Résultats de la recherche
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Biogeographic patterns of benthic invertebrate megafauna on shelf areas within the Southern Ocean Atlantic sector
Paper Title: Biogeographic patterns of benthic invertebrate megafauna on shelf areas within the ... properties. Analysis of the benthic invertebrate megafaunal assemblages of shelf habitats within the Atlantic ... sector, from scientific survey trawl catches, reveals distributional patterns. For the northern Antarctic ... Peninsula and the South Shetland Islands, the data indicate a two-layered pattern based on standardised ... with GPS from the start to the end of bottom trawling (seabed contact), and the average trawl mouth ... BIOGEOGRAPHIC PATTERNS OF BENTHIC INVERTEBRATE MEGAFAUNA ON SHELF AREAS WITHIN THE SOUTHERN OCEAN ATLANTIC ... incorporates a range of data on physical, environmental and biological properties. Analysis of the benthic ... invertebrate megafaunal assemblages of shelf habitats within the Atlantic sector, from scientific survey trawl ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 167–192 : Auteur(s): Lockhart, S.J. and C.D. Jones
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Diet study of Antarctic toothfish caught in the east Antarctic based on stomach content, fatty acid and stable isotope analyses
Paper Title: Diet study of Antarctic toothfish caught in the east Antarctic based on stomach ... content, fatty acid and stable isotope analyses Abstract / Description: To identify the major prey items ... for Antarctic toothfish (Dissostichus mawsoni) in the small-scale research unit (SSRU) 5841C in the ... between them. δ 15 N values of Antarctic toothfish were higher than for the other species collected ... freezing immediately after being extracted, and taken to the laboratory. All fish samples for FA and ... min. After cooling, 1 ml of hexane was added to the mixture. Vortexing was undertaken after capping ... min, ramping to 150°C at 30°C min–1, and holding at 250°C for 10 min after ramping at 2°C min–1. The ... cumulative prey curves for D. mawsoni started to level off after 32 stomachs (Figure 2). Fish were the most ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 29–44 : Auteur(s): Park, H.J. , I. Yeon, E. Han, Y.J. Lee, S.M. Hanchet, G.W. Baeck, Y. Kwon, S.G. Choi, D.W. Lee and C.K. Kang*
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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
Paper Title: Analysis of the diet of Champsocephalus gunnari at South Georgia in late summer from ... 1994 to 1997, Dr Eduardo L. Holmberg surveys Abstract / Description: The diet composition of the ... superba), followed by the amphipod hyperiid Themisto gaudichaudii, was the main food item around South ... Georgia and Shag Rocks in the period investigated, except in 1994, when the order of importance of these ... Georgia, CCAMLR INTRODUCTION mainly around South Georgia and Shag Rocks - intensively u p to the end ... survey, stomach contents were analysed qualitatively on board immediately after the catch was taken. On ... CCAMLR Science, Vol. 5 (1998): 103-123 ANALYSIS OF THE ... 1248,1010 Buenos Aires Argentina Abstract The diet composition of the mackerel icefish (Champsocephalus ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 103–123 : Auteur(s): Barrera-Oro, E., R. Casaux and E. Marschoff
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On the intensity of sampling krill trawl catches
Paper Title: On the intensity of sampling krill trawl catches Abstract / Description: This paper ... uses actual krill length-frequency data in an attempt to address the problem of the determination of ... . The possible effect of two other factors (within-trawl variability and sample decomposition) which may ... influence length-frequency data quality is also considered. Attention is drawn to the following: • all ... operation. Routinely, krill samples were collected from the aft-quarter of the trawl codend and the ... the effect of elapsed time after capture (i.e., decomposition of samples) on measurements of length ... WG-KRILL-90/27 ON THE INTENSITY OF SAMPLING KRILL TRAWL ... address the problem of the determination of adequate sample size to obtain representative krill length ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 29–48 : Auteur(s): Miller, D.G.M.
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Krill population biology during the 1991 Chilean Antarctic krill fishery
Paper Title: Krill population biology during the 1991 Chilean Antarctic krill fishery Abstract ... during krill fishing operations around the South Shetland Islands on board the Chilean factory vessel ... . The fishing ground was divided into two areas: Area A, north of the South Shetland Islands; and Area B ... , north of Elephant Island. The samples were grouped by time of capture: daytime, twilight and night-time ... WG-KRILL-92/33 KRILL POPULATION BIOLOGY DURING THE 1991 ... fishing operations around the South Shetland Islands on board the Chilean factory vessel Kirishima ... from 1.5 to 3 cm). Two subsamples of 100 specimens each were taken from 50 samples and analysed. The ... fishing ground was divided into two areas: Area A, north of the South Shetland Islands; and Area B, north ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 223–235 : Auteur(s): Mujica R., A., E. Acuña S. and A. Rivera O.
