Resultados de la búsqueda
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Measurement of capacity in CCAMLR exploratory fisheries in Subareas 88.1 and 88.2: Secretariat update 2015
and do not indicate an excess capacity in the fishery. A measure of potential daily fishing capacity ... fishing capacity is in excess of the level that would allow the Secretariat to forecast and issue a ... Abstract: This paper presents an update of the metrics of capacity and capacity utilisation ... as a function of the catch limit for an area indicates that for some management areas the notified ...
Meeting Document : WG-FSA-15/09 : Autor(es): CCAMLR Secretariat
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Estimates of local biomass with uncertainty for Antarctic (Dissostichus mawsoni) and Patagonian (D. eleginoides) toothfish in research blocks in Subareas 48.6 and 58.4
and 486_4. However, as the trend in all three of these research blocks was declining the revised catch ... Abstract: Local biomass of toothfish in research blocks in Subareas 48.6 and 58.4 have been ... of WG-SAM. The trend analysis decision rules developed by WG-FSA 17 were applied to provide catch ... limits for 2018/19. The only research blocks in which there were adequate recaptures were 486_2, 486_3 ...
Meeting Document : WG-FSA-18/12 : Autor(es): CCAMLR Secretariat
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Variability of krill biomass estimates in repeated mesoscale surveys in relation to CCAMLR-2000 Survey
Abstract: One of the important problems in interpreting CCAMLR-2000 results is how they reflect ... ) and methods of sampling, but sampling was carried out in the 0-100 m water layer instead 0-200 m in ... significant changes, being in the limit of 15.3-20.3 g/m2. When assuming that changes of average weight ... density reflect biomass variability, it may be suggested that value of the total krill biomass in the area ...
Meeting Document : WG-EMM-01/28 : Autor(es): V.A. Sushin, F.F. Litvinov (Russia) and V. Siegel (Germany)
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Proposed continuation of a multi-Member longline survey on Antarctic toothfish (Dissostichus mawsoni) in Statistical Subarea 48.6 in 2018/19 by Japan, South Africa and Spain
integrated assessments of the D.mawsoni stock in this subarea. The Working Group recommended that Spain ... 2013 to enhance data collection and analysis in the Subarea 48.6. In the last WG-SAM Spain has proposed ... to join the former proposal in order to contribute to the data acquisition and to speed up the ... should coordinate its research efforts with Japan and South Africa and encouraged the submission of a ...
Meeting Document : WG-FSA-18/34 : Autor(es): Delegations of Japan, South Africa and Spain
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Dynamics of Antarctic penguin populations in relation to inter-annual variability in sea-ice distribution
Abstract: To investigate the role of sea ice cover on penguin populations we used principal ... apparent inverse density-dependent relationship between the number of Adélie breeding pairs and the number ... particular time prior to the start of the breeding season was related to the number of birds that arrived to ... outside the breeding season may play an important role in penguin population processes. Author(s): Murphy ...
Meeting Document : WG-EMM-96/10 : Autor(es): Murphy, E.J., Croxall, J.P., Trathan, P.N.
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Measurement of capacity in CCAMLR exploratory fisheries in Subareas 88.1 and 88.2: Secretariat update 2017
not indicate an excess of capacity in the fishery. As previously reported, based on a measure of ... Abstract: This paper presents an update of the metrics of capacity and capacity utilisation ... fisheries in Subareas 88.1 and 88.2. The updated metrics show the same pattern as in previous updates and do ... potential daily fishing capacity and the catch limit for an area the notified fishing capacity in some ...
Meeting Document : WG-FSA-17/05 : Autor(es): CCAMLR Secretariat
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Diet composition and observations on reproduction of Champsocephalus gunnari in Subarea 48.3 in March/April 1996, Dr Eduardo Holmberg survey
Abstract: The diet composition of the icefish Champsocephalus gumari caught in the Subarea 48.3 ... in the region in levels equivalent to the historical years of high abundance. Author(s): Marschoff ... in March/April 1996 was analyzed using Frequency of occurrence (F%) and coefficient "Q" ... items, known as an important alternative food in years of krill scarcity, were ingested only ...
Meeting Document : WG-FSA-96/28 Rev. 1 : Autor(es): Marschoff, E., Barrera-Oro, E., Casaux, R.
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IN SITU MEASUREMENTS OF TILT ANGLE DISTRIBUTION AND TARGET STRENGTH IN ANTARCTIC KRILL (EUPHAUSIA SUPERBA)
crucial for biomass estimates of the species, but in situ investigations regarding this are still very ... scarce. We conducted a field study in the Southern Ocean where one of the objectives was to acquire data ... South Georgia and the Bouvet Island and we here in part present the methods applied and give examples of ... Abstract: Knowledge of the scattering properties of Antarctic krill (Euphausia superba) is ...
Meeting Document : WG-EMM-08/29 : Autor(es): G. Skaret, S.A. Iversen, T. Knutsen, R.J. Korneliussen, E. Ona, R. Pedersen, A. Totland, T. Torkelsen (Norway) and X. Zhao (China)
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Temporal changes in sighting density indices of baleen whales in CCAMLR Subareas 48.1 and 48.2 based on three circumpolar sighting surveys
Commission Scientific Committee (IWC SC) in the context of the research programs ‘International Decades of ... abundance of whales in relevant subareas for krill management, and the second is on the concentration of ... Abstract: This paper examines temporal changes in distribution and sighting density indices of ... in EMM-15 that an analysis of historical cetacean surveys in IWC Area II could provide a context for ...
Meeting Document : WG-EMM-16/26 : Autor(es): L.A. Pastene and T. Hakamada
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Proposed continuation of a multi-Member longline survey on Antarctic toothfish (Dissostichus mawsoni) in Statistical Subarea 48.6 in 2018/19 by Japan and South Africa
various demographic parameters of Antarctic toothfish (Dissostichus mawsoni) in the Subarea 48.6 in 2018 ... characteristics and thereby contribute to the development of spatial population models and assessments in support ... ) and will supplement and expand previous efforts to characterize the local toothfish populations in the ... of management advice. Additional outcomes of the research include documenting relative abundance of ...
Meeting Document : WG-SAM-18/04 : Autor(es): Delegations of Japan and South Africa