Resultados de la búsqueda
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Recent population estimates and trends in numbers of albatrosses and giant petrels breeding at the sub-Antarctic Prince Edward Islands
and trends in numbers of albatrosses and giant petrels breeding at the sub-Antarctic Prince Edward ... Abstract: The second mid-summer survey of surface-nesting seabirds at the Prince Edward Island ... (3% per year). The estimate of Indian yellow-nosed albatrosses T. carteri at Prince Edward Island was ... similar in 2001 and 2008. Counts of both sooty albatrosses Phoebetria spp. were substantially higher at ...
Meeting Document : WG-EMM-10/P04 : Autor(es): P.G. Ryan, M.G.W. Jones, B.M. Dyer, L. Upfold and R.J.M. Crawford
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Estimation of the 2011 catch limit for mackerel icefish (Champsocephalus gunnari) in Subarea 48.3 using a length-based population dynamics model
. Agnew (UK) Title: Estimation of the 2011 catch limit for mackerel icefish (Champsocephalus gunnari) in ... fishing season for Champsocephalus gunnari in CCAMLR sub area 48.3. The model is initialised using ... for cohort identification associated with the age based projection model used in previous assessments ... . Application of the harvest control rule ensuring 75% escapement after a two year projection period yielded a ...
Meeting Document : WG-FSA-10/37 : Autor(es): C.T.T. Edwards, R.E. Mitchell, J. Pearce and D.J. Agnew (UK)
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A preliminary CASAL population assessment of Patagonian toothfish in CCAMLR Subarea 48.4 based on data for the 2009–2014 fishing seasons
. eleginoides) in Subarea 48.4. The assessment data are updated with the observations for the 2013/14 season and ... that an annual yield of 40 tonnes is consistent with the application of the CCAMLR harvest control rule ... Patagonian toothfish in CCAMLR Subarea 48.4 based on data for the 2009–2014 fishing seasons Approval ... Abstract: This paper describes a preliminary CASAL based assessment of Patagonian toothfish (D ...
Meeting Document : WG-FSA-14/29 Rev. 1 : Autor(es): V. Laptikhovsky, R. Scott, M. Söffker and C. Darby (United Kingdom)
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On the catchability of bottom trawl in relation to icefish (C. gunnari)
Abstract: Analysis of Russia HAK-4M trawl catchabilities has been made in the paper. This trawl ... . Author(s): Kasatkina, S.M., Ivanova, V.F. Title: On the catchability of bottom trawl in relation to ... (that is catchability in relation to fish of different length) has been realized by models of ... of improving trawl survey methodology related to the bottom trawl application as a measuring system ...
Meeting Document : WG-FSA-SAM-04/11 : Autor(es): Kasatkina, S.M., Ivanova, V.F.
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Configuration of the FP-120 net used on UK groundfish surveys in CCAMLR Subarea 48.3 (South Georgia)
Abstract: At its 2014 meeting, WG-FSA recommended that details of fishing gear used in trawl ... surveys (in addition to longline research) should be submitted to the CCAMLR fishing gear ‘library’ (SC ... -CAMLR-XXXIII p 3.76). This paper provides detailed diagrams of the FP-120 net which has been used for ... sampling demersal fishes on the UK groundfish survey in CCAMLR subarea 48.3 since 1991. Author(s): M ...
Meeting Document : WG-FSA-15/26 : Autor(es): M. Belchier, L. Featherstone and J. Oliver (United Kingdom)
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Assessing the accuracy of penguin breeding abundance estimates at regional scales in Antarctica from existing count data: a review using Adélie penguins as a case study
Abstract: There is a large body of existing count data in the literature for penguins at their ... breeding sites in Antarctica and the sub-Antarctic islands. These data have been summarised into several ... attempt to determine how the accuracy of regional scale abundance estimates derived from these data might ... . Southwell (Australia) Title: Assessing the accuracy of penguin breeding abundance estimates at regional ...
Meeting Document : WG-EMM-04/55 : Autor(es): C. Southwell (Australia)
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Patterns and processes in the distribution and dynamics of Antarctic krill
critical processes to be added. An analysis of spatial distribution of krill in the Bransfield Strait area ... and processes in the distribution and dynamics of Antarctic krill Approval: Approved ... Abstract: A general framework is presented to develop, test and integrate component models of the ... abundance. Incremental models should then be compared to statistical descriptions of the observed ...
Meeting Document : SC-CAMLR-VII/BG/20 : Autor(es): United States of America
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Quantifying uncertainty in the Chapman mark-recapture estimate of abundance
estimate biomass in the initial stage of developing an assessment. This short paper describes the use of ... . Welsford (Australia) Title: Quantifying uncertainty in the Chapman mark-recapture estimate of abundance ... the R package tagr to obtain Petersen / Chapman estimates of abundance. The package implements a non ... Abstract: In New and Exploratory fisheries for toothfish, mark-recapture plays a critical role to ...
Meeting Document : WG-FSA-15/49 : Autor(es): P. Burch (Australia), S. Parker (New Zealand) and D. Welsford (Australia)
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An iterative model to construct an age-length key to assess the age composition of a new fishery for Dissostichus eleginoides in Chilean waters
Abstract: Traditional calculation of catch age composition estimate requires that the age-length ... data and random length frecuency be sampled from the same population, in other case an age-length key ... is capable of providing biased estimates of age distribution. By using the iteration algorithm is ... with the aplication of a single age-length key to all monthly length distribution using the nonlinear ...
Meeting Document : WG-FSA-92/23 Rev. 1 : Autor(es): H. Robotham V. and Z. Young U. (Chile)
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Update on prosecutions against vessels for alleged illegal fishing in Australia’s EEZ around the territory of Heard Island and McDonald Islands
Abstract: This paper provides an update of prosecution actions pending against three vessels, the ... Salvora, Aliza Glacial and the Big Star, for alleged illegal fishing in the Australian EEZ around the ... ): Delegation of Australia Title: Update on prosecutions against vessels for alleged illegal fishing in ... Australia’s EEZ around the territory of Heard Island and McDonald Islands Approval: Approved ...
Meeting Document : CCAMLR-XVII/BG/39 : Autor(es): Delegation of Australia