Resultados de la búsqueda
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Proposal for an acoustic krill biomass survey in CCAMLR Subarea 48.1 in relation to the hydrological environment and in conjunction with carbon cycling and temperature adaptation experiments of krill and salps
Abstract: As part of the German contribution to Convention for the Conservation of Antarctic ... CCAMLR division 48.1 during April 2018. The survey will be part of a larger research cruise (PS112 ... ) investigating the role of krill and salps in Southern Ocean carbon cycling and the temperature adaptation ... capacities of both species in the context of climate change. Acoustic survey and physiological experiments ...
Meeting Document : WG-EMM-17/39 : Autor(es): B. Meyer, L. Suberg, S. Fielding, O.R. Godø and C. Reiss
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The random stratified trawl survey to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari in the waters surrounding Heard Island (Division 58.5.2) for 2017
Abstract: The annual random stratified trawl survey (RSTS) of 2017 at HIMI was conducted during ... April, with the completion of 163 stations. The survey has been conducted on the FV Atlas Cove since ... 2015. Sampling protocols such as the design and the duration of the hauls were similar to recent ... surveys, but with a new set of randomly selected station points. The unstratified density of Dissostichus ...
Meeting Document : WG-FSA-17/14 Rev. 1 : Autor(es): G.B. Nowara, T.D. Lamb and P. Ziegler
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Integrated environment–prey–predator interactions off South Georgia: implications for management of fisheries
Abstract: The oceanography of the South Georgia region is principally that of the Southern Ocean ... rather than the South Atlantic. A combination of factors, including advection, local bathymetry and high ... local productivity, leads to relatively large concentrations of krill (Euphausia superba) in the region ... and this is a food source for large populations of penguins and seals that breed at South Georgia. A ...
Meeting Document : WG-EMM-01/27 : Autor(es): I.L. Boyd (United Kingdom)
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Factors affecting the number and mortality of seabirds attending trawlers and longliners in the Kerguelen area
Abstract: The factors affecting the number and the mortality of seabirds attending long-liners ... ), based on observations carried out onboard by dedicated observers. Twenty-four species of seabirds were ... mainly according to the year, the cloud cover and the presence of offal for long-liners. The dumping of ... offal increased the numbers of birds attending the vessel, especially when offals can be handled easily ...
Meeting Document : WG-FSA-99/26 : Autor(es): H. Weimerskirch, D. Capdeville and G. Duhamel (France)
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Preliminary acoustic results from the New Zealand IPY-CAML survey of the Ross Sea region in February-March 2008
Ross Sea region in support of the International Polar Year Census of Antarctic Marine Life (IPY-CAML ... ). The 50 day voyage on the research vessel Tangaroa involved an extensive survey of marine organisms ... , and from the continental shelf and slope of the Ross Sea to unexplored seamounts and abyssal plains ... trawls were carried out at randomly selected locations over the shelf as part of the core biodiversity ...
Meeting Document : SG-ASAM-09/05 : Autor(es): R. O’Driscoll, G. Macaulay, S. Gauthier, M. Pinkerton and S. Hanchet (New Zealand)
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Cetaceans as indicators of historical and current changes in the East Antarctica ecosystem
factors. This paper reviews the scientific information of whales that could be indicative of changes in ... the East Antarctica ecosystem in the context of two hypotheses, the ‘krill surplus’ hypothesis in the ... middle of the past century and the recovery of krill-eater large whales since the 1980’s. There was an ... interest to investigate the effects of those events on other krill predators such as the Antarctic minke ...
Meeting Document : WG-EMM-16/64 : Autor(es): Y. Fujise and L.A. Pastene
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SUMMER SURVEY OF FUR SEALS AT PRINCE EDWARD ISLAND, SOUTHERN INDIAN OCEAN
Abstract: The onshore distributions and the abundances of Antarctic fur seals Arctocephalus ... the entire south-west coast of Prince Edward Island. Of the two colonies of Antarctic fur seals, the ... colony among Subantarctic fur seals north of Boggel Beach remained small, with increased numbers of ... remained free of Subantarctic fur seals and had expanded at a mean intrinsic rate of natural increase of ...
Meeting Document : WG-EMM-10/P15 : Autor(es): M.N. Bester, P.G. Ryan and J. Visagie
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Changes in the foraging range of Adélie penguins as the breeding season progresses
season of Adélie penguins nesting at Béchervaise Island on the Mawson coast of Eastern Antarctica. A ... decade’s worth of satellite tracking data was loaded into geographical information systems (GIS) software ... to produce maps of where the penguins travel to feed during each of the incubation, guard, crèche and ... pre-moult stages of the breeding cycle. 2. Penguins ranged furthest north during incubation and made ...
Meeting Document : WG-EMM-04/57 : Autor(es): J. Clarke and L. Emmerson (Australia)
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Using digital video monitoring systems in fisheries: applications for monitoring compliance of seabird avoidance devices and seabird mortality in Pacific halibut longline fisheries
Halibut Commission (IPHC) for a project examining the feasibility of electronic monitoring systems (EMS ... ) in the Pacific halibut longline fleet operating off the state of Alaska. The project was conducted on ... two of the IPHC stock assessment survey vessels fishing in Alaska during 2002. The objectives of the ... project were to: 1) examine the ability of an electronic monitoring system to provide images that would ...
Meeting Document : WG-FSA-04/24 : Autor(es): R.T. Ames, G.H. Williams and S.M. Fitzgerald (USA)
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The effect of temporal variability on power analysis predictions for Adélie penguin CEMP parameters at Béchervaise Island
this paper have similar power estimates because their estimates of temporal variability are comparable ... Abstract: There are unresolved issues surrounding the use of power analyses for examining the ... ability of CEMP data to detect change. The effect size that should prompt a response if observed in a ... parameter and the likely response of parameters such as arrival or fledgling weights are two of these issues ...
Meeting Document : WG-EMM-03/49 : Autor(es): L.M. Emmerson and C. Southwell (Australia)