Resultados de la búsqueda
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Outline for year 2 of the 3-year longline survey to determine toothfish population connectivity between Subareas 48.2 and 48.4
Abstract: This paper outlines the specific research objectives and plan to achieve them for the ... second year of an agreed 3-year longline survey, in the wider context of connecting the recently ... undertaken surveys in Subarea 48.2 with the established fishery in Subarea 48.4. The overall research ... distributions of benthic bycatch species. This paper reiterates the key points of WG-SAM-17/34, updates ...
Meeting Document : WG-FSA-17/45 : Autor(es): M. Söffker and M. Belchier
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Predicting fishing ground accessibility in the Antarctic Weddell Sea
Abstract: Sea ice is a major constraint of fishery performance in the Southern Ocean seasonal sea ... ice zone. We use sea ice concentration data from 2002-2017 that cover the wider Weddell Sea to ... establish statistical models of (i) accessibility, i.e. the probability that a particular area is navigable ... by fishery vessels at a given time, and of (ii) repeated accessibility, i.e. the probability that a ...
Meeting Document : WG-SAM-18/01 : Autor(es): H. Pehlke, K. Teschke and T. Brey
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Analyses of ice conditions in the research area proposed by Ukraine for a multi-year Dissostichus research program in Statistical Subarea 48.1
Abstract: The Ukraine submitted to WG SAM 2018 a proposal for a new toothfish research program in ... Subarea 48.1 (see document WG-SAM-18/11). The research area, which Ukraine intends to use for the new ... fisheries research program, is located within CCAMLR Subarea 48.1. Detailed analyses of the sea ice ... concentration and the repeated accessibility of this research area were carried out using the method presented ...
Meeting Document : WG-FSA-18/01 : Autor(es): H. Pehlke, S. Hain, K. Teschke and T. Brey
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Fish by-catch in the krill fishery: 2018 update
Abstract: Data on fish bycatch in the krill fishery from commercial catch data (120 949 hauls ... ) and CCAMLR SISO data (17 455 hauls) up to 20 Sept 2018 was used to examine the frequency of occurrence ... , length-frequency distribution and geographic provenance of the key fish taxa reported. There is an ... increase in the data quality from the observer scheme and an increase in the frequency of fish bycatch in ...
Meeting Document : WG-FSA-18/10 : Autor(es): CCAMLR Secretariat
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Community structure of epipelagic macrozooplankton in the Ross Sea
Abstract: During the 9th research cruise of the R/V Kaiyo-maru, macrozooplankton samples were ... collected from three layers between the surface and 200 m with RMT 8m2 along the three longitudinal lines in ... the Ross Sea and neighboring waters. Biomass and abundance (number of individuals) were 0 ~ 32.1 g ... extremely low at stations on the continental shelf along 175°E and 170°W except the southern most station ...
Meeting Document : WG-EMM-07/34 Rev. 1 : Autor(es): Y. Watanabe, S. Sawamoto, T. Ishimaru and M. Naganobu (Japan)
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Review of CCAMLR activities on monitoring marine debris in the Convention Area
Abstract: The current status of national surveys on monitoring of marine debris and their impact ... on marine mammals and seabirds in the Convention Area has been reviewed. The CCAMLR Marine Debris ... debris, principally packaging items, fishing gear, and wood items, reached a peak in the period 1994-1996 ... at Bird Island and Signy Island, but have declined. The number of debris items found had increased in ...
Meeting Document : SC-CAMLR-XXV/BG/09 : Autor(es): Secretariat
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Shipboard line transect surveys of crabeater seal abundance in the pack-ice off East Antarctica: evaluation of assumptions
Abstract: The extent to which the assumptions underlying line transect sampling are satisfied in ... shipboard surveys of crabeater seals hauled-out on the Antarctic pack-ice is examined. Crabeater seals ... showed little movement in response to the approaching ship. Movement away from the ship by seals close to ... the ship’s track was partially responsible for a relative lack of sightings close to the transect-line ...
Meeting Document : WG-EMM-04/64 : Autor(es): C. Southwell, W. de la Mare (Australia), D. Borchers and L. Burt (United Kingdom)
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Relationship between Antarctic krill (Euphausia superba) variability and westerly fluctuations and ozone depletion in the Antarctic Peninsula area
Abstract: An assessment of the environmental processes influencing variability in the recruitment ... affects the Antarctic marine ecosystem as a whole. We have assessed variability in krill recruitment and ... ) determined from sea level pressure differences across the Drake Passage, sea ice cover, and ozone depletion ... . We found a significant positive correlation between krill recruitment in the Antarctic Peninsula area ...
Meeting Document : WG-EMM-99/52 : Autor(es): M. Naganobu, K. Kutsuwada, Y. Sasai and T. Taguchi (Japan) and V. Siegel (Germany)
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Diet and foraging effort of Adélie penguins in relation to pack-ice conditions in the southern Ross Sea
Abstract: We investigated the diet and aspects of foraging effort among Adélie Penguins ... Pygoscelis adeliae breeding at three colonies on Ross Island, in the southwestern Ross Sea-- Capes Royds ... , Bird and Crozier-- during the chick provisioning period of three austral summers, 1994-95, 1995-96 and ... 1996-97. During the study period, pack-ice cover differed in waters offshore of these colonies, by ...
Meeting Document : WG-EMM-98/15 : Autor(es): D.G. Ainley (USA), P.R. Wilson, K.J. Barton (New Zealand), G. Ballard, N. Nur (USA) and B. Karl (New Zealand)
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TIMING OF CLUTCH INITIATION IN PYGOSCELIS PENGUINS ON THE ANTARCTIC PENINSULA: TOWARDS AN IMPROVED UNDERSTANDING OF OFF-PEAK CENSUS CORRECTION FACTORS
Abstract: Penguin censuses on the Antarctic Peninsula are often subject to logistical challenges ... that preclude nest censuses being conducted at the peak of egg laying as established by the CCAMLR ... Ecosystem Monitoring Program (CEMP) (Scientific Committee for the Conservation of Antarctic Marine Living ... Resources 2004). Additionally, the historical literature, necessary for establishing baseline conditions ...
Meeting Document : WG-EMM-PSW-08/15 : Autor(es): H.J. Lynch, W.F. Fagan, R. Naveen, S.G. Trivelpiece and W.Z. Trivelpiece (USA)