Resultados de la búsqueda
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ADDRESSING UNCERTAINTY OVER THE IMPORTANCE OF ANTARCTIC TOOTHFISH AS PREY OF SEALS AND WHALES IN THE SOUTHERN ROSS SEA: A REVIEW
(Dissostichus mawsoni) as prey of top predators in the Ross Sea. We reviewed the literature to assess the ... been detected in scat or stomach samples; biochemical samples have been taken only from seal ... -breeding seals in McMurdo Sound take 0.8-1.3 toothfish per day. Seals with video recording equipment were ... estimated that the non-breeding portion of the seal population in McMurdo Sound, during spring and summer ...
Meeting Document : WG-EMM-08/22 : Autor(es): D. Ainley and D. Siniff (USA)
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Assessment of fishing intensity of krill in Subarea 48.2 during the season of 1989/90
(data of 2900 trawlings are used) in the South Orkneys area during December 1989- March 1990. In the ... fishing intensity (2.7- 88.9 thous.t) obtained for above mentioned four months in 1984-1993 (CCAMLR, 1994 ... in the area off the northern Coronation Island. Vessels of PPR type obtained the highest catch ... 30 t. The highest variability was observed in trawlings duration (τ) and catch per trawling hour (q ...
Meeting Document : WG-EMM-97/51 : Autor(es): Ivanova, V.I., Sushin, V.A., Kasatkina, S.M.
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Oceanic condition and zooplankton distribution/ abundance in Bransfield Strait during austral summer 1989/1990
Abstract: To delineate zooplankton distribution and abundance in Bransfield Strait, in relation ... plankton towings in a systematic grid from December 29, 1989 to January 7, 1990. Comparisons of temperature ... south of Deception Island, and meanders northeastward in the surface layer of the northern strait ... %) in terms of number, and followed by salpa (27.7%), chaetognatha (6.7%), and euphausia (1.3%). However ...
Meeting Document : WG-KRILL-91/14 : Autor(es): S.M. Kim and M.S. Suk (Korea)
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Evaluating length-frequency data and length-based performance indicators in new and exploratory fisheries
Abstract: Length-frequency data are routinely collected in CCAMLR’s fisheries and used as inputs ... to stock assessments. In CCAMLR’s new and exploratory fisheries, stock assessment techniques are ... still in development and robust conclusions on stock status based on length-frequency data alone have ... been difficult. In this paper, we show that length-frequency data on their own have little inherent ...
Meeting Document : WG-FSA-10/43 : Autor(es): P.E. Ziegler, D.C. Welsford and A.J. Constable (Australia)
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A false positive in the CCAMLR tag overlap statistic arising from low catch volume and consequent limited sample size
Abstract: The draft CCAMLR compliance report has recorded that when fishing in Subarea 88.2 in ... minimum of 60% as specified in CM 41-01. A review of the data indicates that the number of fish tagged was ... of fish tagged did not match closely with that of the catch resulting in a the overlap statistic, as ... as this and others if they have arisen, to determine how to provide advice to the Commission in cases ...
Meeting Document : WG-FSA-14/31 : Autor(es): C. Darby (United Kingdom)
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Integrating Climate and Ecosystem Dynamics in the Southern Ocean (ICED) program: developing ICED and CCAMLR joint activities
Abstract: The Integrating Climate and Ecosystem Dynamics in the Southern Ocean (ICED) programme ... valuable information for ecosystem-based management in the region. Following discussions between ICED and ... CCAMLR to develop joint activities in this regard, planning is underway for an ICED Workshop focussed on ... projections of change in Area 48- Developing projections of the future state of Southern Ocean ecosystems ...
Meeting Document : WG-EMM-17/36 : Autor(es): E. Murphy on behalf of ICED SSC
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Features of chronology and breeding success of Pygoscelis papua and Pygoscelis adeliae penguins in the Wilhelm Archipelago (CCAMLR Subarea 48.1)
Abstract: We aim to investigate the qualitative changes in the habitats of two most common ... species penguin populations in the Wilhelm Archipelago Pygoscelis papua (gentoo) and Pygoscelis adeliae ... (Adelie) penguins in the CCAMLR Subarea 48.1 under the impact of climate changes and krill fishery. To ... disturbance to the penguins, the new method of registration using time-lapse cameras have been installed in ...
Meeting Document : WG-EMM-18/P13 : Autor(es): I.V. Dykyy, G.P. Milinevsky, O.L. Savitsky, D.G. Lutsenko, P.B. Khoetsky, M.F. Veselsky, V.M. Smagol, A.O. Dzhulay, J.V. Tsaryk, K.M. Nazaruk, A.T. Zatushevsky, A.O. Simon and M.A. Telipska
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“Sailbuoy for krill” – a concept for autonomous commercial and scientific monitoring of the krill fishing in Antarctica
Abstract: Science based management of krill suffers from limitation of time-space information in ... distribution dynamics. Similarly, the industry burns unnecessary amounts of oil in long range searching of ... fishable biomass due to lack of density distribution information. In this paper, we demonstrate that new ... – science partnership in collecting environment and krill distribution data independent of vessel ...
Meeting Document : WG-EMM-18/15 : Autor(es): O.R. Godø, G. Pedersen, D. Peddie, G. Skaret, A. Lowther, F. Grebstad and A. Lohrmann
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Proposal for a skate tagging program in the Ross Sea region to estimate the local biomass trend for starry skates (Amblyraja georgiana)
for skates in the Ross Sea region, we summarise skate catch and mark-recapture data through the 2016 ... biomass. Much of the A. georgiana catch occurs in SSRUs 88.1H and 88.1I in an area remaining open to ... fishing with respect to the Ross Sea region Marine Protected Area. For consistency in comparisons, we use ... in the 2009 and 2010 fishing seasons to estimate local Chapman biomass using CCAMLR procedures for ...
Meeting Document : WG-FSA-18/38 Rev. 1 : Autor(es): S. Parker and M. Francis
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Modelling egg and larval transport of Antarctic toothfish (Dissostichus mawsoni) in the East Antarctic region: preliminary result using satellite data
larval transport of the Antarctic Toothfish in the East Antarctic region. This paper presents the ... observed in the experiment A-1, the majority of particles were advected eastward in the experiment A-2. A ... significant difference is that some particles reached southern shelf-slope zone (nursery ground) in the ... experiment A-2 because of effects of temporal eddy activities. In the northern continental slope region, most ...
Meeting Document : WG-FSA-2019/63 : Autor(es): M. Mori, K. Mizobata, T. Okuda and T. Ichii