Resultados de la búsqueda
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Comparison of equal-area cylindrical and circular piston transducers
Abstract: Design of sondes for in situ measurement of zooplankton or other scatterers requires ... cylindrical transducers are also used for both transducer types. Comparison of theoretically computed beam ... of 20 dB, the active sonar equation is exercised to estimate the maximum detection range of both ... considerations argue for the choice of the circular piston transducer over the cylindrical transducer. Three ...
Meeting Document : WG-EMM-95/08 : Autor(es): Foote, K.G.
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New possibilities of krill-dependent indicator species monitoring – UAV survey in Subarea 48.1
Abstract: Unmanned Aerial Vehicles specially adapted for operation in polar regions were used to ... resolution GSD (ground sample distance) of 3-6 cm. Obtained images were used for the estimation of population ... : Adélie, gentoo and chinstrap penguins. In total approx. 30 000 nests in twelve breeding colonies were ... identified in 2016. The use of UAV for monitoring of indicator species enabled data acquisition from areas ...
Meeting Document : WG-EMM-17/03 : Autor(es): M. Korczak-Abshire, A. Zmarz, M. Rodzewicz, R. Storvold, M. Kycko, I. Karsznia, A. Kidawa and K.J. Chwedorzewska
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Breeding numbers and success of Eudyptes penguins at Marion Island, and the influence of arrival of adults
study colonies for both Macaroni Eudyptes chrysolophus and Eastern Rockhopper E. chrysocome filholi ... Penguins, over 26 and 22 years respectively, suggesting over-wintering conditions may influence the ... proportions of birds breeding. For both species the time of arrival of females for breeding, and for ... colonies were more strongly correlated for Macaroni Penguins than Rockhopper Penguins. Macaroni Penguins ...
Meeting Document : WG-EMM-05/38 : Autor(es): R.J.M. Crawford, J. Cooper, B.M. Dyer and L.G. Underhill (South Africa)
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Abundance, distribution, energy density and trophic position of euphausiids during winter 2012: preliminary results from the first US AMLR Winter Survey
collection and analysis of water samples from fixed depths. Net tows for euphausiids and other pelagic ... water column properties. Future years will include more detailed sampling using a multi-net tucker trawl ... , ice cores for examination of ice properties, and continued development of genomic studies to ... Abstract: The US AMLR Program has established a 5 year winter oceanographic and biological ...
Meeting Document : WG-EMM-13/40 : Autor(es): C. Reiss and C. Jones (USA)
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Collaborating to eliminate Illegal, Unreported and Unregulated (IUU) fishing in the Southern Ocean
been made in recent years, but there are some additional actions CCAMLR could take to make greater ... satellite enforcement project; implementing the new e-CDS; providing funding for Project Scale; and ... Document Release Consent: Yes Delegation responsibility for releasing documents: CCAMLR Secretariat ...
Meeting Document : CCAMLR-XXXV/BG/27 : Autor(es): Submitted by ASOC and COLTO
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Interannual variability of krill, salp and other zooplankton populations in the South Shetland Island area during Austral summer 1993–1998
". The 4-5 year periodicity of "salp years" over the past fifteen years is discussed with ... recruitment from the past two years. Unusually small juvenile krill in 1998 suggested that survival success ... regimes identified here as "cope pod years", "salp years" and "transition periods ... during the 1993 "salp year". The magnitude of this salp bloom may have resulted from a large ...
Meeting Document : WG-EMM-98/50 : Autor(es): V. Loeb, W. Armstrong, R. Hewitt (USA) and V. Siegel (Germany)
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Assessments of the Stocks of Notothenia rossii marmorata and Chamsocephalus gunnari in the South Georgia Area
Georgia area are assessed using USSR age sample data and recent biomass estimates from surveys by the FRG ...
Meeting Document : WG-FSA-86/02 : Autor(es): J. Cooke (IUCN)
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PRELIMINARY RESULTS FROM THE FIRST SURVEY SEASON OF ANTARCTIC KRILL AND APEX PREDATORS WITH THE COMMERCIAL FISHING VESSEL SAGA SEA IN THE SOUTH ORKNEY ISLANDS AREA 2011
survey each year for the next five years in the CCAMLR statistical Subarea 48.2 using the Norwegian krill ...
Meeting Document : WG-EMM-11/23 : Autor(es): B.A. Krafft, G. Skaret and L. Calise (Norway)
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Guidelines to whale photo-identification from fishing boats derived from experience in Kerguelen (ASD 58.5.1) and Crozet (ASD 58.6)
contributed to a whale photo-identification program for several years. This paper describes the gear used ...
Meeting Document : WG-FSA-13/08 : Autor(es): N. Gasco, P. Tixier and C. Guinet (France)
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A preliminary assessment of mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2014 random stratified trawl survey
population structure, abundance and yield for the area of Division 58.5.2 to the west of 79° 20’ E using ... standard CCAMLR methods. A pattern of multiple year classes being present simultaneously in the population ...
Meeting Document : WG-FSA-14/44 : Autor(es): D.C. Welsford (Australia)