Resultados de la búsqueda
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Spatial scales of benthic invertebrate habitats from fishery by catch and video transect data in the Ross Sea region
occurred at a typical scale of 10-30 km 2, though some sponge habitats appeared larger. Spatial analysis of ... habitats also varies among four benthic bioregions developed for the Ross Sea. Together, the data show that ...
Meeting Document : WG-EMM-10/28 : Autor(es): S.J. Parker, R.G. Cole and S.M. Hanchet (New Zealand)
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Preliminary studies on age, growth and size at sexual maturity of Dissostichus eleginoides in the Ob-Lena Bank in the 2007/08 season
tended to overestimate for < 30 years, but underestimate for > 30 years, as compared to AAD readers ... comments. The estimated ages ranged from 5 to 48 years for males and from 4 to 48 years for females. Ten to ... fifteen years gave large contribution to the total age groups for both sexes. Females grew at a faster ... sampled by Observers were estimated last year. Then, we took several advice and comments about the methods ...
Meeting Document : WG-FSA-11/16 : Autor(es): K. Taki, T. Iwami and M. Kiyota (Japan)
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Report on attendance at the Sixth Meeting of the Committee for Environmental Protection Under the Madrid Protocol
containing three options. ”Having regard to the provisions of Articles 4 and 5 of the Protocol, and Article 7 ... Member (Chile) noted the value of the precautionary ecosystem approach to issues raised by bioprospecting ... Protected Area (SPA) completed. This year the CEP approved several plans and it was noted that two (ASPA ...
Meeting Document : CCAMLR-XXII/BG/11 : Autor(es): Chair of the CCAMLR Scientific Committee
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Preliminary analyses in support of the CEMP Review Workshop: power analyses
and 20 years. Generally, time series arising from 5 annual surveys provided little power to detect ... , C1 under the survey scenarios of 10 and 20 years and alpha levels of 0.05 or greater. Author(s ...
Meeting Document : WG-EMM-03/26 : Autor(es): Secretariat
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Further analysis of spatial patterns of benthic invertebrate habitats from fishery bycatch in the Ross Sea region
evidence of VME taxa. Identifiable sponge and/or gorgonian habitats occurred at a typical scale of 10-30 km ... varies among four benthic bioregions developed for the Ross Sea. Together, the data show that vulnerable ...
Meeting Document : WG-FSA-10/30 : Autor(es): S.J. Parker, R.G. Cole and S.M. Hanchet (New Zealand)
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Downward adjustments to local catch limits for the krill fishery in Subarea 48.1
Abstract: Here we compile four vignettes that, together, provide the basis for making downward ... with Article II of the Convention. Retrospective application of the decision rule to historical data ...
Meeting Document : WG-EMM-16/46 : Autor(es): Antarctic Ecosystem Research Division, Southwest Fisheries Science Center and NOAA Fisheries
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REVISED AGE AND GROWTH ESTIMATES FOR ANTARCTIC STARRY SKATE, AMBLYRAJA GEORGIANA, FROM THE ROSS SEA
growth, greater ages at maturity (about 20 years compared with 6–11 years) and greater maximum ages (28 ... that these skates initially grow very rapidly for about five years, after which growth almost ceases ... –37 years compared with 14 years). Several pieces of circumstantial evidence support the new ...
Meeting Document : WG-FSA-08/21 : Autor(es): M.P. Francis (New Zealand) and M.J. Gallagher (Ireland)
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Diving pattern and performance in nonbreeding gentoo penguins (Pygoscelis papua) during winter
were bimodal. Shallow dives (30 m; 55% of total number and 81% of dive time) averaged 74-105 m and 2.7 ... patterns, averaging 10-20 m at dawn and dusk and 70-90 m at midday. These results are consistent with the ... similar to that of chick-rearing birds. The only major differences are that foraging-trip frequency is 20 ... % less and stomach-content mass on return ashore 30% less in winter. We conclude that foraging activity ...
Meeting Document : WG-CEMP-92/37 : Autor(es): T.D. Williams (United Kingdom), A. Kato (Japan), J.P. Croxall (United Kingdom), Y. Naito (Japan), D.R. Briggs, S. Rodwell and T.R. Barton (United Kingdom)
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Status of krill target strength
cause of bias in single-animal measurements, namely thresholding. Theoretical estimates for the target ... dependence of target strength on both animal size and transmit frequency, notwithstanding admitted ... shortcomings. Some recent single-animal measurements of target strength for live euphausiids and euphausiid ...
Meeting Document : WG-KRILL-92/11 : Autor(es): K.G. Foote (Norway), D. Chu and T.K. Stanton (USA)
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Distribution of krill (Euphausia superba Dana) catches in the South Shetlands and South Orkneys
the literature are used to show that for some years, at distances of between 20 and 60 km from ... Abstract: Zones of 20 km width are defined around selected colonies of penguins distributed ... December to March was taken within 40 km of the coast, and 90% within 80 km in all years 1988-1990. In 1987 ...
Meeting Document : WG-KRILL-92/19 : Autor(es): D.J. Agnew (Secretariat)