Résultats de la recherche
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Integrating Count Effort by Seasonally Correcting Animal Population Estimates (ICESCAPE): a method for estimating abundance and its uncertainty from count data using Adélie penguins as a case study
Paper Title: Integrating Count Effort by Seasonally Correcting Animal Population Estimates ... animal count data to a common reference point of breeding chronology for species with a complex temporal ... function of sampling availability. ICESCAPE (Integrating Count Effort by Seasonally Correcting Animal ... IntegratIng Count effort by SeaSonally CorreCtIng anImal PoPulatIon eStImateS (ICeSCaPe): a method for ... animal count data to a common reference point of breeding chronology for species with a complex temporal ... function of sampling availability. ICESCAPE (Integrating Count Effort by Seasonally Correcting Animal ... for estimating abundance and its uncertainty from count data Introduction Counts of animal ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 213–227 : Auteur(s): McKinlay, J., C. Southwell and R. Trebilco
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Estimation of natural mortality using catch-at-age and aged mark-recapture data: a multi-cohort simulation study comparing estimation for a model based on the Baranov equations versus a new mortality equation.
, using multiple cohorts and multiple years of catch-at-age and aged mark-recapture data was tested using ... process error in predicted catch-at-age numbers. Simulations assumed 1 000 releases per year over 12 years ... Paper Title: Estimation of natural mortality using catch-at-age and aged mark-recapture data: a ... applied. Two alternative estimation models were developed both using a Poisson likelihood for annual ... is defined to not be the whole year but the latter q fraction of the year, then this two-period ... + nf – 1 YCS parameters. modelling number of aged recaptures Development of within-year dynamic equa ... multiple cohorts and multiple years of catch-at-age and aged mark-recapture data was tested using ... predicted catch-at-age numbers. Simulations assumed 1 000 releases per year over 12 years with ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 1–27 : Auteur(s): Candy, S.G.
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Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald Islands using catch-at-age and aged mark-recapture data from the main trawl ground
obtained using proportions-at-length and fishery- and year-specific age–length keys (ALKs) for years 1998 ... Islands using catch-at-age and aged mark-recapture data from the main trawl ground Abstract / Description ... were used to obtain recapture numbers by age class. Two alternative estimation models were programmed ... directly from the estimates of population numbers-at-age. The properties of these two models for estimation ... populations combined with multi-year catch-at-age and aged mark-recapture data by Candy (2011). These sim ... : 90 55 9 72 5 78 7 67 3 42 0 32 7 28 7 30 2 23 4 43 4 44 7 N um be r re ... O D E m od el 0. 02 79 0. 02 89 0. 03 20 0. 02 99 0. 01 86 0. 02 80 0 ... 0.05 0.10 0.15 0.20 0.25 0.30 -5 30 0 -5 25 0 -5 20 0 -5 15 0 -5 10 0 -5 05 0 -5 00 0 -4 95 ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 29–45 : Auteur(s): Candy, S.G., D.C. Welsford, T. Lamb, J.J. Verdouw and J.J. Hutchins
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Book review: Fish and Fish Resources of the Antarctic
Paper Title: Book review: Fish and Fish Resources of the Antarctic Abstract / Description: This ... Russian-speaking readership. The book represents the first complete summary, prepared by a Russian author ... Antarctic waters only just over 80 meso- and bathypelagic species (30 families) have been recorded. The ... knowledge acquired by the author over a period of more than 30 years allowed lum to analyse both the ... CCAMLR Scieiicc, Vol. 8 (2001): 165-168 BOOK REVIEW ... , remains fairly unknown beyond a Russian-speaking readership. The book represents the first complete ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 165–168 : Auteur(s): Shust, K.V
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Book review – Biogeographic Atlas of the Southern Ocean
Paper Title: Book review – Biogeographic Atlas of the Southern Ocean Abstract / Description ... , Cambridge: XII + 498 pp. File: book-review.pdf ... Putte, B. Danis, B. David, S. Grant, J. Gutt, C. Held, G. Hosie, F. Huettmann, A. Post and Y. Ropert ... (2015): 45–46 45 Book review Biogeographic Atlas of the Southern Ocean De Broyer, C., P. Koubbi ... of the Southern Ocean. Scientific Committee on Antarctic Research, Cambridge: XII + 498 pp. Book ... effort to encompass these gap areas is one solution, which cannot be achieved without considerable ... , H.J. Griffiths, B. Raymond, C. Udekem d’Acoz, A.P. Van de Putte, B. Danis, B. David, S. Grant, J ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 45-46 : Auteur(s): Reid, K.
