Résultats de la recherche
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Preliminary report on the South Orkneys Ecosystem Studies (SOES) field work undertaken by RRS James Clark Ross (JR15004) and associated field camps in January–February 2016
an important contribution to developing feedback management strategies. Author(s): J. Watkins, O.R ... Delegation responsibility for releasing documents: United Kingdom ... formed a key component of the co-ordinated, multi-national South Orkney Ecosystems Studies focusing on ... 2015-16. The research cruise consisted of collection of at-sea data on the distribution, abundance and ...
Meeting Document : WG-EMM-16/19 : Auteur(s): J. Watkins, O.R. Godø, S. Fielding, C. Reiss, P. Trathan and E. Murphy
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Proposals on standardization of toothfish resource research
efforts by years and research blocks do not allow obtaining scientific-based data for understanding the ... discussed in the context of discussion at the Scientific Committee and the CCAMLR Commission in 2018 ... accompanied by standard procedures for trawl adjusting and monitoring of its parameters. These procedures are ... mandatory for all ships participating in the survey. At the same time, methodological aspects of the multi ...
Meeting Document : WG-SAM-2019/34 : Auteur(s): S. Kasatkina
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Integrating Climate and Ecosystem Dynamics in the Southern Ocean (ICED) programme: a report on recent joint activities and links between ICED and CCAMLR
an initial, mainly qualitative, assessment of the potential impacts of climate change on krill, their ... Abstract: ICED is an international multidisciplinary programme undertaking integrated circumpolar ... analyses to improve understanding of Southern Ocean change, the implications for ecosystems and for ... interest to CCAMLR. The 2018 ICED Projections Workshop, undertaken in collaboration with CCAMLR, provided ...
Meeting Document : WG-EMM-2019/02 : Auteur(s): R.D. Cavanagh, N.M. Johnston and E.J. Murphy
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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
in EMM-15 that an analysis of historical cetacean surveys in IWC Area II could provide a context for ... abundance of whales in relevant subareas for krill management, and the second is on the concentration of ... of Antarctic sighting cruises for whale assessment purposes organized by the International Whaling ... observed in CPIII than in CPII while that Antarctic minke whale showed an inverse trend. These observations ...
Meeting Document : WG-EMM-16/26 : Auteur(s): L.A. Pastene and T. Hakamada
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Preliminary assessment of mackerel icefish (Champsocephalus gunnari) in the vicinity of Heard Island and McDonald Islands (Division 58.5.2), based on a survey in July 2007, using the generalised yield model
58.5.2 in the vicinity of Heard Island in July 2007 to provide the information for an assessment of short ... for the area of Division 58.5.2 to the west of 79o 20’ E using standard CCAMLR methods. Evidence of ... strong 1+ year class recruiting to the population has led to an increase in the estimated biomass of ... mackerel icefish, and an increase on the recommended catch over the projection. Based on a similar cohort ...
Meeting Document : WG-FSA-07/47 : Auteur(s): D.C. Welsford (Australia)
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Some characteristics of krill transport in the Scotia Sea based on the Russian survey data
within SSMU, nor with the total catch from the Scotia Sea for any fishing season during the latest 20 ... that krill transport estimates should be taken into consideration in the scheme for allocating the ... Abstract: In this work the characteristics of krill transport across the SSMUs determined on the ... based on the long-term data from 3012 stations and respective time intervals when the water mass in the ...
Meeting Document : WG-EMM-05/41 : Auteur(s): S.M. Kasatkina, V.N. Shnar and O.V. Berezhinsky (Russia)
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Preliminary assessment of mackerel icefish, Champsocephalus gunnari, in the vicinity of Heard Island and McDonald Islands (Division 58.5.2), based on a survey in May–June 2006 using the Generalised Yield Model
58.5.2 in the vicinity of Heard Island in May-June 2006 to provide the information for an assessment of ... yield for the area of Division 58.5.2 to the west of 79°20’ E using standard CCAMLR methods. A lack of ... fishery next year, yield estimates for 2006/07 are a further 70% lower. Author(s): D.C. Welsford ... evidence of strong year classes recruiting to the population has led to a significant decrease in the ...
Meeting Document : WG-FSA-06/43 Rev. 1 : Auteur(s): D.C. Welsford (Australia)
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Interannual variations of water thermochaline structure on South Georgia Island, South Orkney Islands and Shetland Islands shelves
between the same. Two year types were revealed in the area of South Orkney Isls. Availability of a warmed ... temperature, while in other years (1980, 1981) the layer temperature was negative. The second year type (1979 ... could be used when analysing krill aggregations' distribution and density for the period of years ... characteristics, T,S diagrams' typification has been realized for hydrological stations carried out in the ...
Meeting Document : WG-EMM-00/34 : Auteur(s): P. Chernyshkov, V. Shnar, O. Berezhinsky and I. Polischuk (Russia)
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Update report on marine mammal interactions in Division 58.4.4
individuals observed in 2014 were observed again in 2018 on the west part of Crozet’s EEZ along with two other ... rates between areas and seasons vary greatly (from 0 to 70%). Depredation rates were updated for ... individuals including a young calf. This document provides an update of the interaction and depredation rates ... and the first insight into individual’s identifications for Division 58.4.4. Author(s): N. Gasco, P ...
Meeting Document : WG-SAM-2019/01 : Auteur(s): N. Gasco, P. Tixier, T. Okuda, C. Péron and F. Massiot-Granier
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Pilot study on electrophoretic variation and stock structure in the mackerel icefish, Champsocephalus gunnari, South Georgia waters
the species is to be managed effectively. Proposals for an electrophoretic and biological analysis of ... gel electrophoresis. Thirty-one putative enzyme-coding loci were screened for enzyme polymorphisms ... commercially-exploited mackerel icefish, Champsocephalus gunnari, together with a preliminary assessment of ... of icefish samples (N = 18 to 42 per sample) indicated stock separation on a local scale. Genetic ...
Meeting Document : WG-FSA-90/10 : Auteur(s): G.R. Carvalho and D.P. Lloyd-Evans (United Kingdom)