Search results
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Diet and prey consumption of Antarctic petrels Thalassoica antarctica at Svarthamaren, Dronning Maud Land and at sea outside the colony
Abstract: The diet of the Antarctic petrel Thalassoica antarctica was studied during two years at ... Svarthamaren, an inland colony situated in Dronning Maud Land, Antarctica and in the pack-ice outside ... Svarthamaren. The analyses showed that the most important food (wet weight) at Svarthamaren was Crustaceans (68 ... %), followed by fish (29%) and squid (3%), whereas individuals collected in the pack ice took mostly fish (95 ...
Meeting Document : WG-EMM-97/58 : Author(s): Røv, N., Lorentsen, S., Klages, N.
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Tests for anomalous years in the CCAMLR index series (draft)
Abstract: The properties of a method for detecting anomalous years in CCAMLR index series are ... obtained on the assumption that the series being considered consists of random values from a constant ... normal distribution. This idea is extended to situations (a) where the series values are still normally ... distributed, but contain a linear trend and autocorrelation, and (b) where the series values are from some ...
Meeting Document : WG-EMM-Stats-97/06 : Author(s): MacKenzie, D., Manly, B.F.
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Distribution of salps near the South Shetland Islands during austral summer, 1990/1991 with special reference to krill distribution
investigated near the South Shetland Islands during austral summer 1990-1991. Salp biomass ranged between 0 and ... 556 mgC•m-3 and was greatest at a station in the Bransfield Strait in late December 1990. Salp biomass ... found, and the former was dominant numerically. Spatial distribution and generation composition of these ... so the January-February period. While E. superba was found mainly in the coastal area which showed ...
Meeting Document : WG-EMM-95/54 : Author(s): Terazaki, M., Ichii, T., Kawaguchi, K., Nishikawa, J., Ishii, H., Naganobu, M.
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Continuation of multi-Member research on the Dissostichus eleginoides exploratory fishery in 2018/19 in Division 58.4.3a by France and Japan
Abstract: In Division 58.4.3a, since 2012, research fishing has been conducted in the research ... “Mascareignes III” (France). The first Franco-Japanese exploratory longline fishery research plan for ... October 2017, the Scientific Committee agreed that the research plan is appropriate to achieve its ... their exploratory fisheries in Division 58.4.3a over the coming years in order to contribute to the ...
Meeting Document : WG-SAM-18/08 : Author(s): Delegations of France and Japan
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Evidence to support the annual formation of growth zones in otoliths of Antarctic toothfish (Dissostichus mawsoni)
Abstract: Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea (CCAMLR sub-area 88.1 ... ) have been aged assuming that one translucent zone is formed annually in the otoliths of this species ... . However, no evidence to validate this assumption has previously been presented. In the current work ... before recapture. The number of zones between the fluorescent oxytetracycline line and the otolith margin ...
Meeting Document : WG-FSA-02/33 : Author(s): P.L. Horn, C.P. Sutton (New Zealand) and A.L. DeVries (USA)
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USING GENETIC CONNECTIVITY TO IDENTIFY VULNERABLE MARINE ECOSYSTEMS (VMES) IN ANTARCTICA – THE ISSUE OF SCALE
is valuable for understanding the potential resilience of benthic communities under threat from ... bottom fishing. Genetic connectivity allows insight into the realized dispersal of organisms, i.e. the ... likelihood of new recruits arriving from surrounding areas. Despite the wide distribution patterns shown by ... isolated island regions e.g. South Georgia, the South Orkneys, Bouvet Island. The exception to this was the ...
Meeting Document : WS-VME-09/06 : Author(s): Wilson, N.G.
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Acoustic visualization of the three-dimensional prey field of foraging chinstrap penguins
Abstract: Predator-prey interactions play an important role in determining the dynamics of ... ecosystems. Recently, concerns have arisen due to the commercial harvesting of Euphausia superba, the ... Antarctic krill, a keystone prey species in the Southern Ocean food web. It has been difficult to evaluate ... these concerns because of problems associated with determining the availability of krill to their ...
Meeting Document : WG-Joint-94/12 : Author(s): J.E. Zamon, C.H. Greene, E. Meir, D.A. Demer, R.P. Hewitt and S. Sexton (USA)
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Historical data synthesis in the Southern Ocean: Priority data sets
Abstract: As part of its long-term goal, ICED encourages the rescue and integration of existing ... data sets to enable investigation of long-term, large-scale ecosystem dynamics across the Southern ... give an example of an historical data rescue project that is being conducted by ICED scientists at the ... British Antarctic Survey, centred on the first comprehensive oceanographic research campaign in the ...
Meeting Document : WG-EMM-13/19 : Author(s): N.M. Johnston, E.J. Murphy, J.R.D. Silk, C.M. Waluda, S.L. Hill and R.D. Cavanagh (United Kingdom) on behalf of the ICED Scientific Steering Committee
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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 ... Database contains data from 11 sites, all within the Area 48 of which there are 3 sites that have data form ... , reached a peak in the period 1994–1996 at Bird Island and Signy Island has declined thereafter. The level ...
Meeting Document : SC-CAMLR-XXII/BG/25 : Author(s): Secretariat
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FISHING ACTIVITY AND SEABIRD-VESSEL ATTENDANCE NEAR THE NORTHERN ANTARCTIC PENINSULA
Abstract: We conducted a survey to investigate the factors influencing the number of seabirds ... attending a research vessel during scientific trawling activities near the northern Antarctic Peninsula. Our ... fishing activity. Counts of seabirds attending the vessel were made during non-fishing periods, net ... seabird attendance. Three species, the Black-browed Albatross Thalassarche melanophrys, Cape Petrel ...
Meeting Document : WG-FSA-08/11 : Author(s): Jarrod A. Santora and Kimberly S. Dietrich (USA) and Darci Lombard (Canada)