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Improving estimates of Adélie penguin breeding population size: developing factors to adjust one-off population counts for availability bias
to adjust one-off population counts for availability bias Abstract / Description: New methods are ... point one week after the peak in egg laying, consistent with Standard Method A3 of the CCAMLR Ecosystem ... population obtained by adjusting a one-off count using availability adjustment factors will not account for ... , breeding-age penguins that failed to return to the breeding site in that breeding season, nor pre-breeding ... undertaken ‘on the same day each year…when about two-thirds of chicks have entered crèches’ in the same ... 16 1 Jan 16 1 Feb 16 0. 0 0. 5 1. 0 1. 5 2. 0 0 20 40 60 80 10 0 Camera 2 16 1 Nov 16 1 ... Dec 16 1 Jan 16 1 Feb 16 0. 0 0. 5 1. 0 1. 5 2. 0 0 20 40 60 80 10 0 Camera 3 A du lt A ... 1. 0 1. 5 2. 0 0 20 40 60 80 12 0 C ou nt Date A du lt av ai la bi lit y ad ju st ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 229–241 : Auteur(s): Southwell, C., J. McKinlay, L. Emmerson, R. Trebilco and K. Newbery
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Erratum and Addendum - Modelling catch and effort data using generalised linear models, the Tweedie distribution, random vessel effects and random stratum-by-year effects – CCAMLR Science, 11: 59–80 (2004)
models, the Tweedie distribution, random vessel effects and random stratum-by-year effects – CCAMLR ... Science, 11: 59–80 (2004) File: 12candy-erratum.pdf ... EffEcts And rAndoM strAtuM-by-yEAr EffEcts CCAMLR Science, 11: 59–80 (2004) S.G. Candy Department ... Lambda E xt en de d qu as i-d ev ia nc e 0.5 1.0 1.5 2.0 26 00 00 26 20 00 26 40 00 26 60 ... generalised linear models, the Tweedie distribution, random vessel effects and random stratum-by-year ... effects. CCAMLR Science, 11: 59–80. R Development Core Team. 2006. R: A language and Environment for ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 221–222 : Auteur(s): Candy, S.G
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Trends in population size and breeding success at colonies of macaroni and rockhopper penguins, Marion Island, 1979/80–1995/96
rockhopper penguins, Marion Island, 1979/80–1995/96 Abstract / Description: At sub-Antarctic Marion Island ... , annual breeding success of macaroni (Eudyptes chrysolophus) between 1979/80 and 1995/96 and rockhopper ... penguin colonies investigated decreased in size over the study period, while the other two remained stable ... three colonies was a negative correlation between two adjacent colonies, which suggests inter-colony ... success of macaroni (Et~dyptes cl~rysoloplztis) between 1979/80 and 1995/96 and rockhopper penguins (E ... investigated decreased in size over the study period, while the other two remained stable. The only ... was a negative correlation between two adjacent colonies, which suggests inter-colony transfer. The ... larger two of the three rockhopper penguin colonies investigated decreased over the study period, while ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 89–103 : Auteur(s): Cooper, J., A.C. Wolfaardt and R.J.M. Crawford
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Comparison of two methods to assess fish losses due to depredation by killer whales and sperm whales on demersal longlines
aimed at providing two indirect methods of assessment of depredated biomass over an 11-year period (2003 ... Paper Title: Comparison of two methods to assess fish losses due to depredation by killer whales ... two species. When the two species co-occurred around vessels, 1 679 ± 74 tonnes were depredated. The ... comparable results and thus strong support for the CPUE method. From these two methods, depredation rates ... Science, Vol. 22 (2015): 1–14 1 Comparison of two methods to assess fish losses due to depredation by ... (southern Indian Ocean). This study aimed at providing two indirect methods of assessment of depredated ... biomass over an 11-year period (2003 to 2013), accounting for spatial variations of depredation levels ... were estimated to be depredated by the two species. When the two species co-occurred around vessels, 1 ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 1–14 : Auteur(s): Gasco, N., P. Tixier, G. Duhamel and C. Guinet
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Distribution characteristics of krill aggregations in the fishing ground off Coronation Island in the 1989/90 season
Coronation Island in the 1989/90 season Abstract / Description: Distributional characteristics of krill ... should be regarded as preliminary since they were based on data from one season only. Distributional ... WG-KRILL-90/20 DISTRIBUTION CHARACTERISTICS OF KRILL ... females, a predominance of males over females by two to one and also the beginning of spawning. The ... /green liver 15 - dark-green/green liver 65 20 40 60 1:30 10 19.12.89 - 7.0I.90r. time ... \~. P . • . • . • 20 30 • • t • , "' ... I' 50 t I· ... ··"· ", • . 0 . 01 . . I ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 49–73 : Auteur(s): Kasatkina, S.M. and V.I. Latogursky