Resultados de la búsqueda
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Peculiarities of icefish Champsocephalus gunnari (Channichthyidae) distribution in South Georgia area during the surveys made by STM Atlantida in 2000 and 2002
that pelagic part of the stock permanently existing during the day is not taken into account by bottom ... oceanological conditions, length-age composition of pelagic component may be formed by all size classes. Results ... of the fishery and investigations in Ch. gunnari habitat show that methodology of census surveys does ... quantitative assessment to be made for bottom (bottom net survey) and pelagic (hydroacoustic survey) components ...
Meeting Document : WG-FSA-03/55 : Autor(es): Zh.A. Frolkina, S.M. Kasatkina and N.N. Zhigalova (Russia)
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CCAMLR-XXX
needed in conservation measures that will govern the MPAs in CCAMLR in the future Delegation of Australia ... of observations and inspections in the CCAMLR Area 2010/11 season (1 July 2010–15 August 2011 ... Areas (Brest, France, 29 August to 2 September 2011) CCAMLR-XXX/BG/01 Rev. 1 List of documents CCAMLR ... Systems (VMS) CCAMLR-XXX/BG/45 Conservation measures revised in accordance with the advice from the ...
Meeting
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A life table for female Antarctic fur seals breeding at Cape Shirreff, Livingston Island
Abstract: Mark-resight data were analysed for five cohorts (1997-2001) to estimate age-specific ...
Meeting Document : WG-EMM-06/39 : Autor(es): M.E. Goebel, B.I. McDonald, J.D. Lipsky (USA), V.I. Vallejos, R.A. Vargas, O. Blank (Chile), D.P. Costa (USA) and N.J. Gales (Australia)
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Distribution and abundance of larval fishes collected in the western Bransfield Strait region, 1986–87
differences appear to be responsible for substantial shifts in species abundance relations between the two ... waters. Individual species demonstrated different distributional patterns suggesting that water mass ... influence, larval depth distribution, and behavioral differences may be involved. Estimated January-March ... but low compared to that of Notothenia gibberifrons (0.12 mm day-1). Author(s): Delegation of USA ...
Meeting Document : SC-CAMLR-VIII/BG/36 : Autor(es): Delegation of USA
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Dense populations of the Antarctic scallop (Adamussium colbecki) in Terra Nova Bay (Subarea 88.1J): potential VMEs adjacent to the Terra Nova Bay ASPA (No. 161)
perspectives. Particularly interesting is the evidence that populations in Terra Nova Bay area seem to be ... reinforce the concept that this scallop, locally very abundant but discontinuously distributed, must be ...
Meeting Document : WG-EMM-12/23 : Autor(es): M. Chiantore and M. Vacchi (Italy)
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Candidate baseline data for ecosystem indicators in the Ross Sea region
development. That plan will identify key research questions that aid in assessing the MPA’s efficacy in ... achieving its objectives. It may be helpful to have an agreed set of baseline data for key species which ... indicate the current status of marine ecosystems in the Ross Sea region. These data could then be used as ...
Meeting Document : WS-SM-18/02 : Autor(es): A. Dahood and G.M. Watters
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By-catch of fish in the krill fishery
results indicate that the by-catch of fish in the commercial krill fishery may be significant in some ... areas of the South Georgia shelf. The problem is thought to be least in open ocean krill fishing. File ... . Recently concern has been expressed that the fishery may be taking a significant by-catch of fish with the ... result that it may be responsible for significant levels of mortality in other harvested species (SC ... was very small, less than would be required by a commercial fishing fleet. Our results suggest that ... taken as by-catch during krill fishing operations from a research vessel. The results indicate that the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 381–401 : Autor(es): Everson, I., A. Neyelov and Y.B. Permitin
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Analysis of trawl data from the South Georgia krill fishery
fishery are produced. The measurements indicate that the krill fishery at South Georgia is geographically ... large number of trawls were undertaken by each,vessel, with trawls being shorter in duration during the ... with shooting and hauling the net were usually short and showed little variation, whereas the time ... associated with the actual trawl phase was longer and more variable. The distance between consecutive trawls ...
Meeting Document : WG-EMM-97/41 : Autor(es): Parkes, G., Trathan, P.N., Everson, I., Murphy, E.J.
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Inspection implementation report
Inspection reports received from 01 August 2018 to 31 July 2019. Observations and suggestions for the ...
Meeting Document : CCAMLR-38/BG/14 : Autor(es): CCAMLR Secretariat
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A composite recruitment index to describe interannual changes in the population structure of Antarctic krill at South Georgia
target or station net hauls is described. This composite index is compared with an index where density ... net hauls. Therefore, when the number of station net hauls is limited, bias is likely to be reduced if ... target net haul data can be included by using the composite recruitment index. This index is used to ... %), while between 1994 and 1998 the number of 1+ krill found in the population increased with a very ... use such data to calculate recruitment indices requires firstly that the samples can be considered ... obtaining acoustic estimates of krill density that can be used to transform the length-frequency data into ... that contributes to the observed density. This distribution will be referred to as the acoustically ... assumption that is supported by the work of Ricketts et al. (1992). A comparison of these methods with the ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 71–84 : Autor(es): Watkins, J.L