Résultats de la recherche
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Remarks on the natural mortality of Dissostichus eleginoides in Subarea 48.3
Paper Title: Remarks on the natural mortality of Dissostichus eleginoides in Subarea 48.3 ... (1989) from the data obtained during the Chilean longline fishery in Subarea 48.3 (N = 7 848. The von ... : fishing site, fishing depth and hook type. It was determined that there were no significant differences in ... differences in M between fishing sites. On the other hand, when comparing various mean values of M for the ... von Bertalanffy y T es la edad donde N,* W t toma su valor maximo. 3. RESULTAOOS 3.1 Efecto del ... DISSOSTICHUS ELEGINOIDES DE LA SUBAREA 48.3 C.A. Moreno y P.S. Rubilar* Abstract Natural mortality (M ... ± 0.03. Resume La mortalite naturelle (M) de Dissostichus eleginoides a ete calculee d'apres Sparre ... (1989) a partir des donnees provenant de la pecherie a la palangre chilienne dans la sous-zone 48.3 (N ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 21–30 : Auteur(s): Moreno, C.A. and P.S. Rubilar
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Assessments of by-catch in trawl fisheries at Heard and MacDonald Islands
. Author(s): de la Mare, W.K., Williams, R., Constable, A. Title: Assessments of by-catch in trawl ... caught as by-catch in the commercial trawl fisheries in the Heard Island area (Statistical SubArea 58.5.2 ... the spawning biomass of these stocks in the longer term. The long-term annual yield for each of the ... data obtained from the region in 1990-1993. Values for missing input parameters were obtained from the ...
Meeting Document : WG-FSA-97/30 : Auteur(s): de la Mare, W.K., Williams, R., Constable, A.
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Assessment of krill flux factors in waters of South Orkney Islands during summer 1996
Paper Title: Assessment of krill flux factors in waters of South Orkney Islands during summer ... February to 7 March 1996 to assess krill flux factors in Subarea 48.2. The study area (80 x 240 n miles ... ) was located in the zone of interaction between waters of the Antarctic Circumpolar Current (ACC) and ... in the past. The geostrophic transport of krill across boundaries of the study area was calculated as ... ., 1985; Everson and de la Mare, 1996). If the overall pattern of water circulation in Subarea 48.2 is ... courant circumpolaire antarctique et de la mer de Weddell. Elle couvre des sites ou de fortes ... la bordure de la zone d'etude est calcule par le produit de deux variables integrees pour ... l'intervalle de profondeur 0 - 200 m : la densite de krill (g/m3) et le transport des masses d'eau (&/sec ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 195–204 : Auteur(s): Kasatkina, S.M., V.N. Shnar, M.I. Polischuk, A.M. Abramov and V.A. Sushin
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A composite recruitment index to describe interannual changes in the population structure of Antarctic krill at South Georgia
Paper Title: A composite recruitment index to describe interannual changes in the population ... substantial differences, due in part to bias arising from a large number of krill in just one of the station ... %), while between 1994 and 1998 the number of 1+ krill found in the population increased with a very ... successful recruitment year due to krill spawned in 1994/95. File: 06watkins.pdf ... calculate recruitment indices (de la Mare, 1994). In this paper I consider a series of British Antarctic ... plot and derive the proportion of krill in each putative year class (de la Mare, 1994). RESULTS ... distributions ajust6es des classes d'sge (trait f in) d u jeu de donn6es de test d e JR17 (1996197) o u la ... successful recruitment year due to krill spawned in 1994/95. Resume Description d'un indice composite de ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 71–84 : Auteur(s): Watkins, J.L
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Population genetic structure of Patagonian toothfish in the West Indian Ocean sector of the Southern Ocean
Paper Title: Population genetic structure of Patagonian toothfish in the West Indian Ocean sector ... structure of Patagonian toothfish (Dissostichus eleginoides) in the West Indian Ocean sector of the Southern ... - satellite loci were performed in a PE-Applied Bio systems 9600 thermocycler. Digested mtDNA fragments were ... : M ap s ho w in g th e re la ti ve p os it io ns o f c ol le ct io ns o f D is so ... locations. Résumé Des marqueurs moléculaires ont servi à étudier la structure du stock de légine australe ... microsatellites nucléaires. La diversité de l'haplotype d'ADNmt variait entre 0,331 et 0,351. Les niveaux ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 21–32 : Auteur(s): Appleyard, S.A., R. Williams and R.D. Ward
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A condensed history and document of the method used by CCAMLR to estimate krill biomass (B0) in 2010
model and krill yield model (Constable and de la Mare, 1996; Butterworth et al. 1994). A key parameter ... Abstract: Antarctic krill (Euphausia superba) are considered to be one of the key species in the ... estimate of B 0 which is used by CCAMLR in the model is derived from the CCAMLR-2000 synoptic acoustic ... survey (hereafter CCAMLR-2000) in the Food and Agriculture Organisation (FAO) statistical subareas 48.1 ...
