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Midwater trawl catchability regarding quantitative estimation of krill biomass using the method of trawling surveys on abundance
distributional pattern in the surveyed area enable to increase reliability of the biomass estimates. Comparative ... trawling surveys on abundance. Small research trawls were found to have high catchability variations in the ...
Meeting Document : WG-KRILL-91/32 : Автор(ы): S.M. Kasatkina (USSR)
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Environmental variability effects on marine fisheries: four case histories
fishery stocks in which environmental control is a major contributor to structuring the abundance and ... strategies for exploited fisheries must include effects of environmental variability. In particular ...
Meeting Document : WG-EMM-97/66 : Автор(ы): Hofmann, E.E., Powell, T.M.
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Summary of monitoring and research activities at Svarthamaren, Dronning Maud Land
-178,240 (mean 119,000). Assuming that about 10 % of the colony is situated in inaccessible parts outside ... in addition to the numbers of birds breeding. Author(s): Lorentsen, S., Tveraa, T., Røv, N. Title ... the area covered by the monitoring system the mean number of pairs producing a chick each year is ... about 132,000. On average 52% of the reproductive fraction of the population breeds each year indicating ...
Meeting Document : WG-EMM-97/78 : Автор(ы): Lorentsen, S., Tveraa, T., Røv, N.
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An assessment of the conservation status of albatrosses
highest proportion of threatened species in any bird family that comprises more than a single species. Of ... the 24 albatross species recognized in the new taxonomy, two species (Amsterdam Albatross and Chatham ...
Meeting Document : WG-FSA-97/59 : Автор(ы): Croxall, J.P., Gales, R.
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VPA as one of the approaches for settling a problem of Patagonian toothfish, Dissostichus eleginoides, population quantity (Subarea 48.3, South Georgia)
Abstract: In order to avoid several problems associated with assessing the D. eleginoides stock ... in Subarea 48.3, it has been proposed to use the FAO programme ANACO (Mesnil, 1989) which allows one ...
Meeting Document : WG-FSA-95/14 : Автор(ы): Shlyakhov, V.A.
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The SCAR Antarctic digital topographic database
collaborative project between 11 nations. Data capture was co-ordinated in the UK, under the auspices of the ... foundation for future GIS needs in Antarctic research. Products already derived from the database include ... Scientific Committee on Antarctic Research (SCAR), during a two-year period. Over 200 maps, at scales ranging ...
Meeting Document : SC-CAMLR-XII/BG/16 : Автор(ы): Delegation of United Kingdom
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Feeding of nine Antarctic fish species and their daily ration evaluations
carded out in the Cosmonauts Sea (67°50 S- 41°25 E) in March 1988. The type of food consumed by ...
Meeting Document : WG-FSA-91/08 : Автор(ы): Ye. A. Pakhomov and V. B. Tseitlin (USSR)
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Accumulation of fishing debris, plastic litter and other artefacts on Heard Island and Macquarie Island, Southern Ocean
Abstract: Sections of coastline of Heard and Macquarie Islands were surveyed for marine debris in ... surveys in 1986-87 at Heard Island, and 1988 at Macquarie Island. The minimum rate of artefact ... accumulation was 13 objects km-1 year-1 for Heard Island, and 9.1 objects km-1 year-1 for Macquarie Island ...
Meeting Document : CCAMLR-VIII/BG/11 : Автор(ы): D.J. Slip and H.R. Burton (Australia)
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Формы данных по траловому промыслу рыбы и отчета о рейсе
Description / Abstract: Logbook data are collected by scientific observers participating in the ... . Observers should complete all of the parts of the report that are relevant to the fishery in which the ...
Form
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Формы данных по траловому промыслу криля и отчета о рейсе
Description / Abstract: Logbook data are collected by scientific observers participating in the ... . Observers should complete all of the parts of the report that are relevant to the fishery in which the ...
Form
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