Search results
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Vertical migrations of mackerel icefish (Champsocephalus gunnari) on the South Georgia shelf
variation de la biomasse du poisson des glaces (Champsocephalus gunnari) calculee a partir des donnees des ... clarification des techniques utilisees. La presente etude, dont l'objectif est !'analyse des donnees sur les ... C. gunnari. pendant les annees d'abondance de l'espece (1982/83, 1983/84 et 1986/87). La capture par heure ... de peche est analysee en fonction de l'heure a laquelle elle a ete realisee. 11 est tenu compte a la ... commercial concentrations of C. gunnari in years of high abundance of the species (1982/83, 1983/84 and 1986 ... considered in the paper. A distinct pattern of daily vertical migrations of C. gunnari was observed on the ... South Georgia shelf. During the day, fish concentrate near the bottom in concentrations 5 to 7 m thick ... may be used for clarification of survey techniques used in stock assessment. For a number of years ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 3–14 : Author(s): Frolkina, J.A. and V.I. Shlibanov
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Acoustic data analysis and models of krill spatial distribution
fluctuations de la biomasse du krill dans I'espace, semivariogramme (autocorrelation spatiale de la biomasse ... du krill) et distribution de frequences de la biomasse estimee de krill. Le spectre a ondes ... diminuer considerablement en intensite. La semivariance de la biomasse ne varie pas de maniere ... significative pour la plupart des distances entre les points, sauf pour les distances inferieures a 1 km. La ... / Description: Acoustic data obtained on 4-5 January 1987 aboard the R/V Professor Siedlecki were used in three ... descriptors of krill spatial aggregation: power spectra for krill biomass fluctuations in space, semivariogram ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 311–329 : Author(s): Morin, A., A. Okubo and K. Kawasaki
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The foraging range of Adélie penguins at Béchervaise Island, Mac. Robertson Land, Antarctica, and its overlap with the krill fishery
principales sources d'alimentation, par rapport it la cote. Pe310Me HarYJIbHbIe apeaJIbI meCTJ.-1 ca ... a l'lle Bechervaise, pres de la base Mawson (Terre Mac. Robertson) ont ete determines par suivi par ... femelles et quatre males) pendant la periode d'incubation (de novembre a decembre 1991) et 17 sorties ... poussins. Les sorties alimentaires de la plupart des oiseaux les ont menes jusqu'a la rupture de pente du ... when the sea became ice free to the coast. Concentrations of krill, Euphausia superba, which have in ... . Robertson Land Coast (approximately 150 000 pairs) and any future harvest of krill in the region. The ... in the South Shetland and South Orkney Islands and reflects the distance offshore of krill, one of ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 337–344 : Author(s): Kerry, K.R., J.R. Clarke and G.D. Else
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Hook selectivity in the longline fishery of Dissostichus eleginoides (Nototheniidae) off the Chilean coast
pecheries chiliennes de legine australe, Dissostichus eleginoides, a pour but d'etudier la selectivite des ... la cote de Valdivia, dans le secteur sud-est du Pacifique, sont egalement prises en consideration ... significatives. Il convient de noter que la proportion des femelles augmente notablement dans les captures ... lorsqu'on augmente la taille des hame90ns droits (de 4 a 3, par ex.) ou lorsqu'on passe d'hame90ns droits ... Paper Title: Hook selectivity in the longline fishery of Dissostichus eleginoides (Nototheniidae ... Chilean fisheries of the Patagonian toothfish, Dissostichus eleginoides is reviewed in order to study ... selectivity of different types and sizes of hooks used in longlines. Original data obtained during 1991 off ... % more efficient than hooks No. 4. Using different bait does not result in significant differences. It is ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 107–119 : Author(s): Moreno, C.A.
