Resultados de la búsqueda
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Acoustic data for the 1994 Krill Flux Workshop
yield mean krill density along an arbitrary section through the survey area, giving results compatible ... with the specifications given in wg-krill-93 Appendix D. A program written to calculate such sections ... compatible vectors of krill density and current speed along specified sections Author(s): Secretariat Title ... : Acoustic data for the 1994 Krill Flux Workshop Approval: Approved ...
Meeting Document : WS-Flux-94/04 : Autor(es): Secretariat
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Detection of growth zones in the eyestalk of the Antarctic krill Euphausia superba (Dana, 1852) (Euphausiacea)
Abstract: No reliable measures of age currently exist in the Antarctic krill, Euphausia superba ... for identifying growth zones. The krill was collected at the South Orkney Islands during January and ... the number of zones and body length. Further knowledge about molting process in the Antarctic krill ... and a verification of the ageing procedure from krill with a known age is needed before the number of ...
Meeting Document : WG-EMM-16/P02 : Autor(es): B.A. Krafft, M. Kvalsund, G. Søvik, E. Farestveit and A.-L. Agnalt
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2007 krill biomass update of the South Shetland and Elephant Island regions of Area 48
Abstract: Antarctic krill biomass trends in the South Shetland Island region of Area 48 are ... krill delineation model are used to derive krill biomass. This paper provides updated (through summer ... from Author(s): C.S. Reiss and A.M. Cossio (USA) Title: 2007 krill biomass update of the South ...
Meeting Document : WG-EMM-07/31 : Autor(es): C.S. Reiss and A.M. Cossio (USA)
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Preliminary results of a survey on krill, environment and predators in CCAMLR Subarea 88.1 carried out in December 2003 and in January 2004 (Project 8.4)
88.1 (Ross Sea): acoustic survey on two krill species (E. superba and E. crystallorophias), net ... samplings on krill and other pelagic species, visual samplings on krill predators, CTD and XBT samplings on ... . Catalano (Italy) Title: Preliminary results of a survey on krill, environment and predators in CCAMLR ...
Meeting Document : WG-EMM-04/71 : Autor(es): M. Azzali, A. Russo, A. Sala, A. de Felice, B. Catalano (Italy)
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Report of the international workshop on understanding living krill for improved management and stock assessment
stock assessment (referred to Krill workshop here after) was held at Port of Nagoya Public Aquarium ... Abstract: The international workshop on understanding living krill for improved management and ... place regarding to the future research on live krill. Special Volume of the workshop will be published ... international workshop on understanding living krill for improved management and stock assessment Approval ...
Meeting Document : WG-EMM-03/56 : Autor(es): S. Kawaguchi (Australia) and M. Naganobu (Japan)
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A hydroacoustic survey of Antarctic krill populations in CCAMLR Division 58.4.1
include hydroacoustic determinations of krill distribution and abundance and physical oceanographic ... data on krill distribution and abundance will be submitted to CCAMLR for the purpose of setting a ... precautionary catch limit on the krill fishery in Division 58.4.1. Author(s): Nicol, S. Title: A hydroacoustic ... survey of Antarctic krill populations in CCAMLR Division 58.4.1 Approval: Approved ...
Meeting Document : WG-EMM-95/43 : Autor(es): Nicol, S.
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Some components of uncertainty in the CCAMLR 2000 acoustical survey of krill
acoustical estimate of krill abundance in FAO statistical area 48. The variance in system calibration was ... absorption, and beam characteristics. Uncertainty in krill target strength (TS) was estimated using a ... distorted wave born approximation model of krill TS, fitted with measured distributions of animal lengths ... assumed the three frequency measurements provided independent estimates of the krill biomass. The overall ...
Meeting Document : WG-EMM-00/49 : Autor(es): D.A. Demer (USA)
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Catch per unit effort data from the early years of commercial krill fishing operations in the Atlantic sector of the Antarctic
Abstract: Catch Per Unit Effort data are presented from krill fishing operations in CCAMLR ... validity of the CPUE index is discussed as an indicator for krill abundance/biomass and caution is ... the amount of krill available in a Statistical Subarea. Overall length frequency distributions from ... influence the representativeness of krill smaller 35 mm in the catches. Author(s): Sushin, V., Siegel, V ...
Meeting Document : WG-EMM-97/22 : Autor(es): Sushin, V., Siegel, V.
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Estimating density and biomass of Antarctic krill around South Sheltland Islands using the 2-dB difference method
Abstract: The distribution and abundance of krill aggregation inhabiting the Subarea 48.1, which ... 2016 and 38 and 200 kHz from March 6 to 14 in 2017. Krill were collected by the commercial middle trawl ... survey. The weighted krill density and biomass were estimated to be 0.20 g/m 2 and 18 thousand tons (CV ... v difference-3.0-13.8 dB in 2017, respectively. Krill density and biomass were significantly higher ...
Meeting Document : WG-EMM-17/08 : Autor(es): S.-G. Choi, K. Lee and D. An
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Reconciling theoretical versus empirical target strengths of krill; effects of phase variability on the distorted wave Born approximation
Abstract: A model was recently proposed to predict the target strengths (TS) of Antarctic krill ... elements of a discretized bent cylinder (krill model) causes a dramatic flattening in the side-lobe regions ... krill TS measurements in McGehee et al. (1998). Thus, by accounting for phase-variability in the ... solution of the DWBA model, a more accurate and thus practical tool is developed for predicting krill TS ...
Meeting Document : WG-EMM-02/50 : Autor(es): D.A. Demer and S.G. Conti (USA)