Resultados de la búsqueda
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Contrasting population changes in sympatric penguin species in association with climate warming
climate perturbations on the sea ice phenology affect the marine ecosystem, with repercussions for penguin ... conditions for some species. These include the congeneric Adélie, chinstrap and gentoo penguins, which now ... ice adapted gentoo penguins increased significantly in numbers over the last 26 years, whereas ... food supply and competition for resources. Ultimately, variability in penguin populations with warming ...
Meeting Document : WG-EMM-06/P3 : Autor(es): J. Forcada, P.N. Trathan, K. Reid, E.J. Murphy and J.P. Croxall (United Kingdom)
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Metabarcoding analysis of zooplankton collected from Division 58.4.1 in 2014/15 using NGS platform
reliable data with relatively low cost. Resulting NGS sequencing two different sized zooplankton ... large-sized (>1 mm) and small-sized (< 1mm) fractions, respectively. Based on the low numbers of ... zooplankton survey using the NGS technology for its low cost and time for the analysis. Author(s): Delegation ... Workflow Status: Content Approved Delegation responsibility for releasing documents: Korea, Republic of ...
Meeting Document : WG-EMM-16/33 : Autor(es): Delegation of the Republic of Korea
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Analysis of trawl data from the South Georgia krill fishery
focussed, operating in a limited area along the shelf edge on the northern coast of the island. Each day a ... trawls were examined to establish the time required for each phase of the operation. The times associated ... variability. The range of measurements indicate that differences existed between years. Particular aspects of ...
Meeting Document : WG-EMM-97/41 : Autor(es): Parkes, G., Trathan, P.N., Everson, I., Murphy, E.J.
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Multiyear changes in distribution and abundance of Salpa thompsoni in the Western Antarctic Peninsula region
productivity and high water temperature. In recent years the expansion of distribution range of this ... caused by ocean warming and variability in sea ice extent. The presented time series is based on samples ... responsibility for releasing documents: CCAMLR Secretariat ...
Meeting Document : WG-EMM-16/75 : Autor(es): A. Panasiuk, A. Słomska, J. Wawrzynek, M. Konik and A. Weydmann
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Seabird by-catch and bait loss in longlining using different setting methods
minor problem in this fishing experiment. Suggestions on how to improve the efficiency of the two ... killed, while the associated bait loss may have serious impact on longlining efficiency and profitability ... . Two different setting methods were tested as a solution to this problem; lines were set either through ...
Meeting Document : WG-FSA-96/06 : Autor(es): Løkkeborg, S.
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The age structure and growth rate of Patagonian toothfish (Dissostichus eleginoides) at South Georgia
. Evidence for the separation of early year classes is presented along with mean sizes for each age class ... Abstract: New length-at – age data for South Georgia toothfish are presented from a range of ... . Age length keys indicate that fish enter the fishery at 7 years and are fully recruited at between 10 ... and 11 years. Author(s): M. Belchier (United Kingdom) Title: The age structure and growth rate of ...
Meeting Document : WG-FSA-04/86 : Autor(es): M. Belchier (United Kingdom)
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Seasonal variation in the diet of Arctocephalus gazella at 25 de Mayo/King George Island, South Shetland Islands, Antarctica
Abstract: The trophic study of Arctocephalus gazella is an essential tool for assessing its ... winter 2004 and summer 2004/05 on the coasts of Stranger Point, Isla 25 de Mayo/King George. For the ... diet during an annual cycle. To our knowledge, this is the first report of the feeding habits of A ... concluded that fur seals centred their foraging activity on a krill community and fish associated with krill ...
Meeting Document : WG-EMM-15/37 : Autor(es): A. Harrington, G.A. Daneri, A.R. Carlini, D.S. Reygert and A. Corbalán (Argentina)
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Estimating density and biomass of Antarctic krill (Euphausia superba) around South Shetland using the 2-dB difference method
estimated using an acoustics survey. Acoustic data were collected with 38 and 120 kHz from April 13 to 24 in ... 2016 and 38 and 200 kHz from March 6 to 14 and 38 and 120 kHz on April 27 and May 5 in 2017. Krill were ... CCAMLR standard protocols using swarm integration (SHAPES module within that software for swarm ... identification) based on data from a transect-based survey. The weighted krill density and biomass were estimated ...
Meeting Document : SG-ASAM-18/08 : Autor(es): S. Choi, K. Lee and D. An
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Historical data synthesis in the Southern Ocean: Priority data sets
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 ... summaries of relevant data sets which we will collate in an open access document. This document should ... make data available for analysis. Author(s): N.M. Johnston, E.J. Murphy, J.R.D. Silk, C.M. Waluda ...
Meeting Document : WG-EMM-13/19 : Autor(es): 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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Exploration of CPUE standardisation variances in the Ross Sea (Subareas 88.1 and 88.2A South of 70°s) Antarctic toothfish (Dissostichus mawsoni) exploratory longline fishery
Abstract: Catch rates or catch per unit of effort (CPUE) are used for data-poor exploratory ... interim of collecting sufficient tag recaptures. Here, we address the two questions: (1) which unit of ... effort should be used for catch rates in mixed longline fisheries, and (2) how do different parameters ... total number of hooks per line for autoline and Spanish line and total number of clusters for trotline ...
Meeting Document : WG-SAM-2019/25 : Autor(es): D. Maschette, S. Wotherspoon and P. Ziegler