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1. Problems of population age structure determination of Euphausia superba Dana using an example from the Antarctic Peninsula area and adjacent waters

   examines the size structure of populations of E. superba in relation to their habitat, on the basis of an ... analysis of data collected by the author during the 1981 season in the region of the Antarctic Peninsula ... similar conditions. Hypotheses are formulated regarding the age and growth of E. superba; in addition ... , data are cited on the growth rates of krill in relation to feeding conditions, temperature factors and ... chemical research. - 228 - PROBLEMES CAUSES PAR LA DETERMINATION DE LA COMPOSITION DES AGES DES ... POPULATIONS D'EUPHAUSIA SUPERBA DANA, ILLUSTRES PAR UN EXEMPLE PRIS DANS LA ZONE DE LA PENINSULE ANTARCTIQUE ... ET LES EAUX ADJACENTES V .A. Spiridonov (U .R. S. S.) Ce document presente un examen de la ... structure par tailles des populations de E. superba par rapport a leur habitat, sur la base d'une analyse ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 227-270 : Autor(es): Spiridonov, V.A.

2. The error of the biomass estimate as a function of survey parameters and the statistics of a density field of krill aggregations

   the dependence of relative sampling error in a biomass estimate (from a survey) on the statistical ... (sections) serve as survey parameters. The relationships described here can be used in practice for both a ... concentraciones de peces y de los parametros de de la prospeccion en si, utilizandose la estadistica matematica ... basis for the operative control of surveys. La statistique mathematique et les calculs de probabi ... lites ont permis d' etablir des relations simples expri.mant la dependance de l'erreur relative ... d'echanti.llonnage dans l'estimation de la biomasse UI partir d'une prospection) sur les caracteristiques ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 213-228 : Autor(es): Kizner, Z.I.

3. Movement, growth and available abundance to the fishery of Dissostichus eleginoides Smitt, 1898 at Heard Island, derived from tagging experiments

   Patagonian toothfish (Dissostichus eleginoides) in different sectors of the Southern Ocean are considered to ... be genetically distinct. However, in the Indian Ocean, it is largely unknown whether stocks are ... separation using tagged fish from the fishery around Heard Island and McDonald Islands (HIMI) in the ... Australian Exclusive Economic Zone (EEZ). Movement, growth and trends in fish abundance are examined using ... directe, documentée pour la première fois, d’un déplacement de légine sur une si grande distance et d’une ... . Tr ia ng le – r el ea se lo ca ti on , s ta rs – r ec ap tu re lo ca ti on s. 20 ... évidence de la présence de stocks séparés entre les plateaux et les bancs séparés par des eaux profondes ... . De plus, la séparation des stocks sur le plateau de Kerguelen n’a pas été étudiée. Le présent ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 33–48 : Autor(es): Williams, R., G.N. Tuck, A.J. Constable and T. Lamb

4. Antarctic krill and ecosystem management – from Seattle to Siena

   approach developed in order to calculate a precautionary catch limit for the krill fishery in various ... likely variability in M (de la Mare, 1994a, 1994b). Some of the parameters put into the KYM, and its ... s’agit ici du developpement par la CCAMLR d’une approche de la gestion de la pêcherie du krill ... cette approche s’inscrit dans les objectifs de la Convention de la CCAMLR, notamment son Article II ... . La création du Programme de contrôle de l’écosystème de la CCAMLR (CEMP) est mise en avant, de même ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 175–212 : Autor(es): Miller, D.G.M

5. An assessment of the exploratory fishery for Dissostichus spp. on BANZARE Bank (CCAMLR Division 58.4.3b) based on fine-scale catch and effort data

   (CCAMLR Division 58.4.3b) based on fine-scale catch and effort data Abstract / Description:  In 2006, the ... biological data submitted by scientific observers on board vessels in the fishery. Results of a Leslie ... of toothfish at the scale of individual fishing grounds in the 2004/05 and 2005/06 seasons. This ... inconsistencies are noted between historical data and those submitted in the 2006/07 season, with Patagonian ... c el ls s ho w in st an ce s w he re ca tc h of a s pe ci es / gr ou p w as r ... seasons. Résumé En 2006, le Comité scientifique de la CCAMLR s'inquiétait de l'état du stock sur lequel ... reposait la pêcherie exploratoire de Dissostichus spp. du banc BANZARE (division 58.4.3b de la CCAMLR ... d'une analyse de la réduction du stock par la méthode de Leslie, au moyen des données stratifiées de ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 55–78 : Autor(es): McKinlay, J.P., D.C. Welsford, A.J. Constable and G.B. Nowara

