Resultados de la búsqueda
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Review of biological parameters for Ross Sea skates
is 14 years. However this may be a considerable underestimate, and true longevity may exceed 20 years ... . Age at sexual maturity for A. georgiana is estimated to be about 6–7 years for males and 8–13 years ...
Meeting Document : WG-FSA-06/31 : Autor(es): M.P. Francis (New Zealand)
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Revised research longline fishing proposal for Dissostichus spp. in Subarea 48.2, second season
Modelling (WG-SAM) during the meeting held in Buenos Aires, Argentina, on 26 to 30 June 2017. Among the ... real scientific collaboration that could be implemented after 2018 season, which was welcomed by the ...
Meeting Document : WG-FSA-17/27 : Autor(es): Delegation of Chile
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Biodiversity of the benthos off Kerguelen Islands: overview and perspectives
have been neglected and understudied during the last 30 years. The Kerguelen Plateau, situated at the ... Abstract: The Kerguelen Plateau possesses a very diverse benthic fauna. Over the years, the ...
Meeting Document : WS-MPA-11/P03 : Autor(es): N. Améziane, M. Eléaume, L.G. Hemery, F. Monniot, A. Hemery, M. Hautecoeur and A. Dettaï
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Estimates of local biomass with uncertainty for Antarctic (Dissostichus mawsoni) and Patagonian (D. eleginoides) toothfish in research blocks in Subareas 48.6 and 58.4
limits for 2018/19. The only research blocks in which there were adequate recaptures were 486_2, 486_3 ... limit should not exceed 20%. Author(s): CCAMLR Secretariat Title: Estimates of local biomass with ...
Meeting Document : WG-FSA-18/12 : Autor(es): CCAMLR Secretariat
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Krill catches and consumption by land-based predators in relation to distance from colonies of penguins and seals in the South Shetlands and South Orkneys
Abstract: Zones of 20 km width are defined around selected colonies of penguins distributed ... March was taken within 40 km of the coast, and 90% within 80 km in all years 1988-1990. In 1987 and 1988 ... are used to show that for some years, months and zones of distance from the shore the catch of krill ...
Meeting Document : SC-CAMLR-X/BG/07 : Autor(es): Secretariat
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Krill catches and consumption by land-based predators in relation to distance from colonies of penguins and seals in the South Shetlands and South Orkneys, 1987-1990
Abstract: Zones of 20 km width are defined around selected colonies of penguins distributed ... within 40 km of the coast, and 90% within 80 km in all years 1988-1990. In 1987 and 1988 75% of the catch ... for some years, months and zones of distance from the shore the catch of krill is 50% or more of the ...
Meeting Document : WG-CEMP-91/25 : Autor(es): D.J. Agnew (Secretariat)
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Entanglement of Antarctic fur seals Arctocephalus gazella in man-made debris at Bird Island, South Georgia during the 1992 winter and 1992/93 pup-rearing season
years and with twice as many seals suffering serious injuries. Almost all animals involved were juvenile ... categories of seal affected (60% juvenile males, 30% adult females) and the severity of injuries (40% serious ... ) was similar to previous years. The increased incidence of entanglement in both winter and summer is ... disturbing, particularly following two years of relatively low incidence. It cannot be accounted for by ...
Meeting Document : SC-CAMLR-XII/BG/06 : Autor(es): Delegation of United Kingdom
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Results of acoustic assessment of krill biomass in Subarea 48.2 during summer 1996
' S- 60°30' S and 42 °00' W- 50°00 'w within Subarea 48.2. The study area of 19.200 ... with between-tacks distance of 20 miles. The echosurvey was carried out diurnally. Krill target ... included no the southern part (southwards of 60 ° 30'S) of Subarea 48.2 where southwards off ... southwards of 60 ° 30'S amounts about (883±264.9) thous. t. Therefore, total krill biomass in Subarea ...
Meeting Document : WG-EMM-96/36 : Autor(es): Sunkovich, V.I., Kasatkina, S.M., Abramov, V.M., Polischuk, M.I., Sushin, V.A., Shnar, V.N.
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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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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)