Search results
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PRELIMINARY RESULTS OF THE EXPERIMENT ON DEFINITION OF ANTARCTIC KRILL MORTALITY RATE IN FISHERY
Abstract: Two successful experiments on definition of Antarctic krill mortality have been carried out aboard Polish vessel Dalmor II according to the pattern submitted in paper SC-CAMLR-XXVIII/BG/10. Approximately 230 to 130 kg of krill are percolated and punched through per an hour of trawling if
Meeting Document : WG-EMM-11/15 : Author(s): L. Pshenichnov and K. Vyshniakova (Ukraine)
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ANTARCTIC KRILL AND CLIMATE CHANGE
Abstract: During April 2011, a multi-national group of scientists with expertise on Antarctic krill Euphausia superba and environmental sciences attended a workshop aiming to evaluate new knowledge on the impact of climate change and increasing fisheries on Antarctic krill and Antarctic ecosystems
Meeting Document : WG-EMM-11/16 : Author(s): H. Flores (Netherlands), A.S. Atkinson (UK), E. Bravo Rebolledo (Netherlands), V. Cirelli (Argentina), J. Cuzin-Roudy (France), S. Fielding (UK), J.A. van Franeker (Netherlands), J.J. Groeneveld (Netherlands), M. Haraldsson (Sweden), S. Kawaguchi (Australia), B.A. Krafft (Norway), A. Lombana (USA), E. Marschoff (Argentina), B. Meyer (Germany), G. Milinevsky (Ukraine), S. Nicol (Australia), E.A. Pakhomov (Canada), A.P. Van de Putte (Belgium), C. Reiss (USA), E. Rombolá (Argentina), K. Schmidt (UK
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ESTIMATION OF MANAGEMENT REFERENCE POINTS CONSISTENT WITH THE CATCH TRIGGER LEVEL FOR THE ANTARCTIC KRILL FISHERY IN AREA 48
Abstract: The Generalised Yield Model was used to estimate fishing mortality and spawning stock biomass reference points for the krill fishery in CCAMLR Area 48 consistent with the catch trigger level of 620,000 tonnes. Projections were run with various increased levels of recruitment variability
Meeting Document : WG-EMM-11/17 : Author(s): T. Peatman, J. Moir Clark, D.J. Agnew (UK)
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USING ECOSYSTEM STRUCTURE TO IDENTIFY FINER-SCALE SSMUS FOR OCEANIC AREAS IN SUBAREAS 48.1 TO 48.3
Abstract: One of the main issues in the management of the krill fishery is finding a spatial subdivision of catches that allows CCAMLR to achieve its objectives for both the fishery and the ecosystem. This requires a framework of spatial areas over which catches can be subdivided. WG-EMM has
Meeting Document : WG-EMM-11/18 : Author(s): S.L. Hill and J. Silk (UK)
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VARIABILITY IN KRILL BIOMASS LINKS HARVESTING AND CLIMATE WARMING TO PENGUIN POPULATION CHANGES IN ANTARCTICA
Abstract: The West Antarctic Peninsula (WAP) and adjacent Scotia Sea support abundant wildlife populations, many of which were nearly extirpated by humans. This region is also among the fastest-warming areas on the planet, with 5–6 °C increases in mean winter air temperatures and associated
Meeting Document : WG-EMM-11/P1 : Author(s): W.Z. Trivelpiece, J.T. Hinke, A.K. Miller, C.S. Reiss, S.G. Trivelpiece and G.M. Watters
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ADÉLIE PENGUIN SURVIVAL: AGE STRUCTURE, TEMPORAL VARIABILITY AND ENVIRONMENTAL INFLUENCES
Abstract: The driving factors of survival, a key demographic process, have been particularly challenging to study, especially for winter migratory species such as the Adélie penguin (Pygoscelis adeliae). While winter environmental conditions clearly influence Antarctic seabird survival, it has
Meeting Document : WG-EMM-11/P4 : Author(s): L. Emmerson and C. Southwell
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WILL KRILL FARE WELL UNDER SOUTHERN OCEAN ACIDIFICATION?
Abstract: Antarctic krill embryos and larvae were experimentally exposed to 380 (control), 1000 and 2000 μatm pCO2 in order to assess the possible impact of ocean acidification on early development of krill. No significant effects were detected on embryonic development or larval behaviour at 1000
Meeting Document : WG-EMM-11/P6 : Author(s): S. Kawaguchi, H. Kurihara, R. King, L. Hale, T. Berli, J.P. Robinson, A. Ishida, M. Wakita, P. Virtue, S. Nicol and A. Ishimatsu
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OCEAN-BOTTOM KRILL SEX
Abstract: For the first time the entire sequence of the mating behaviour of Antarctic krill (Euphausia superba) in the wild is captured on underwater video. This footage also provides evidence that mating can take place near the seafloor at depths of 400–700 m. This observation challenges the
Meeting Document : WG-EMM-11/P7 : Author(s): S. Kawaguchi, R. Kilpatrick, L. Roberts, R.A. King and S. Nicol
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COLLAPSE OF SOUTH AFRICA’S PENGUINS IN THE EARLY 21ST CENTURY
Abstract: The number of African penguins Spheniscus demersus breeding in South Africa collapsed from about 56 000 pairs in 2001 to some 21 000 pairs in 2009, a loss of 35 000 pairs (>60%) in eight years. This reduced the global population to 26 000 pairs, when including Namibian breeders, and
Meeting Document : WG-EMM-11/P8 : Author(s): R.J.M. Crawford, R. Altwegg, B.J. Barham, P.J. Barham, J.M. Durant, B.M. Dyer, D. Geldenhuys, A.B. Makhado, L. Pichegru, P.G. Ryan, L.G. Underhill, L. Upfold, J. Visagie, L.J. Waller and P.A. Whittington
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Summary of the work of the CEP on Marine Protected Areas
Abstract: At CEP XIV (2011), the Antarctic Treaty Secretariat presented Secretariat Paper 6 “Summary of the Work of the CEP on Marine Protected Areas”. This paper reports on the development of the topic of Marine Protected Areas (MPA’s) in discussions of the Committee for Environmental
Meeting Document : WS-MPA-11/04 : Author(s): Antarctic Treaty Secretariat, c/o Dr P. Penhale, CEP Representative to the CCAMLR MPA Workshop