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Characteristics of seasonal variation in diurnal vertical migration and aggregation of Antarctic krill (Euphausia superba) in the Scotia Sea, using Japanese fishery data
feeding and spawning ecology and avoidance of visual predators. Résumé La variation saisonnière de la ... migration verticale diurne et de la concentration du krill antarctique (Euphausia superba) liée à la phase ... de jour du cycle diurne (à savoir, les différentes catégories d'éclairement) est examinée pour la ... des données de la pêcherie japonaise. La profondeur moyenne des chalutages mettait le plus souvent ... Paper Title: Characteristics of seasonal variation in diurnal vertical migration and aggregation ... of Antarctic krill (Euphausia superba) in the Scotia Sea, using Japanese fishery data Abstract ... / Description: Seasonal variation in the diurnal vertical migration and aggregation of Antarctic krill ... change during summer and winter in SS and SO. Daily average trawling depth tended to be shallower during ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 163–172 : Author(s): Taki, K., T. Hayashi and M. Naganobu
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Surface water circulation in krill fishing areas near the South Shetland Islands
positionnement par satellite. D'apres le trajet des bouees, la circulation des eaux de surface au nord du ... serie de flux circulaires et semi-circulaires a petite echelle dans la rPgion du plateau, alors que ... dans la region oceanique, la circulation est qualifiee de courant fort du nord-est. Entre ces courants ... contraires on a trouve un courant de cisaillement dans la region de la pente. Les mesures directes du ... Paper Title: Surface water circulation in krill fishing areas near the South Shetland Islands ... deployed in shelf and oceanic waters to the north of the South Shetland Islands. Each buoy was deployed ... sluggish southwest current with a series of small-scale circular and semi-circular flows in the shelf ... region, whereas the circulation in the oceanic region was described as the strong northeast current ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 125–136 : Author(s): Ichii, T. and M. Naganobu
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Preliminary appraisal of Antarctic fish selection by the 32/36 bottom trawl combined with various codends
pas adequates dans le cas des poissons des glaces de l'Antarctique, des Notothenia· gibberifrons et ... des poissons des glaces de la Mer de scotia; les raisons principales etant : l'utilisation d'un ... materiau lourd dans leur construction, le choix inapproprie de la taille du maillage, et certains aspects ... que la taille de maillage optimale de ce cuI de chalut pour la selection des poissons des glaces de ... . It was found that the selectivity properties of twine codends are unsatisfactory in the case of ... used in fishing for them requires further research. It should first of all cover twine codends with a ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 1-48 : Author(s): Zaucha, J.
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Analysis of the diet of Champsocephalus gunnari at South Georgia in late summer from 1994 to 1997, Dr Eduardo L. Holmberg surveys
le present document, les auteurs analysent la composition du regime alimentaire du poisson des ... glaces (Champsocephalus gunizaui) capture dans la sous-zone 48.3 de la CCAMLR B la fin de I'ete, de ... (Q%). Le krill (Euphausia superba) etait la principale source d'alimentation autour de la Georgie du Sud ... et des ilots Shag pendant la periode etudiee, suivi de l'amphipode hyperiid Theinisto gaudichaudii ... Paper Title: Analysis of the diet of Champsocephalus gunnari at South Georgia in late summer from ... mackerel icefish (Champsocephalus gunnari) caught in CCAMLR Subarea 48.3 in late summer from 1994 to 1997 ... Georgia and Shag Rocks in the period investigated, except in 1994, when the order of importance of these ... two species in the diet of C. gunnari was reversed. The consumption of other prey items such as mysids ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 103–123 : Author(s): Barrera-Oro, E., R. Casaux and E. Marschoff
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Albatross populations: status and threats
, the status (i.e.. population trends) of two-thirds of the world's ca. 150 albatross populations remain ... trends) of two-thirds of the world's ca. 150 albatross populations remain unknown. For those ...
Meeting Document : WG-FSA-97/28 : Author(s): Gales, R.
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Albatross populations: status and threats
monitoring the status (i.e. population trends) of two-thirds of the worlds ca. 150 albatross populations ... monitoring the status (i.e. population trends) of two-thirds of the worlds ca. 150 albatross populations ...
Meeting Document : SC-CAMLR-XV/BG/21 : Author(s): Submitted by SCAR