6. Improving estimates of Adélie penguin breeding population size: developing factors to adjust one-off population counts for availability bias

   presented for the collection and development of data to adjust counts of Adélie penguins made at any time in ... point one week after the peak in egg laying, consistent with Standard Method A3 of the CCAMLR Ecosystem ... illustrated using data collected at the Béchervaise Island CEMP site in 2007/08. Estimates of the breeding ... , breeding-age penguins that failed to return to the breeding site in that breeding season, nor pre-breeding ... space and time is recommended. Résumé De nouvelles méthodes sont présentées pour la collecte de ... différentes périodes pendant la saison de reproduction pour obtenir une estimation de la population ... reproductrice. Pour déterminer des « facteurs de correction en fonction de la disponibilité » il faut disposer ... ou des jeunes, qui sont dénombrées tout au long de la saison de reproduction, et les normaliser par ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 229–241 : Autor(es): Southwell, C., J. McKinlay, L. Emmerson, R. Trebilco and K. Newbery

7. A post-processing method to remove interference noise from acoustic data collected from Antarctic krill fishing vessels

   relevant virtual variable operators in the existing acoustic data post-processing software. The utility of ... en ce (p -v al ue s in t- te st ) o f t he p ro pe rti es fo r t he 5 1 kr ill s ... 5% qu ar til e/ m ed ia n/ 75 % q ua rti le . Sw ar m p ro pe rti es M V B S (d ... De pth /m R P 2 2.5 3 3.5 Lo g 10 Le ng th /m R P 2.5 3 3.5 4 4.5 Lo g 10 Pe rim ete ... interference noise was introduced based on relevant virtual variable operators in the existing acoustic data ...

   Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 17–30 : Autor(es): Wang, X., J. Zhang and X. Zhao

8. Some comments on the procedure for testing estimators of krill abundance which utilise survey data

   indeed likely to provide improved performance in practice. Such studies require a simple method for ... provide an encouraging improvement in fits to the distribution of inter-swarm distances observed on the ... 1981 FIBEX survey by MV SA Agulhas. However, evidence of model misspecification remains. Further work ... suggestions are made in this regard. File:  11-Butterworth-et-al.pdf ... la prospecci6n FIB EX de 1981, realizada por el buque SA Agulhas. Sin embargo, aun existe ... trajet du MY SA Agulhas. Comparaison de la distribution observee de frequences de distances entre les ... derrota del buque SA Agulhas. Figura2: Comparaci6n de la distribuci6n de frecuencia de la distancia ... suggestions are made in this regard. Resume Vu que les donnees sur la distribution mettent bien en ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 191–205 : Autor(es): Butterworth, D.S., D.L. Borchers and D.G.M. Miller

9. Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia

   3.8% and sperm whales on 17.7% of lines. Killer whales appear in pod sizes normally of 4 to 10 animals ... toothfish, usually depressing CPUE by about 50%. Sperm whales occur in smaller pod sizes, normally between 1 ... whales have been more frequently encountered in recent years, occurring in larger pod sizes, whereas ... the season in August. Killer whale interactions appear to be more consistent with no obvious pattern ... exercée par les orques (Orcinus orca) et les cachalots (Physeter macrocephalus) autour de la Géorgie du ... Sud. Depuis 2003, on note la présence de cétacés sur 22% des 14 300 palangres observées, dont 3,8 ... grand nombre de légines des lignes de pêche, entraînant généralement une baisse d'environ 50% de la ... moins important sur les captures, pouvant faire baisser la CPUE de 20% au maximum. Ces dernières années ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 163–178 : Autor(es): Moir Clark, J. and D.J. Agnew

10. Maximum entropy reconstructions of krill distribution and estimates of krill density from acoustic surveys at South Georgia, 1996–2000

    line-transect acoustic survey data gathered in the boxes during austral summers from 1996 to 2000 ... 80 km transects in each box, providing about 1 600 density estimates per box. The MaxEnt technique ... × 0.5 km cells in each box, taking explicit account of the spatial relationship between densities in the ... observed data. Despite some very large interannual and regional differences in mean krill density, the ... ur ve y bo x. M ap s sh ow in g al on g- tr an se ct k ri ll d en si ti es (l ... graduados en km. La escala gráfi ca muestra la densidad de kril a lo largo de los transectos (el tamaño ... (MaxEnt) de la répartition du krill et des estimations de la densité moyenne du krill dans deux ... rectangles d’étude (dimensions : 80 km × 100 km) au nord de la Géorgie du Sud. Les reconstructions sont ...

    Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 91–100 : Autor(es): Wafy, M.H., A.S. Brierley, S.F. Gull and J.L. Watkins

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