Résultats de la recherche
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Scientific background document in support of the development of a CCAMLR MPA in the Weddell Sea (Antarctica) - Version 2015 - Part B: Description of available spatial data
EMM) the background document that provides the scientific basis for the evaluation of a marine ... protected area (MPA) in the Weddell Sea planning area. The contents and structure of the whole document ... reflect its main objectives, i.e. to set out the general context of the establishment of MPAs and to ... data retrieval process (Part B); to describe the results of the scientific analyses and the MPA ...
Meeting Document : WG-EMM-15/39 : Auteur(s): K. Teschke, H. Pehlke and T. Brey on behalf of the German Weddell Sea MPA (WSMPA) project team, with contributions from the participants at the International Expert Workshop on the WSMPA project (7-9 April 2014, Bremerhaven)
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Features of spatial and temporally distribution patterns of krill flux in the Scotia Sea: some comments on the development of a krill fishery management in Area 48.
the influence of geostrophic flux at various space-time scales. The availability of such information ... Abstract: The spatial variability of krill flux in the Scotia Sea calculated by using the ... distribution of krill density, water flow intensity (m 3 /s) and krill biomass (g/m3) transported by water flow ... to the Scotia Sea, were a subject of study. It is clearly illustrated that the geostrophic krill ...
Meeting Document : WG-EMM-18/21 : Auteur(s): S. Kasatkina, V. Shnar and A. Malyshko
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Comparison of the catches and biological characteristics of Dissostichus mawsoni in Subarea 88.1 in seasons of 2002/03 and 2003/04
Abstract: This report presents results of an exploratory fishery for Antarctic toothfish (D ... . mawsoni) conducted by the Russian vessels “Yantar” and “Volna” for two seasons of 2002/03 and 2003/04. The ... analysis of data collected relates to catch composition, effort, CPUE, and biological characteristics in ... different SSRU, month and depth of sets longlines. The comparison of these resultants showed that in the ...
Meeting Document : WG-FSA-04/84 Rev. 1 : Auteur(s): K.V. Shust, N.V. Kokorin and A.F. Petrov (Russia)
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Results of the fourth CCAMLR sponsored research survey to monitor abundance of sub-adult Antarctic toothfish in the southern Ross Sea, February 2015 and further development of the time series
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... first three surveys were completed in February 2012, 2013, and 2014. In this paper we provide results of ... the fourth survey in the time series. The objectives of this survey were: (1) To carry out a longline ... of high sub-adult abundance that could be included as strata in future annual surveys. The 2015 ...
Meeting Document : WG-SAM-15/44 : Auteur(s): S.M. Hanchet, B.R. Sharp, S. Mormede, S.J. Parker (New Zealand) and M. Vacchi (Italy)
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Results of the third CCAMLR sponsored research survey to monitor abundance of subadult Antarctic toothfish in the southern Ross Sea, February 2014 and development of the time series
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... provide results of the third survey in the time series. The objectives of this third survey were: (1) To ... area to identify areas of high subadult abundance which could be included as strata in future annual ... significantly different. Age frequency data from the surveys have shown the progression of a cohort from age 7 ...
Meeting Document : WG-FSA-14/51 : Auteur(s): S. Mormede, S.J. Parker, S.M. Hanchet, A. Dunn (New Zealand) and S. Gregory (United Kingdom)
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Investigation of the sensitivity of the Ross Sea toothfish assessment to withholding subsets of the available data
CCAMLR areas using integrated statistical catch-at-age stock assessment models. These models were ... model outputs of withholding from a stock assessment between one and eight years of age frequency and/or ... tag recapture data. Examining the impact of considering a subset of the available data simulates both ... the effect of not updating an assessment every year, and also the evolution of stock assessments with ...
Meeting Document : WG-SAM-11/17 : Auteur(s): S. Mormede (New Zealand)
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On problem of natural subdividing of Antarctic krill’s geographic area (an application to the monitoring of fishing)
Abstract: The possibilities of natural regionisation of antarctic krill's geographic area ... with emphasis on fisheries regions distribution are considered on the base of consisting data of ... spatial structure of krill's geographic area. More then 43% of regions, where usually present ... concentrations of krill (this percent includes all recently acting fishery regions) lay inside of secondary ...
Meeting Document : WG-KRILL-93/37 : Auteur(s): R.R. Makarov and L.L. Menshenina (Russia)
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Long-term forecast of the conditions of krill (Euphausia superba Dana) fisheries in the Antarctic part of the Atlantic Ocean
Abstract: There have been revealed possibilities for the long-term forecast of CPUE for the ... Antarctic krill (tones per hour) as the major indicator of its abundance and density of concentrations in ... the area of South Shetland and South Orkney Islands as well as South Georgia applying the following ... factors: average annual level of solar activity, speed of the Earth rotation and its derivatives ...
Meeting Document : WG-EMM-07/15 : Auteur(s): V.A. Bibik and V.A. Bryantsev (Ukraine)
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Analysis of the diet of Champsocephalus gunnari in Subarea 48.3, in late summer of years 1994–97, Dr E. Holmberg surveys
Abstract: The diet composition of mackerel icefish Champsocephalus gunnari caught in Subarea 48.3 ... in late summer of years 1994-97 was analysed using frequency of occurrence (F%) and coefficient " ... 1994, when the order of importance of these two organisms in the diet was inverted. The consumption of ... years of krill scarcity and fish, was only occasional or in negligible amounts, showing interannual ...
Meeting Document : WG-FSA-97/48 : Auteur(s): Barrera-Oro, E., Marschoff, E., Casaux, R.
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Results of study of the oogenesis characteristics of Antarctic toothfish (Dissostichus mawsoni Norman 1937) (Nototheniidae) from Subareas 88.1 and 88.2 (Ross Sea)
Abstract: The results of the histological analysis of the Antarctic toothfish (Dissostichus ... and 88.2 in the Ross Sea are presented. The morphological parameters, indices of gonads have been ... described. The histological criteria of the assessment of the ovary maturity stages and cytological ... parameters of oocytes and type of the toothfish oogenesis have been determined. Under the maturing of ...
Meeting Document : WG-FSA-07/49 : Auteur(s): S. V. Piyanova and A.F. Petrov (Russia)