Résultats de la recherche
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Results from the reduced groundfish survey conducted in CCAMLR Subarea 48.3 in January 2012
Abstract: A reduced (three day) groundfish survey took place at Shag Rocks on the FV New Polar ... between the 26-28th January 2012. This survey was not intended to be a full biomass survey so only 20 ... and Euphausiidae was the dominant prey item in the mackerel icefish diet. Strong acoustic marks, some ... of which may be attributable to icefish, were observed in the water column, and in only 23 hauls 15.2 ...
Meeting Document : WG-FSA-12/37 : Auteur(s): J. Brown, S. Gregory, A. Stanworth, V. Carretero, G. Baker and M. Belchier (United Kingdom)
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Espèces communes des captures accessoires des pêcheries palangrières et chalutières de la CCAMLR
. Zoarcidae. p. 256-276. In O. Gon and P.C. Heemstra (eds.) Fishes of the Southern Ocean. J.L.B. Smith ... ). Nototheniidae, p. 279–331. In: Gon, O.; Heemstra, P.C. (eds). Fishes of the Southern Ocean. J.L.B. Smith ... . In: Gon, O.; Heemstra, P.C. (eds). Fishes of the Southern Ocean. J.L.B. Smith Institute of ... . Vol. 10. Gadiform fishes of the world (order Gadiformes). An annotated and illustrated catalogue of ... Description / Abstract: This by-catch guide is designed to assist in the identification of common ... fish by-catch species in CCAMLR longline and trawl fisheries. The identification sheets are based on ... the resources provided by Australia, New Zealand, the Republic of Korea, and United Kingdom members ... , and the Secretariat acknowledges their contributions to this guide. Online resources have also been ...
Document : Site Section: Science
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Problems of population age structure determination of Euphausia superba Dana using an example from the Antarctic Peninsula area and adjacent waters
an example from the Antarctic Peninsula area and adjacent waters Abstract / Description: This paper ... 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 ... and the South Shetland Islands, as well as data collected by other researchers during FIBEX and data ... STRUCTURE DETERMINATION OF EUPHAUSIA SUPERBA DANA USING AN EXAMPLE FROM THE ANTARCTIC PENINSULA AREA AND ... ADJACENT WATERS V.A.Spiridonov (U.S.S.R.) Abstract This paper 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 and the South Shetland Islands ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 227-270 : Auteur(s): Spiridonov, V.A.
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Growth of krill around the South Orkney Islands in 1989/90
Admiralty Bay (King George Island). Author(s): V.I. Latogursky (Russia) Title: Growth of krill around the ... Abstract: On the grounds of materials collected by biologists-02servers from October 1989 to June ... 1990 near South Orkney Islands the growth of males and females are characterized according to size ... groups, distinguished using the probability paper. Six size groups both for males and females were ...
Meeting Document : WG-KRILL-93/36 : Auteur(s): V.I. Latogursky (Russia)
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Long-term trends in the foraging patterns of female Antarctic fur seals at South Georgia
Paper Title: Long-term trends in the foraging patterns of female Antarctic fur seals at South ... Georgia Abstract / Description: The number of feeding trips to sea made by female Antarctic fur seals ... during lactation may reflect the relative availability of local prey resources. Experimental work ... utilizing tetracycline-marked teeth confirmed that the feeding trip/suckling cycles of females are reflected ... -TERM TRENDS IN THE FORAGING PATTERNS OF FEMALE ANTARCTIC FUR SE!\LS AT SOUTH GEORGIA* 1 J.L ... . Bengtson (USA) Abstract The number of feeding trips to sea made by female Antarctic fur seals during ... lactation may reflect the relative availability of local prey resources. Experimental work utilizing ... tetracycline-marked teeth confirmed that the feeding trip/suckling cycles of females are reflected as ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 441-443 : Auteur(s): Bengtson, J.L.
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ANTARCTIC KRILL DEMOGRAPHY AND POPULATION DYNAMICS WEST OF THE ANTARCTIC PENINSULA IN 2010/11
Abstract: A krill net sampling survey was carried out west of the Antarctic Peninsula in January ... . The survey was a joint German and US effort. While the US AMLR Survey section covered the area between ... Elephant Island and the western entrance of Bransfield Strait, the “Polarstern” survey grid followed back ... to back and extended southwest beyond Adelaide Island/Marguerite Bay. 177 quantitative net samples ...
Meeting Document : WG-EMM-11/13 : Auteur(s): V. Siegel (Germany), C. Reiss (USA), K. Dietrich (USA), M. Haraldsson (Sweden) and G. Rohardt (Germany)
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Some comments on the procedure for testing estimators of krill abundance which utilise survey data
Paper Title: Some comments on the procedure for testing estimators of krill abundance which ... computer generation of krill distribution patterns, which are compatible with existing information on the ... concentrations; these concentrations are then located at random within the survey area. These ‘two-level’ models ... provide an encouraging improvement in fits to the distribution of inter-swarm distances observed on the ... WG-KRILL-91/21 SOME COMMENTS ON THE PROCEDURE FOR ... computer generation of krill distribution patterns, which are compatible with existing information on the ... concentrations; these concentrations are then located at random within the survey area. These "two-level" models ... provide an encouraging improvement in fits to the distribution of inter-swarm distances observed on the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 191–205 : Auteur(s): Butterworth, D.S., D.L. Borchers and D.G.M. Miller
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Killer whale (Orcinus orca) and sperm whale (Physeter macrocephalus) interactions with longline vessels in the Patagonian toothfish fishery at South Georgia, South Atlantic
no cetaceans were present. Catch rates were slightly higher in the presence of sperm whales and it is ... , although no quantitative studies have been carried out to measure their effectiveness. Apart from the ... with longline vessels in the Patagonian toothfish fishery at South Georgia, South Atlantic Abstract ... 169 to 2 150 m. Most effort was concentrated along the 1 000 m depth contour. Sperm whales were the ... during which no cetaceans were present. Catch rates were slightly higher in the presence of sperm ... and fi shers seem to indicate an increase in the levels of depredation. No reliable estimates exist ... depredation of catch to the presence of whales around the vessel with no apparent connection to fi shing ... , no mammals were observed in the vicinity of the vessel. The most abundant mammal species present ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 111–126 : Auteur(s): Purves, M.G., D.J. Agnew, E. Balguerías, C.A. Moreno and B. Watkins
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Trends in bird and seal populations as indicators of a system shift in the Southern Ocean
on several breeding sites have decreased severely, whilst two species have increased at the same time ... Abstract: Although world oceans have been warming over the past 50 years, the impact on biotic ... components is poorly understood because of the difficulty of obtaining long-term data sets on marine ... organisms. The Southern Ocean plays a critical role on global climate and there is growing evidence of ...
Meeting Document : WG-EMM-03/53 : Auteur(s): H. Weimerskirch, P. Inchausti, C. Guinet and C. Barbraud (France)
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Sea Ice Biota: Trophic modelling of the Ross Sea
Description / Abstract: A supporting document to the CCAMLR Science paper: M.H. Pinkerton, J.M ... . Bradford-Grieve and S.M. Hanchet. 2010. A balanced model of the food web of the Ross Sea, Antarctica ... imports, exports and accumulations of material in each of the groups. No accumulation of any trophic ... group in single year sea ice are allowed in the annual model; there can be no build up or loss of ... multiplying this by the daily Earth-sun distance factor (Spencer 1971). We made no correction for variation ... ice habitat rather than by light. Growth of epontic algae in the Prydz Bay (east Antarctica) area may ...
Document : Site Section: Publications