Resultados de la búsqueda
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A preliminary proposal to conduct a local survey of the Champsocephalus gunnari by the midwater trawl in the Statistical Subarea 48.2
stations (trawlings) points in the statistical Subarea 48.2. The main objective of the research is to ... determine the distribution and abundance of mackerel icefish in Subarea 48.2. Author(s): Delegation of ... midwater trawl in the Statistical Subarea 48.2 Approval: Approved Secretariat Workflow Status: Content ...
Meeting Document : WG-SAM-2019/24 : Autor(es): Delegation of Ukraine
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Acoustic and underwater survey of the Argentine Islands (West Antarctic) water area for development of network of testing sites in the summer season of 2019
Abstract: In the summer season of 2019 (February-April), acoustic and underwater studies of the ... a network of underwater testing sites in the water area of the Argentine Islands. Author(s): A ... Argentine Islands (West Antarctic) water area for development of network of testing sites in the summer ...
Meeting Document : WG-EMM-2019/19 : Autor(es): A. Utevsky, D. Smyrov, E. Sinna, M. Shrestha and S. Utevsky
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Ecological risk management and the fishery for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea, Antarctica
an ecological risk assessment for Antarctic Toothfish (Dissostichus mawsoni) longline fishery in the ... . Risks are considered in 4 categories: 1. Target species harvest: Risks of depletion of Antarctic ... species. 4. Exogenous effects: Risks of change in the marine ecosystem due to, or exacerbated by ... ecosystem mass-balance models can provide insights into these factors for some risks. In addition, semi ...
Meeting Document : WG-EMM-07/24 : Autor(es): M.H. Pinkerton, A. Dunn and S.M. Hanchet (New Zealand)
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A quantified Bayesian maximum entropy estimate of Antarctic krill abundance across the Scotia Sea and in small-scale management units from the 2000 CCAMLR survey
Bayesian framework also allows an intrinsic calculation of the error in any resulting density estimate ... . During the survey, data were integrated at approximately 1 nm intervals, resulting in 9,586 observed data ... ) were calculated for all 1,726,332 pixels in the reconstructed area. The MaxEnt maps of the density ... of krill in each of the SSMUs was: Antarctic Peninsula Pelagic Area (APPA) 65.192 Mt; Antarctic ...
Meeting Document : WG-EMM-05/42 : Autor(es): B.G. Heywood, S.F. Gull and A.S. Brierley (United Kingdom)
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Assessment of krill biomass in fishing grounds using the data on fishing intensity and hydroacoustic method
krill biomass estimate produced by the echo integrating apparatus used in the layer fished with the ... trawl. As applied to the estimate of trawl catchability in the krill fishery, this method is reliable ... fishing trawls in order to illustrate the closeness of the two methods. The estimates of the krill biomass ... integrating apparatus are also compared. Theoretical bases of the calculation methods used are stated in a ...
Meeting Document : SC-CAMLR-VIII/BG/10 : Autor(es): USSR
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Pilot study on electrophoretic variation and stock structure in the mackerel icefish, Champsocephalus gunnari, South Georgia waters
Abstract: The use of allozymes as a tool in stock structure analysis was examined in the ... stock separation among samples in South Georgia waters. Four samples (116 individuals) of icefish were ... indicate that localised stocks of C. gunnari exist in South Georgia waters. The questions posed by the non ... : Pilot study on electrophoretic variation and stock structure in the mackerel icefish, Champsocephalus ...
Meeting Document : WG-FSA-90/10 : Autor(es): G.R. Carvalho and D.P. Lloyd-Evans (United Kingdom)
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Towards a strategic framework for assessing uncertainty in ecosystem dynamics models: objectives are sensitive too
candidate feedback management approaches for the Antarctic krill fishery in the southern Drake Passage and ... advice each required values for 2,311 distinct inputs. In the absence of guidance about management ... reference points, the modellers provided advice in terms of 41 illustrative reference points intended to ... . There is a global need to develop strategic frameworks for assessing uncertainty in ecosystem dynamics ...
Meeting Document : WG-EMM-12/20 Rev. 1 : Autor(es): S. Hill and J. Matthews (United Kingdom)
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An integrated stock assessment for the Heard Island and the McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery in Division 58.5.2
eleginoides) fishery at the Heard Island and the McDonald Islands in CCAMLR Division 58.5.2 with data until ... from 2014 (complete) and 2015 (partial), (c) an updated growth model, (d) changes in priors for survey ... stock biomass B 0 than that obtained in 2014, with an MCMC estimate of 87 077 tonnes (95% CI: 78 500-97 ... 547 tonnes). Estimated SSB status in 2015 was 0.64 (95% CI: 0.59-0.69). Using this model, a catch ...
Meeting Document : WG-FSA-15/52 : Autor(es): P. Ziegler and D. Welsford (Australia)
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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 ... from viruses to pelagic and demersal fish and cephalopods in depths from the surface down to 3500 m ... antarcticum). Silverfish are a key link between plankton and the community of top predators in the shelf ... m depth and were sometimes present close to the bottom, where they were frequently caught in ...
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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Draft integrated stock assessment for the Heard Island and McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery in Division 58.5.2
eleginoides) fishery at Heard Island and McDonald Islands (HIMI) in CCAMLR Division 58.5.2 with catch until ... than that obtained in 2017, with an MCMC estimate of 70 519 tonnes (95% CI: 65 634- 76 626 tonnes). The ... predicted drop in SSB status by 2021, the time of the next stock assessment, was largely independent of the ... estimate recent trends in YCS, the 2021 assessment will inform any decision whether further catch ...
Meeting Document : WG-FSA-2019/32 : Autor(es): P. Ziegler