Resultados de la búsqueda
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Cruise Report – Research Project: Demersal finfish distribution, abundance, and their biological characteristics in Statistical Subareas 48.1 (northern area) and 48.2
48.2 (South Orkney Island). The sampling stations were set in approximately the same geographical ... , 2012) and on shelf areas of the South Orkney Islands according to a subsample of stations sampled by ... the R/V ' Yuzhmorgeologiya ' (Jones & Kock, 2009). The cruise took place 6-27 January ... , 2018, primarily using a Hardbottom Snapper trawl (NET Systems, Inc.), previously used by the US AMLR ...
Meeting Document : WG-SAM-18/25 : Autor(es): Delegation of Chile
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Stable isotope analysis of Southern Ocean fish tissue samples to investigate trophic linkages of Antarctic toothfish (Dissostichus mawsoni)
fishing vessels during the 2005/06 season in the Ross Sea CCAMLR Subarea 88.1 in order to investigate ... three trophic levels exist between icefish occupying the lowest trophic level, and Antarctic toothfish ... occupying the highest level. Some Antarctic toothfish sampled in this study occupied a similar trophic level ... according to their?15N signatures to killer whales and Weddell seals in McMurdo Sound, bluefin tuna in the ...
Meeting Document : WG-EMM-07/19 : Autor(es): M.H. Pinkerton, S. Bury, S.M. Hanchet and D. Thompson (New Zealand)
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Revised assessment models for Patagonian toothfish in research block C of Division 58.4.4, Ob and Lena Banks
assessments of Dissostichus eleginoides in research block C in Division 58.4.4 b following the recommendation ... during the latest WG-SAM meeting. The six models with three kinds of assumptions on IUU catch were ... arranged referring to WG-SAM-14/18 as follows: 1) catch at length/age models on the assumption of no IUU ... within the model using disease mortality functionality (Len_2/AgeSing_2 models), 3) catch at length/age ...
Meeting Document : WG-FSA-14/23 : Autor(es): K. Taki (Japan)
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Variability and predictability of Antarctic krill swarm structure
Abstract: Swarming is a fundamental part of the life of Euphausia superba, yet we still know very ... little about what drives the considerable variability in swarm shape, size and biomass. We examined ... swarms across the Scotia Sea in January and February 2003 using a Simrad EK60 (38 kHz, 120 kHz ... ) echosounder, concurrent with net sampling. The acoustic data were analysed through applying a swarm ...
Meeting Document : WG-EMM-10/P10 : Autor(es): G.A.Tarling, T. Klevjer, S. Fielding, J. Watkins, A. Atkinson, E. Murphy, R. Korb, M. Whitehouse and R. Leaper
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Ross Sea Bioregionalisation, Part II: Patterns of co-occurrence of mesopredators in an intact polar ocean ecosystem
Abstract: We report results of analyses of niche occupation among mesopredators in the Ross Sea ... the surface of the ocean, 2) capacity to utilize differing amounts of the water column (foraging depth ... and Snow petrel. The apex predators, Leopard Seal and Killer Whale ecotype A/B, were not included ... ). Data on depth of diving and diet were taken from the literature. Three patterns of horizontal spatial ...
Meeting Document : WG-EMM-10/12 : Autor(es): G. Ballard, D. Jongsomjit and D.G. Ainley (USA)
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AN ECOSYSTEM-BASED MANAGEMENT PROCEDURE FOR KRILL FISHERIES: A METHOD FOR DETERMINING SPATIALLY-STRUCTURED CATCH LIMITS TO MANAGE RISK OF SIGNIFICANT LOCALISED FISHERIES IMPACTS ON PREDATORS.
single-species assessment of yield, and a method for implementing the procedure. The decision rule for ... setting catch limits for a given harvest strategy has a straight forward expression of the target ... conditions to be achieved and the uncertainties that need to be managed and does not assume an understanding ... of predator-prey dynamics beyond that evident in the data. It is a natural extension of the current ...
Meeting Document : WG-SAM-08/16 : Autor(es): A. Constable and S. Candy (Australia)
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Uncertainty in acoustic surveys of Antarctic krill
acoustic surveys. The variance in system calibration with a standard sphere was evaluated in relation to ... bias was investigated by comparing the theoretical and actual target strength (TS) values of four ... different standard spheres with the results of a calibration by self-reciprocity (Demer and Hewitt ... , submitted). Combining the results of these experiments, the accuracy and precision of a system calibration ...
Meeting Document : WG-EMM-95/72 : Autor(es): Demer, D.A.
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An ecosystem-based management procedure for krill fisheries: a method for determining spatially-structured catch limits to manage risk of significant localised fisheries impacts on predators
single-species assessment of yield, and a method for implementing the procedure. The decision rule for ... setting catch limits for a given harvest strategy has a straight forward expression of the target ... conditions to be achieved and the uncertainties that need to be managed and does not assume an understanding ... of predator-prey dynamics beyond that evident in the data. It is a natural extension of the current ...
Meeting Document : WG-EMM-15/36 : Autor(es): A. Constable and S. Candy (Australia)
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WG-FSA-05
documents Doc Number Title WG-FSA-05/1 Provisional Agenda and Provisional Annotated Agenda for the 2005 ... Meeting of the Working Group on Fish Stock Assessment (WG FSA) WG-FSA-05/10 Summary of an observation ... aboard a pot vessel operating in the Convention Area during the 2004/05 season Secretariat WG-FSA-05/11 ... ) and G. Duhamel (France) WG-FSA-05/12 Program of research to improve the seabird by-catch mitigation ...
Meeting
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SCIC-06
/01 Provisional Agenda for the 2006 Meeting of the CCAMLR Standing Committee on Implementation and ... notified to participate in exploratory fisheries in the 2006/07 season Secretariat SCIC-06/05 Rev. 1 Catch ... consideration under Conservation Measures 10-06 and 10-07 Secretariat SCIC-06/07 Extracts from the reports of ... the Working Group on Fish Stock Assessment (total removals of Dissostichus spp. Including IUU catches ...
Meeting