Resultados de la búsqueda
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Rationale, structure and current templates of the Ecosystem, Productivity, Ocean, Climate (EPOC) modelling framework to support evaluation of strategies to subdivide the Area 48 krill catch limit amongst small-scale management units
Abstract: Since 2002, the Working Group on Ecosystem Monitoring and Management has been ... focussed on subdividing the region-wide krill catch limit in the southwest Atlantic into small-scale ... management units through a number of workshops. Computer simulations are being used by WG-EMM to evaluate the ... costs and benefits to achieving conservation and fishery objectives of the six different strategies for ...
Meeting Document : WG-SAM-07/14 : Autor(es): A. Constable (Australia)
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An Apparent Decrease in the Prevalence of “Ross Sea Killer Whales” in the Southern Ross Sea
Abstract: Killer whales (Orcinus orca), both ecotype-B and-C, are important to the Ross Sea ... , Antarctic ecosystem; the type-C is referred to as “Ross Sea [RS] killer whale”. Herein, we review data on ... occurrence patterns and diet of RS killer whales, and present new information on numbers observed in the ... southwestern Ross Sea, 2002- 2008. These “resident” whales appear to feed principally on fish, including the ...
Meeting Document : WG-EMM-09/P01 : Autor(es): D.G. Ainley, G. Ballard and S. Olmastroni
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On the consequences of differentiating between adult and sub-adult survival rates in the krill-predators model
Abstract: The krill-predators model is generalised by splitting post-first-year animals into ... adults and sub-adults, with different survival rates for these two groups. Broadly speaking, the sub ... -adult survival rate can be adjusted to ensure that the modelled predator population reflects observed ... : one reflects the difference between adult and sub-adult survival rates, while the other relates to the ...
Meeting Document : WG-EMM-95/39 : Autor(es): Butterworth, D.S., Thomson, R.B.
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Exploratory longline fishing around the Kerguelen Islands (Division 58.5.1). Description of the fishing effort; catchability and target size of Dissostichus eleginoides
Abstract: During the 1990/91 and 1991/92 fishing seasons, two longliners carried out exploratory ... fishing over the western shelf break of the Kerguelen shelf (Division 58.5.1). Scientific monitoring of ... . Bottom longlines are generally used at depths of 400 to 600 m. The mainline (1 to 2 miles long) carries ... about 2 400 to 3 600 straight hooks, which are from 61 to 75 mm in length. The bait used is either ...
Meeting Document : WG-FSA-92/31 Rev. 1 : Autor(es): G. Duhamel (France)
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The use of morphometric parameters for the determination of sex of Adelie penguins
Abstract: The ability to determine the sex of Adélie penguins by discriminant analysis of ... comparing the discriminant score D = 0.582 (bill length) + 1.12 (bill depth) + 0.219 (flipper width ... , cubitocarpal) with the mean discriminant score of 55.39. Males have a higher score and females a lower one. The ... sex of juvenile birds (identified by their white chins) cannot be determined by this method. The ...
Meeting Document : WG-CEMP-91/5 Rev. 1 : Autor(es): K.R. Kerry, D.J. Agnew, J.R. Clarke and G.D. Else (Australia)
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The development of spatially and temporally controlled measures of survival and tag-detection for the CCAMLR tagging program
Abstract: A reliable commercial tagging program is critical to the successful assessment and ... management by CCAMLR of a number of toothfish fisheries in Antarctica. The evaluation of the tagging ... programme relies on two key aspects (i) that the tagged fish have a good chance of survival and (ii) that ... the tagged fish are reliably detected when recaptured. Previous attempts to evaluate individual vessel ...
Meeting Document : WG-SAM-12/30 : Autor(es): S. Mormede and A. Dunn (New Zealand)
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Preliminary report of outcomes of the 2nd international workshop on the ICED Southern Ocean Sentinel, held in Hobart Australia 7–11 May 2012
Abstract: The 2nd international workshop on the ICED Southern Ocean Sentinel was held at CCAMLR ... Headquarters on 7-11 May 2012 in Hobart, Australia, hosted by the Australian Antarctic Division and the ... the discussion on strategies for measuring change in Southern Ocean marine ecosystems, including ship ... -based and land-based monitoring and integrated studies. The workshop agreed a work plan for ...
Meeting Document : WG-EMM-12/59 : Autor(es): A. Constable (Australia)
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Fatty acid and stable isotope analyses to identify diets of Antarctic toothfish caught in February–March 2013 in the southern Ross Sea (88.1.K) and the eastern Antarctic Sea (58.4.1.C)
Abstract: To identify the important prey items for pre-recruit Antarctic toothfish in the SSRUs ... 88.1.K of the southern Ross Sea and 58.4.1.C of the eastern Antarctic Sea, their fatty acid (FA ... from commercial fishing vessel in February-March 2013. Similarities in total FA compositions and the FA ... profiles in muscle tissue of Antarctic toothfish, bycatch specimen (Channichthyidae), and icefish in the ...
Meeting Document : WG-FSA-13/42 : Autor(es): I. Yeon, Y.J. Kwon, S.G. Choi, D.W. Lee and C.-K. Kang (Republic of Korea)
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Developing high-resolution hydrodynamic models of the shelf regions around South Georgia and the South Orkney Islands
Abstract: Many of the key oceanographic and ecological processes that determine the structure and ... functioning of ecosystems in the regions around South Georgia and the South Orkney Islands operate over small ... scales of <10 km. This paper reports the initiation of a project to develop high-resolution ... hydrodynamic models that will be used to examine the detailed oceanography of the South Georgia and South ...
Meeting Document : WG-EMM-14/08 : Autor(es): E.J. Murphy, E.F. Young, S.E. Thorpe, P.N. Trathan (United Kingdom) and O.R. Godø (Norway)
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Proposal to continue participation in the second year of the joint CCAMLR research survey to collect spatially stratified longline and bathymetric data in 88.2_A and 88.2_B in 2015/16
Abstract: Toothfish in SSRUs 882.A–B are currently managed as part of the Ross Sea region stock ... , but the stock structure and fish movement patterns are uncertain and more information is required for ... the management across all of the region. Recognising this requirement, the Scientific Committee ... endorsed two years of spatially stratified longline surveys in the northern region of SSRUs 88.2A–B (SC ...
Meeting Document : WG-SAM-15/41 : Autor(es): Delegation of Norway