Résultats de la recherche
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Update on the ‘Demersal interactions with marine benthos in the Australian EEZ of the Southern Ocean: an assessment of the vulnerability of benthic habitats to impact by demersal gears’ project
interactions with marine benthos in the Australian EEZ of the Southern Ocean: an assessment of the ... vulnerability of benthic habitats to impact by demersal gears”. This project commenced in 2006 and is due to ... conclude with the publication of a final report in late 2011. Outputs of this project, including novel ... technologies and unique datasets for quantifying the dynamics and extent of the interactions between demersal ...
Meeting Document : WG-EMM-10/23 : Auteur(s): G.P. Ewing, D.C. Welsford and A.J. Constable (Australia)
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Changes of population structure in common benthic species of the proposed Stella Creek MPA in the vicinity of the Akademik Vernadsky Station, Galindez Island, Antarctica
Abstract: First descriptions of the two proposed MPAs, Stella Creek and Skua Creek, as well as ... (International Union for Conservation of Nature) categories and governance types for protected area”. Bathymetric ... maps and a 3D-model of the sea-bed of Stella Creek and Skua Creek were given for the first time. The ... non-destructive method of survey using analysis of underwater photos was applied for scientific ...
Meeting Document : WG-EMM-15/41 : Auteur(s): Delegation of Ukraine
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Differentiated catchability of trawls as a method for a more precise estimate of density of krill swarms and its biomass
Abstract: Krill escapement in different parts of krill trawls and their differentiated ... considerable importance for catching results. It is proved that the estimation of density and size structure of ... fished krill swarms should be performed on the based of differentiated catchability of krill trawls. A ... mathematical model of krill trawling has been developed for estimating the above values. Author(s): V. Akishin ...
Meeting Document : WG-EMM-03/21 : Auteur(s): V. Akishin (Russia)
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VME detection thresholds: preliminary results of a study on the case of the sea pens (Pennatulacea) of the CCAMLR sector 58.4.4b
, the data are reported to the Secretariat to inform the CCAMLR about the potential presence of VME to ... of sea pens (Pennatulacea, NTW, VME bioindicator) in the 58.4.4b sector have been reported during the ... CCAMLR SAM Working Group 2018. However, despite the important level of the catches, no VME detection ... threshold triggering out the establishment of an immediate fishing exclusion zone have been reached. Here ...
Meeting Document : WG-EMM-2019/52 : Auteur(s): A. Martin and M. Eléaume
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Effect of orientation on broadband acoustic scattering of Antarctic krill Euphausia superba: implications for inverting zooplankton spectral acoustic signatures for angle of orientation
Abstract: Acoustic scattering experiments involving simultaneous acquisition of broadband echoes ... and video footage from several Antarctic krill were carried out to determine the effect of animal ... orientation on echo spectral structure. A novel video analysis technique, applied to extract krill angle of ... echo spectra had a more erratic structure, with several closely spaced nulls of variable depth. The ...
Meeting Document : WG-EMM-99/41 : Auteur(s): L.V. Martin Traykovski (USA), R.L. O’Driscoll (New Zealand) and D.E. McGehee (USA)
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Some specific features of the USSR krill fishery and possibilities of applying fishery statistics to studies of krill biology and stocks
Paper Title: Some specific features of the USSR krill fishery and possibilities of applying ... fishery statistics to studies of krill biology and stocks Abstract / Description: General principles of ... the USSR krill fishery such as the location of exploited fishing areas and the seasonal regime of ... krill fishery, it is shown that the catch-per-haul variables are associated with the fishing regime of ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 237–252 : Auteur(s): Dolzhenkov, V.N., T.G. Lubimova, R.R. Makarov, S.S. Parfenovich and V.A. Spiridonov
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A GIS tool to assist in the planning and design of sample surveys of the abundance of colonial breeding species
Abstract: A GIS tool to assist in the planning and designing of surveys of colonial breeding ... species is described. The tool could be applied to any region of Antarctica given available colony map and ... developed to implement more complex and efficient designs. An example of its potential use is provided. In ... the example the tool is used to sample a population of Adelie penguins in the Holme Bay region of East ...
Meeting Document : WG-EMM-05/25 : Auteur(s): C. Southwell, R. Dreissen, S. Candy, G. McPherson and J. Clarke (Australia)
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On influence of acoustic survey methodology improvement on krill biomass estimation. (A comparison of results of acoustic surveys based on single-frequency and double-frequency algorithms)
Abstract: Substantial improvements in data collection and analytical methodologies of acoustic ... influence of such improvements on krill biomass estimation. The letter seems to become useful in comparative ... analysis of krill biomass data from the results of different acoustic surveys. There have been presented ... the results of krill biomass comparative estimation by single-frequency and double-frequency ...
Meeting Document : WG-EMM-01/41 : Auteur(s): S.M. Kasatkina and A.P. Malyshko (Russia)
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PROPERTIES OF KRILL DISTRIBUTION IN PELAGIC AND COASTAL SSMUs OF THE SOUTH ORKNEY ISLANDS SUBAREA ACCORDING TO THE DATA OF SCIENTIFIC OBSERVATIONS AND FISHERY
Abstract: In this paper the krill spatial distribution in the in coastal and pelagic SSMUs of the ... Subarea 48.2 depending on oceanological factors is considered. Estimates of krill biomass and aggregation ... characteristics, and krill transport factors according to different modifications of Antarctic water mass are ... not meet the requirements of the present day fishery. Krill distribution and water mass circulation ...
Meeting Document : WG-EMM-08/55 : Auteur(s): S.M. Kasatkina and V.N. Shnar (Russia)
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Description of the tagging process and the development of a cradle for optimum landing and measuring of large fish followed by the Spanish F/V Tronio
Division 58.4.1 where the latter area required a tag rate of five fish per ton greenweight caught and also ... where the overall size of the fish exceeds 115cm. The tagging station on the FV Tronio is on the upper ... station and to operate the cradle over the side for landing larger fish. To optimise the use of the cradle ... a series of modifications were trialed to optimize the handling of the cradle, achieve rapid ...
Meeting Document : WG-FSA-18/48 Rev. 1 : Auteur(s): R. Sarralde, C. Heinecken and P. Lafite