Resultados de la búsqueda
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Procellaria aequinoctialis
Common Name: White chinned petrel Species Code: PRO Family: Procellariidae ...
Species
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Laboratory target strength measurements of free swimming Antarctic krill (Euphausia superba)
single animal insonifications. For mean length classes in the range [29.6, 36.2] mm the median single ... -animal target strengths are in the range [-76.7,-71.8] dB. Monte Carlo computer simulations were used to ...
Meeting Document : WG-EMM-97/75 : Autor(es): Pauly, T., Penrose, J.D.
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Scientific Abstracts 1992
affected by a frequent cause of bias in single-animal measurements, namely thresholding. Theoretical ... estimates show a non-monotonic dependence of target strength on both animal size and transmit frequency ... , notwithstanding admitted shortcomings. Some recent single-animal measurements of target strength for live ... CCAMLR Member nations are willing to tolerate changes in current fishing patterns. WG-KRILL-92/15 Review ...
Document : Site Section: Publications
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In situ target strength measurements of Antarctic zooplankton (Euphausia superba and Salpa thompsoni) at 120 khz and 200 khz, corroboration of scattering models, and a statistical technique for delineating species
midwater trawl was used to sample the zooplankton populations and animal length-frequency data were ... scattering is from each animal's spheroidal nucleus. Consistent with the measurements of encaged krill ... scattering models and empirically derived distributions of animal sizes, a technique is developed for ...
Meeting Document : WG-Krill-94/12 : Autor(es): D.A. Demer and R.P. Hewitt (USA)
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Some considerations on the usefulness of CPUE data from Japanese krill fishery in the Antarctic
on the information recorded on log book. While searching behaviour seems to be the basis of this ...
Meeting Document : WS-KCPUE-85/04 : Autor(es): Y. Shimadzu and T. Ichii (Japan)
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Analysis and modelling of the Soviet Southern Ocean krill fleet, II: Estimating the number of concentrations and analytical justification for search data
, data collected by research or survey vessels (both navigational log-book and fishing logbook ... , Hobart, Tasmania, Australia. SEVBER, G.A.F. 1982. The Estimation of Animal Abundance. 2nd Ed. New York ... activity. From log-book data it is impossible to tell if krill were present in this region and no fishing ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 283–322 : Autor(es): Mangel, M.
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Scientific Abstracts 2000
wearing neck collars of man-made debris. One ad- ditional sighting was of an animal that had been ... . As usual this was higher (by 46%) than the pro- portion of fur seals sighted with the same injuries ... before the CCAMLR pro- hibition on their use in 1994. The number of animals showing severe injuries was ... pro- portion of polypropylene packaging bands SC-CAMLR-XIX/BG/5 Beach debris survey – Main Bay, Bird ...
Document : Site Section: Publications
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CPUE and proportional recruit indices from Japanese krill fishery data in Subarea 48.1
1980 through 1996 were calculated based on the log book data from Japanese commercial krill trawlers ...
Meeting Document : WG-EMM-97/35 : Autor(es): Ichii, T., Kawaguchi, S., Naganobu, M.
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Scientific Abstracts 2001
animal could be sexed, males dominated the observations, comprising 67% of records over winter and 59 ... aimed at fishermen. CCAMLR keeps the issue of marine debris under annual review. SC-CAMLR-XX/BG/18 ... Review of data submitted by Members on marine debris and its impact on marine living resources. CCAMLR ... Secre- tariat to review the historical development of CEMP indices and ecosystem assess- ments. This ...
Document : Site Section: Publications
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Telemetry monitoring of ecological resources
the application where a radio marker beacon is attached to an animal and the animal then relopated ... closure. If the animal is not active the clock will not be reset and the clock sends an output after a ... Nimbus system. However, animal tracking using satellites began in earnest with the Argos system. The ... frequency may cause a problem, however, if the tag frequency is within the hearing range of the animal ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 495-511 : Autor(es): Kuechle, V.B.