Résultats de la recherche
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Warming effects in the Western Antarctic Peninsula Ecosystem: the role of population dynamic models for explaining and predicting penguin trends
Abstract: The Western Antarctica Peninsula and Scotia Sea ecosystems appear to be driven by ... . The Adélie (Pygoscelis adeliae). Chinstrap (P. antarctica) and Gentoo (P. papua) penguins appear to be ... influenced by the inter-annual variability in the sea-ice extent and krill biomass. In this paper we ... developed simple conceptual models for decipher the role of climate and krill fluctuations on the population ...
Meeting Document : WG-EMM-12/18 : Auteur(s): M. Lima and S.A. Estay (Chile)
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Proposal to continue the time series of research surveys to monitor abundance of Antarctic toothfish in the southern Ross Sea, 2016–2017
Abstract: A research proposal to continue the southern Ross Sea sub-adult toothfish survey for ... the next two years, 2016–2017, is presented. The survey will continue to focus primarily on estimating ... the relative abundance of sub-adult (<110 cm TL) toothfish in the core strata (A, B, C) in SSRUs ... 88.1J and 88.1L. This is a continuation of the time series of CCAMLR-sponsored research surveys of these ...
Meeting Document : WG-SAM-15/45 : Auteur(s): S.M. Hanchet, S.J. Parker, S. Mormede and R.J.C. Currey (New Zealand)
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Results of the 2015 multi-Member longline survey for toothfish in the northern Ross Sea region (Subarea 88.2 SSRUs A–B) and proposal for 2016 operations
Abstract: The first year of a two-year and multi-member research survey using standardised ... longline gear to sample toothfish populations was carried out in the northern areas (60°‑ 66° S) of SSRUs ... 88.2A–B. The sampling strategy and data collection adhered to standards set in CM 41-10 (2014). A total ... . Age composition of the catch as predicted by the spatial population model was similar to that observed ...
Meeting Document : WG-FSA-15/32 : Auteur(s): S.J. Parker, R.J.C. Currey (New Zealand), M. Söffker, C. Darby (United Kingdom), O. Godø (Norway) and A. Petrov (Russia)
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Revised proposal to continue the time series of research surveys to monitor abundance of Antarctic toothfish in the southern Ross Sea, 2016 and 2017
Abstract: A research proposal to continue the southern Ross Sea sub-adult toothfish survey for ... the next two years, 2016 and 2017, is presented. The survey will continue to focus primarily on ... estimating the relative abundance of sub-adult (<110 cm TL) toothfish in the core strata (A, B, C) in ... of the time series of CCAMLR-sponsored research surveys of these strata carried out from 2012–2015 ...
Meeting Document : WG-FSA-15/34 : Auteur(s): S.M. Hanchet, S.J. Parker, S. Mormede and R.J.C. Currey (New Zealand)
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Monitoring variability and change in the plankton communities of the Scotia Sea through Continuous Plankton Recorder surveys
Abstract: The northern regions of the Scotia Sea demonstrate notable variability in environmental ... conditions, particularly in the location of the Polar Front. This has a strong influence on patterns of ... species. The long-term impact of environmental variability on plankton species composition and abundance ... has been monitored through conducting a series of Continuous Plankton Recorder (CPR) tows in the South ...
Meeting Document : WG-EMM-16/29 : Auteur(s): G.A. Tarling, M.Z. Wootton, D.G. Johns, T.D. Jonas, E.J. Murphy and P. Ward
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Analysis of the longline fishery data in the Ross Sea (SSRUs 881B, C and G)
Abstract: The analysis of the toothfish fishery data in the northern part of the Ross Sea (SSRU ... 88.1 B, C and G) was performed using haul-by-haul data from the CCAMLR database for the period 1997 ... -2015. The variability of catch per haul (kg) and CPUE (kg/1000 hooks) depending on the hauling ... possible presence of number of high CPUE and catches, which are outside the upper limit of confidence ...
Meeting Document : WG-FSA-16/14 : Auteur(s): S. Kasatkina
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Results of the seventh Ross Sea shelf survey to monitor abundance of Antarctic toothfish in the southern Ross Sea, January 2018, and notification for research in 2018/19
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... abundance from a well-designed survey would be a useful input into the Ross Sea stock assessment model. In ... this paper we provide results of the seventh annual survey in the time series. The objectives of this ... survey included monitoring sub-adult (≤ 110 cm TL) toothfish in the south of SSRUs 881.J and 881.L in the ...
Meeting Document : WG-SAM-18/10 : Auteur(s): D. Stevens, X. Fu, S. Mormede and S. Parker
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Evidence of change to the environment, ecosystem and fishery within Area 48 indicates the need for continued precaution
Abstract: CCAMLR manages the krill fishery in Area 48 using a catch limit (the trigger level ... ) which was established in 1991 based on the maximum catches reported for each subarea. Since that time ... the ecosystem has undergone rapid environmental change. Several studies suggest that krill numerical ... changes are consistent with global evidence of the ecological effects of environmental change. At the same ...
Meeting Document : WG-EMM-2019/29 : Auteur(s): S. Hill and A. Atkinson
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State of the Antarctic and the Southern Ocean Climate System (SASOCS)
Abstract: The paper is a summary of a detailed review produced for submission to a scientific ... journal. by the SCAR Scientific Research Programme on Antarctica and the Global Climate System (S. Aoki ... , and C. Xiao), For access to the original paper please contact the SCAR Secretariat. This information ... paper provides a review of the key developments over the past two years in our understanding of physics ...
Meeting Document : CCAMLR-XXVI/BG/37 : Auteur(s): Submitted by SCAR
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Monitoring and management in the Antarctic – making the link between science and policy
Abstract: Management of human impacts in the Antarctic requires an effective system of monitoring ... to provide information about the process being managed and the effectiveness of management actions ... . Human impacts arise as a result of processes that originate in the region (endogenous) and those that ... originate outside the region (exogenous). A number of monitoring programmes have been established in both ...
Meeting Document : WG-EMM-07/P9 : Auteur(s): K. Reid (United Kingdom)