Meeting Document : WG-EMM-16/38 : Auteur(s): S. Fielding, A. Cossio, M. Cox, C. Reiss, G. Skaret, D. Demer, J. Watkins and X. Zhao
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Interannual variability of krill, salp and other zooplankton populations in the South Shetland Island area during Austral summer 1993–1998
sea ice in the Antarctic Peninsula region. Overall krill length/maturity composition reflected poor ... recruitment from the past two years. Unusually small juvenile krill in 1998 suggested that survival success ... was limited to late-spawned eggs and larvae in 1997. Delayed spawning and few larval krill in 1998 ... were associated with extremely high salp abundance. Sa/pa thompsoni abundance was similar to levels ...
Meeting Document : WG-EMM-98/50 : Auteur(s): V. Loeb, W. Armstrong, R. Hewitt (USA) and V. Siegel (Germany)
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Phytoplankton distribution in the mixed layer: implication to krill abundance
Paper Title: Phytoplankton distribution in the mixed layer: implication to krill abundance ... distribution of phytoplankton in the Antarctic Ocean. Since little is known about mixed layer dynamics in the ... model. Available CTD data suggest that the mixing in the upper layer is less than what we expected ... . However, the effect on the dynamics is vital, affecting the distribution of particles in the upper ocean ... Un modele uni-dimensionnel de trajet aleatoire de Lagrange est presente pour permettre I'etude de la ... distribution du phytoplancton dans I'ocean Antarctique. Vu que I'on possede une connaissance reduite de la ... dynamique des couches mixtes dans I'ocean Antarctique, la profondeur de la couche mixte et I'intensite de ... sa turbulence ont ete estimees d'apres un mode le de couche d'Ekman. Des donnees disponibles de ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 331–356 : Auteur(s): Yamazaki, H. and T.R. Osborn
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A review of the effectiveness of streamer lines as a seabird by-catch mitigation technique in longline fisheries and CCAMLR streamer line requirements
technique in longline fisheries and CCAMLR streamer line requirements Abstract / Description: Based to a ... large degree on the precedent set by CCAMLR in 1991, the streamer line has become the primary, and most ... commonly prescribed, seabird mitigation device in world longline fisheries. This paper reviews CCAMLR ... streamer line requirements (Conservation Measure 25-02 (2002), formerly Conservation Measure 29/XIX) in ... , la ligne de banderoles est devenue le principal dispositif d’atténuation de la capture accidentelle ... d’oiseaux de mer dans les pêcheries à la palangre dans le monde et le dispositif le plus communément ... prescrit. Ce document examine les conditions fi xées par la CCAMLR pour les lignes de banderoles (mesure ... de conservation 25-02 (2002), ancienne mesure de conservation 29/XIX) en vue d’une analyse de la ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 189–201 : Auteur(s): Melvin, E.F., B. Sullivan, G. Robertson and B. Wienecke
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Evidence to support the annual formation of growth zones in otoliths of Antarctic toothfish (Dissostichus mawsoni)
Paper Title: Evidence to support the annual formation of growth zones in otoliths of Antarctic ... annually in the otoliths of this species. However, no evidence to validate this assumption has previously ... been presented. In the current work, otoliths from four distinct juvenile length-frequency modes were ... in each consecutive mode. This indicates that the modes represented year classes and that one ... -mature D. mawsoni. Résumé L’âge de la légine antarctique (Dissostichus mawsoni) de la mer de Ross (sous ... -zone 88.1 de la CCAMLR) a été déterminé en présumant la formation d’une zone translucide chaque année ... NOTE 126 à partir d’un échantillon de données qui, malgré sa taille importante, ne couvrait pas les ... zones séparant la ligne fl uorescente d’oxytétracycline de la marge de l’otolithe met en évidence la ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 125–138 : Auteur(s): Horn, P.L., C.P. Sutton and A.L. DeVries