both a maritime ... helicopters. The Osiris, a patrol vessel for the Department of Maritime Affairs, originally an illegal fishing ... the waters of the other cooperating party (French vessels in Australian waters and Australian vessels ... Government, will allow for the use of force in the near future. 2/ French EEZs at Kerguelen (58.5.1) and ...
Meeting Document : CCAMLR-XXIX/44 : Autor(es): Delegation of France
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Reports on abundance and biological information of toothfish in Division 58.4.3b by Shinsei Maru No.3 in the 2010/11 and proposal of the consecutive survey in the 2011/12
order to collect information for the stock status and biology of toothfish in the southeast sector (24 ... allocated hauls) of Division 58.4.3b (BANZARE Bank), using a commercial bottom longline vessel Shinsei Maru ... released alive) of Dissostichus spp. and other bycatch species was 12.0 tonnes in the SE sector, where the ... catch limit of 15 tonnes was set. Dissostichus spp. made up 90.3 % in terms of weight of the whole fish ...
Meeting Document : WG-SAM-11/05 : Autor(es): K. Taki, T. Iwami and M. Kiyota (Japan)
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Preliminary assessment of long-term yield of Patagonian toothfish (Dissostichus eleginoides) for the Heard Island Plateau region (CCAMLR Division 58.5.2) based on a random stratified trawl survey in May 2004
-term annual yield in the 2004/2005 CCAMLR season. This paper provides a preliminary assessment of yield ... Abstract: A survey of Patagonian toothfish, Dissostichus eleginoides,was undertaken in Division ... 58.5.2 in the vicinity of Heard Island in May 2004 to provide the information for an assessment of short ... for the area of Division 58.5.2 to the west of 79 o 20’ E using standard CCAMLR methods. It presents a ...
Meeting Document : WG-FSA-04/76 : Autor(es): C.R. Davies, T. Lamb, A.J. Constable and R. Williams (Australia)
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Breeding biology of Adélie penguin (Pygoscelis adeliae) at Edmonson Point CEMP site (Ross Sea, Antarctica): report of the first five years
the fifth year. The study site was located in the Adélie penguin (Pygoscelis adeliae) colony of ... Edmonson Point (74°20'56.7" S, 165°08'10.03" E). The aim of this research was to obtain ... data to contribute to the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR ... ) Ecosystem Monitoring Program and data on the feeding ecology of the Adélie penguin. The rationale for the ...
Meeting Document : WG-EMM-99/60 : Autor(es): S. Olmastroni, S. Corsolini, F. Pezzo, S. Focardi (Italy) and K. Kerry (Australia)
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Changes in biomass of eight species of finfish around the South Orkney Islands (Subarea 48.2) from three bottom trawl surveys
Abstract: Stocks of finfish around the South Orkney Islands (Subarea 48.2) suffered substantial ... trawl surveys of finfish biomass within the 500 m isobath of the South Orkney Islands have been ... conducted by the Federal Republic of Germany in 1985, Spain in 1991, and the United States in 1999 ... . Estimates of total stock biomass were computed for eight species that comprised 98% of survey nominal catch ...
Meeting Document : WG-FSA-99/32 : Autor(es): C.D. Jones (USA), K.-H. Kock (Germany) and E. Balguerías (Spain)
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A RISK ASSESSMENT TO ADVISE ON STRATEGIES FOR SUBDIVIDING A PRECAUTIONARY CATCH LIMIT AMONG SMALL-SCALE MANAGEMENT UNITS DURING STAGE 1 OF THE STAGED DEVELOPMENT OF THE KRILL FISHERY IN SUBAREAS 48.1, 48.2, AND 48.3.
Abstract: We used Foosa and the reference set of parameterizations developed by Watters et al ... . Implementation of Fishing Option 2 (using the subdivisions reported here) will require that the fishery mostly ... operate in pelagic SSMUs. Up to harvest rates of 0.5 x γ, this subdivision is unlikely to reduce predator ... populations to 75% or less of the abundances that might occur in the absence of fishing; the risks of such ...
Meeting Document : WG-EMM-08/30 : Autor(es): G.M. Watters, J.T. Hinke (USA) and S. Hill (United Kingdom)
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DISTRIBUTION OF KRILL AT THRESHOLD DENSITIES SUITABLE FOR FISHING IN THE ATLANTIC SECTOR: ANALYSIS OF THE 2000 SYNOPTIC SURVEY DATA
shelf SSMUs in terms of the frequency of 1nm integration units with krill densities above and below a ... range of threshold values. 2. In general pelagic SSMUs had markedly lower frequencies of fishable ... smaller for higher thresholds. 4. The contrasting probability of encountering fishable concentrations in ... viable in pelagic SSMUs. This is despite the fact that the absolute abundance of both krill and fishable ...
Meeting Document : WG-EMM-08/16 : Autor(es): S. Hill and D. Agnew (United Kingdom)
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Estimation of size at maturity and calculation of an appropriate size limit for male Paralomis formosa
Abstract: A number of weighted smoothing splines were fit to data on carapace length and size ... -specific, median chela height of Paralomis formosa. The second derivative of the spline which made the best ... tradeoff between goodness of fit and smoothness was used as an estimate morphometric size at maturity ... . Bootstrapping techniques provided a bias-corrected estimate of morphometric size at maturity (sBc) equal to 80 ...
Meeting Document : WG-FSA-96/35 : Autor(es): Watters, G.