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Seabird mortality in the Patagonian toothfish longline fishery around Crozet and Kerguelen Islands, 2001–2003
Paper Title: Seabird mortality in the Patagonian toothfish longline fishery around Crozet and ... Kerguelen Islands, 2001–2003 Abstract / Description: The legal Patagonian toothfish (Dissostichus ... eleginoides) longline fishery operating in the French Exclusive Economic Zones (EEZs) of Crozet and Kerguelen ... August 2003. Overall, the white-chinned petrel (Procellaria aequinoctialis) was the most frequently ... 58.7) at the end of the 1990s. We propose that the size of breed- ing populations, which is much ... (2005): 53–80 53 SEABIRD MORTALITY IN THE PATAGONIAN TOOTHFISH LONGLINE FISHERY AROUND CROZET AND ... Dejean, BP 400 97 458 Saint-Pierre Cedex La Réunion, France Abstract The legal Patagonian toothfi sh ... (Dissostichus eleginoides) longline fi shery operating in the French Exclusive Economic Zones (EEZs) of Crozet ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 53–80 : Auteur(s): Delord, K., N. Gasco, H. Weimerskirch, C. Barbraud and T. Micol
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Physical oceanographic setting of the Siedlecki January 1987, South Shetland Island data set
Paper Title: Physical oceanographic setting of the Siedlecki January 1987, South Shetland Island ... data set Abstract / Description: In the vicinity of the northern tip of the Antarctic Peninsula, the ... Bransfield Straits and South Shetland Islands, cold polar waters from the Weddell Sea meet warmer circumpolar ... water from the Pacific Ocean. A series of fronts form which are collectively referred to as the Weddell ... Island end of the Scotia Front is similar to a continental shelf-slope front of Antarctica. The ... in the eastern end of the Bransfield Straits falls in the region of 0° to -0.7°C; 34.65, marking the ... Bransfield Strait and Pacific circumpolar water, associated with the sharp continental front (or western end ... mixing. Figure 8 shows the end-member water columns (Pacific, represented by station 244 and Bransfield ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 161-184 : Auteur(s): Gordon, A.L.
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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
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 ... (Euphausia superba) associated with the daylight phase over the diurnal cycle (i.e. brightness categories ... ) was examined for the Scotia Sea (South Shetland Islands (SS), South Orkney Islands (SO) and South ... AGGREGATION OF ANTARCTIC KRILL (EUPHAUSIA SUPERBA) IN THE SCOTIA SEA, USING JAPANESE FISHERY DATA K. Taki ... -ku, Shizuoka, 424-8633 Japan Email – takisan@affrc.go.jp Abstract Seasonal variation in the diurnal ... vertical migration and aggregation of Antarctic krill (Euphausia superba) associated with the daylight ... phase over the diurnal cycle (i.e. brightness categories) was examined for the Scotia Sea (South ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 163–172 : Auteur(s): Taki, K., T. Hayashi and M. Naganobu
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Analyses of acoustic line-transect data from the waters around South Georgia: estimation of krill (Euphausia superba Dana) – biomass
Paper Title: Analyses of acoustic line-transect data from the waters around South Georgia ... of zooplankton stocks in the waters around South Georgia was carried out during November and December ... 1981. The data have been analysed using various definitions of strata. The total biomass in the area of ... estimate of mean density throughout the region of 11.7 tonnes km-2. Although the estimate of the mean is ... (MVBS). 226 At the end of each section various 'station' activities were carried out as part of ... either end of a section allowed an estimate of the mean temperature minimum to be obtained and used to ... unreasonable as the transecting was delayed for station sampling at the end of each section. The next three ... '---- .. ----- ----- -----"' ... --- -~ ---~-. ~ __ ~_ * ___ 1000 .. ~ .--- --,,- End- Figure 1: The realised survey track around the island of South ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 225–243 : Auteur(s): Murphy, E., I. Everson and A. Murray
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Attribtuion of acoustic echoes to squid in the south Atlantic
Paper Title: Attribtuion of acoustic echoes to squid in the south Atlantic Abstract / Description ... : During a research cruise of the British Antarctic Survey ship RRS James Clark Ross in February 1996, more ... than 2 000 individuals of the ommastrephid squid, Martialia hyadesi, were caught in a single haul made ... by a pelagic trawl near the Antarctic Polar Frontal Zone in CCAMLR Subarea 48.3. This paper describes ... this layer scattered more weakly at 120 kHz. After dawn, the speckles cleared away and no more ... on the 120 kHz chart. After adjustment, echo-integrator values from the vicinity of these marks are ... appeared before deployment and after the net had been hauled in. During the final haul the net suffered ... ATTRIBUTION OF ACOUSTIC ECHOES TO SQUID IN THE SOUTH ATLANTIC C. Goss, P. Rodhouse, J.L. Watkins and A.S ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 259–271 : Auteur(s): Goss, C., P. Rodhouse, J.L. Watkins and A.S. Brierley