Search results
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Penguin demography and winter distributions in the Antarctic Peninsula region
Abstract: Our long-term seabird research at Admiralty Bay has documented annual variability in ... the life history parameters of the breeding biology and ecology of Adélie, gentoo, and chinstrap ... periodicity of sea ice cover in the region. This climate change, and the associated reduction in winter sea ...
Meeting Document : WG-EMM-01/32 : Author(s): W. Trivelpiece and S. Trivelpiece (USA)
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A proposal for a standardised survey for Antarctic toothfish in McMurdo Sound
abundance of Antarctic toothfish. A pilot season was carried out in 2014, where sampling gear and ... integrated with ongoing collaborative research programmes to determine the importance of toothfish to ... (number of stations sampled per season) needed to detect a moderate change in the abundance index is ... likely to be higher than feasible at this stage. Therefore, techniques and additional infrastructure will ...
Meeting Document : WG-FSA-15/33 : Author(s): S.J. Parker, S.M. Hanchet and S. Mormede (New Zealand)
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Introducing Casal2 for toothfish stock assessments
methods. Casal2 is open-source and is available at https://github.com/NIWAFisheriesModelling/Casal2 ... Initial comparisons of CASAL and Casal2 show that these programs provide the same stochastic results, and ... identical empirical results for estimation of key productivity parameters. We invite Members to test Casal2 ... github website. We also suggest that one or multiple assessments of toothfish be included in the Casal2 ...
Meeting Document : WG-SAM-18/14 : Author(s): S. Mormede
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THE CONVENTION ON THE CONSERVATION OF ANTARCTIC MARINE LIVING RESOURCES (CCAMLR) AND THE ECOSYSTEM APPROACH As published in the International Journal of Marine and Coastal Law, Vol. 23, No. 3, 2008
Abstract: Lack of adequate governance of the high seas areas has resulted in the continued ... degradation of ocean and marine habitats. Ȁ e ecosystem approach, which comprises integrated, precautionary ... incorporation of an ecosystem approach to the conservation and management of marine living resources, and ... continues to be a leader in its implementation. Ȁ rough its actions at scientific, institutional and ...
Meeting Document : CCAMLR-XXVII/BG/25 : Author(s): Submitted by ASOC
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Krill length frequency distribution in Subarea 48.3 in January–April 1988 in relation to sources of its origin
distributed in the coastal zone of about 7-40 miles wide, further is situated the boundary zone at the ... considered in the frame of hypothesis of krill resources forming from two sources: Antarctic Circumpolar ... Current and Weddell Scotia Sea water flow. It is shown, that small krill with the mode of about 33 mm is ... distance of about 30-60 miles, beyond boundary zone occurs larger krill with the mode of about 49 mm. Krill ...
Meeting Document : WG-EMM-03/40 : Author(s): F.F. Litvinov, V.N. Shnar, A.V. Zimin and V.V. Lidvanov (Russia)
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Assessment models for Patagonian toothfish in research block 58.4.3a_1 of Division 58.4.3a, Elan Bank for the years 2005-2014
Abstract: We made two sensitivity runs of age-structured and two fisheries (≥1300 m and < 1300 ... m) CASAL models for stock status assessments of Dissostichus eleginoides in the research block ... 58.4.3a_1 following the recommendations of the WG-FSA-2014 meeting. Two runs were carried out: including or ... ELAN_1 model reflected a large number of recaptures of the tags released concentrated in the western area ...
Meeting Document : WG-SAM-15/24 : Author(s): K. Taki (Japan), S. Mormede (New Zealand) and T. Ichii (Japan)
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Preliminary results of the experiments on the krill transport study in the South Orkney area (April 1992)
area. The krill biomass was estimated within the square at the start and the end of works. It amounted ... within the square of 30 x 30 miles northwestwards of Coronation Island in the fishing fleet operation ... assessment of krill density and oceanological stations were carried out along the square perimeter. Four ... dublicates of perimeter were made. Control hauls with midwater trawl were made on the regular basis. The ...
Meeting Document : WG-CEMP-92/34 : Author(s): L.G. Maklygin, V.N. Shnar, A.P. Malyshko (Russian Federation) and A.G. Shepelev (Ukraine)
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High-resolution ocean modelling of the South Georgia and South Orkney Islands regions
South Orkney Islands is highly productive, with a history of commercial exploitation. Many of the key ... oceanographic and ecological processes that determine the structure and functioning of this ecosystem operate ... over small scales of <10 km. Historically, these fine spatial scales have been poorly represented in ... numerical models. Here we describe the development of two regional ocean models that will be used to examine ...
Meeting Document : WG-EMM-16/15 : Author(s): E. Young, E. Murphy and P. Trathan
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Recommendation for an explicit limit reference point for the mackerel icefish (Champsocephalus gunnari) fishery in CCAMLR Statistical Division 58.5.2
Abstract: Large fluctuations in abundance are a persistent feature of the populations of mackerel ... theoretically allow some commercial fishing to occur on icefish stocks when stock biomass is at a low level ... . Australia recommends the development of a limit reference point, such that the commercial catch limit for ... completed. In years with a zero commercial catch limit, a combined bycatch and research catch limit of 30 ...
Meeting Document : WG-FSA-11/34 : Author(s): Delegation of Australia
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Using compact video camera technology for rapid deep-sea benthic habitat assessment
a drop camera included: 1. Rapid: Three, two minute replicates of footage at 1000m, including ... Ocean benthos, has a wider application in deep-sea marine research. The use of the system as a drop ... voyage on the shelf-break of East Antarctica, greatly improved the efficiency of selection of sites for ... quantitative sampling. The system is also promoted for estimates of krill biomass, swarm dynamics and ...
Meeting Document : WG-EMM-10/24 : Author(s): G.P. Ewing, R. Kilpatrick, A.J. Constable and D.C. Welsford (Australia)