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Further development of a spatially explicit population dynamics operating model for Antarctic toothfish in the Ross Sea region
. Observations include spatially explicit commercial catch proportions-at-age, proportions mature and proportions ... spawning (based on GSI data), CPUE, and tag-release and tag-recapture observations. Estimates of parameters ... appeared to broadly reflect the hypothesised spatial distribution of Antarctic toothfish, suggesting that ... younger fish were found predominantly in southern areas of the Ross Sea shelf, mature fish on the slope ...
Meeting Document : WG-SAM-13/35 : Автор(ы): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)
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Long-term change in zooplankton communities of the Southern Ocean between 1997 and 2018: implications for fisheries and ecosystems
Abstract: We provide an analysis of zooplankton distributions in the circumpolar Southern Ocean ... productivity, sea-surface temperature (SST), mixed layer depth, sea ice and the spatial gradient of SST (as an ... indicator of ocean fronts). Boosted Regression Tree models were used to investigate relationships between ... the abundances of key groups of zooplankton, occurrence of characteristic zooplankton communities, and ...
Meeting Document : WG-EMM-2019/66 : Автор(ы): M.H. Pinkerton, M. Decima, J. Kitchener, K. Takahashi, K. Robinson, R. Stewart and G.W. Hosie
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LIFE HISTORY BUFFERING IN ANTARCTIC MAMMALS AND BIRDS AGAINST CHANGING PATTERNS OF CLIMATE AND ENVIRONMENTAL VARIATION
Abstract: The consequences of warming for Antarctic long-lived organisms depend on their ability ... to survive changing patterns of climate and environmental variation. Among birds and mammals of ... and Weddell seals, we found strong support for selection of life history traits that reduce ... survival of adults and in their propensity to breed annually, which are the vital rates that influence most ...
Meeting Document : WG-EMM-08/P05 : Автор(ы): J. Forcada, P.N. Trathan and E.J. Murphy
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Distribution and abundance of Antarctic krill (Euphausia superba) off East Antarctic (30–80°E) in January–March 2006
-2. B0 was estimated to be 12.46 million tonnes with a CV of 15.15%. Krill were widely distributed at ... of Division 58.4.2 for the purposes of estimating the unexploited biomass (B0) of Antarctic krill ... (Euphausia superba) and its associated coefficient of variance (CV). This paper updates the version submitted ... to WG-EMM in 2006 (WG-EMM-06/16) because a reanalysis of the data has resulted in amendments to the ...
Meeting Document : WG-EMM-07/33 : Автор(ы): T. Jarvis, N. Kelly, E. van Wijk, S. Kawaguchi and S. Nicol (Australia)
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IMPLEMENTATION OF FISHERY CONSERVATION MEASURES IN 2009/10
Abstract: Table of Contents Topic Page Introduction 1 Fisheries in 2009/10 1 Fishery monitoring 3 ... -02 7 Preliminary assessments of impacts of bottom fishing CM 22-06 7 Krill fisheries notified under ... 2009/10 9 INTRODUCTION 1. Conservation Measures (CM) and resolutions adopted at CCAMLR-XXVIII were ... 2010. These CMs and resolutions were published in the Schedule of Conservation Measures in Force in ...
Meeting Document : CCAMLR-XXIX/BG/10 : Автор(ы): Secretariat
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Summer distribution, abundance and structure of krill populations (Euphausia superba and Euphausia crystallorophias) sampled by plankton net in the western Ross Sea (January–February 2000)
) were analysed to obtain a general picture of the summer distribution pattern, abundance and demography ... of krill in the western Ross Sea (Antarctica). A midwater sampler-trawl (Hamburg Plankton Net) was ... used to collect zooplankton and fish larvae at 63 stations. The net was deployed normally as a standard ... double oblique tow. Mean relative biomass of Antarctic krill Euphausia superba, in the area north of ...
Meeting Document : WG-EMM-00/38 : Автор(ы): M. Azzali, A. Sala and G. Brancato (Italy)
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ECOSYSTEM SERVICES OF THE SOUTHERN OCEAN
the Southern Ocean ecosystem is generally under-represented in assessments of ecosystem services at ... Abstract: The Southern Ocean is a globally important marine region, providing a range of ... ecosystem services which support human life, health and well-being, including the provision of marine living ... resources, and the regulation of global climate and sea level. Assessing ecological processes in terms of ...
Meeting Document : WG-EMM-11/21 : Автор(ы): S.M. Grant, S.L. Hill and P.N. Trathan (UK)
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Proposal for the removal of night setting requirement for autoline vessels fishing in Division 58.5.2
fishing in Division 58.5.2 to occur at any time of the day/night cycle. The proposal forms part of an ... adaptive approach to management, which considers the risk status of the fishery, knowledge on the ... effectiveness of mitigation measures, mitigation performance record of the vessel, seabird mortality levels and ... assessment of the likely effects of individual mitigation measures to total mitigation response. Since the ...
Meeting Document : WG-FSA-04/73 : Автор(ы): G. Robertson and B. Baker (Australia)
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A characterisation of the toothfish fishery in Subarea 48.6 from 2003/04 to 2011/12
caught at deeper waters and have a larger mean length than Patagonian toothfish. There is not evidence of ... , location, size structure and maturity of Dissostichus spp. Information on the composition of bycatch ... toothfish, accumulated catch across years yielded 1,353 tons with the majority of the catch coming from ... was reported exclusively in the SSRUs 48.6A and 48.6G. Most of the catches were reported by vessels ...
Meeting Document : WG-SAM-12/33 : Автор(ы): R. Wiff (Chile), M. Belchier (United Kingdom) and J. Arata (Chile)
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A characterisation of the toothfish fishery in Subarea 48.6 from 2003/04 to 2011/12
caught at deeper waters and have a larger mean length than Patagonian toothfish. There is not evidence of ... , location, size structure and maturity of Dissostichus spp. Information on the composition of bycatch ... toothfish, accumulated catch across years yielded 1,353 tons with the majority of the catch coming from ... was reported exclusively in the SSRUs 48.6A and 48.6G. Most of the catches were reported by vessels ...
Meeting Document : WG-FSA-12/38 : Автор(ы): R. Wiff (Chile), M. Belchier (United Kingdom), J.C. Quiroz and J. Arata (Chile)
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