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Physical data used in space averaging: Trophic modelling of the Ross Sea
Eicken (2003). We assume that the minimum average sea ice thickness for single year ice occurs on 1 ... The data on trophic compartments used in the model have been time and space averaged. The biomass for ... and corresponding areas for the study region used in this study, based on bathymetric data of Davey ... Arrigo & van Dijken (2004) is given (Figure 2c). Statistics on ice area for the Ross Sea, given by ...
Document : Site Section: Publications
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Cephalopods and mesoscale oceanography at the Antarctic polar front: satellite tracked predators locate pelagic trophic interactions
used satellite tagged predators and shipboard acoustics for coarse and fine scale location of ... located, an acoustic survey undertaken and a fixed station established where acoustic targets were found ... from food samples fed to D. chrysostoma chicks at Bird Island. Two CTD transects, approximately normal ... species. Net-sampled M. hyadesi had been feeding on crustaceans and mesopelagic fish. The cephalopod ...
Meeting Document : WG-EMM-96/12 : Autor(es): Murphy, E.J., Trathan, P.N., White, M.G., Bone, D.G., Hatfield, E.M.C., Rodhouse, P.G., Prince, P.A., Watkins, J.L.
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Survey design to estimate krill abundance during FIBEX
methodology for assessing the abundance of krill. The survey design used in the southwest Atlantic study area ... of the FIBEX is described in this paper. Sampling involved the use of echo sounders for estimating ... krill abundance as well as collection of data on the size, density and distribution of krill swarms. In ... addition, information on surface water temperature, salinity and fluorescence as well as on seabirds was ... participate in the experiment. The coordinated multiship part of the study was scheduled to take 30 days. Two ... the use of echosounders for estimating krill abundance and also providing information on the size ... . Assuming that an unbiassed estimate of mean krill density can be obtained for each sampled transect, the ... design is capable of providing an unbiassed estimate of density for each stratum. 2. Stratification ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 253–263 : Autor(es): Everson, I., I. Hampton and G.M. Jolly
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New Zealand Antarctic research programme
size over the last 10 years. Possible reasons for this, and for annual fluctuations in numbers breeding ... identifies the need for complementary Ross Sea baseline studies including: studies of primary productivity ... repeating the photographic surveys of rookeries on Ross Island using helicopters in December and January to ... photographed from an RNZAF C-130 in December. Details of methods and logistics are discussed. In New Zealand ...
Meeting Document : WG-CEMP-92/24 : Autor(es): P.R. Wilson (New Zealand)
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At-sea distribution and prey selection of Antarctic petrels and commercial fisheries
like seabirds. In the Southern Ocean, there is an extensive fishery for Antarctic krill Euphausia ... operations versus predators is needed to predict fishery-related impacts on krill-dependent predators. In ... Antarctic petrels was limited but varied greatly among and within years, and was high in some periods during ... by trawls or from krill taken by most Antarctic krill predators. Selectivity for specific Antarctic ...
Meeting Document : WG-EMM-16/P15 : Autor(es): S. Descamps, A. Tarroux, Y. Cherel, K. Delord, O.R. Godø, A. Kato, B.A. Krafft, S.-H. Lorentsen, Y. Ropert-Coudert, G. Skaret and Ø. Varpe
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CCAMLR-IX
Provisional Agenda for the Ninth Meeting of the Commission for the Conservation of Antarctic Marine Living ... Resources CCAMLR-IX/03 Review of formula for calculating Members’ contributions Executive Secretary CCAMLR ... -IX/04 Examination of the audited financial statements and appointment of an external auditor ... U.K. On designation and protection of CEMP sites Delegation of Argentina CCAMLR-IX/08 Designation and ...
Meeting
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Annual report of research fishing operations at Division 58.4.3a in the 2017/18 fishing season
Secretariat on the 21th August 2018. In this paper, the data set during current fishing season (2017/18) was ... Abstract: This paper presents the annual report of a multi-Member longline survey on Patagonian ... . One fishing cruise by French vessel (“ Mascareignes III ”) took place in May 2018 and caught 2.5 ... used for reporting the quantity of data, samples collected, and results of analysis as a progress ...
Meeting Document : WG-FSA-18/50 : Autor(es): Delegations of France and Japan
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Annual report of research fishing operations at Division 58.4.4b in the 2017/18 fishing season
3th August, 2018. In this paper, the data set during current fishing season (2017/18) was used for ... Abstract: This paper represents the annual report of a multi-member longline survey on Patagonian ... . One fishing cruise by French vessel (Ile Bourbon) took place in March 2018 and caught 1.6 tonne of D ... . eleginoides in 58.4.4b_2. The data set, C2 and Observer data, was provided by the CCAMLR Secretariat on the ...
Meeting Document : WG-FSA-18/67 : Autor(es): Delegations of Japan and France
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Linking acoustic scattering coefficient to krill fishery data: feasibility of estimating krill abundance using fishing survey
ecosystems and supports different levels of predators. It is also an important economic species for Antarctic ... per unit fishing area (CPUA) were studied for better understanding the feasibility of assessing krill ... abundance based on fishery data. The results showed that average catch of daytime trawls was significantly ... the maximum in 12:00- 15:00. CPUA and CPUE values reach the maximum in 12:00- 15:00. The pairwise two ...
Meeting Document : WG-EMM-17/44 : Autor(es): T. Wang, G.P. Zhu, J.F. Tong and L.X. Xu
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CLIMATICALLY DRIVEN FLUCTUATIONS IN SOUTHERN OCEAN ECOSYSTEMS
Abstract: Determining how climate fluctuations affect ocean ecosystems requires an understanding ... are propagated via the Antarctic Circumpolar Current into the South Atlantic (on time scales of more ... influence on short (less than six months) time scales. We find that across the South Atlantic sector, these ... affects the breeding success of seabird and marine mammal predators that depend on krill as food. Such ...
Meeting Document : WG-EMM-08/P02 : Autor(es): E.J. Murphy, P.N. Trathan, J.L. Watkins, K. Reid, M.P. Meredith, J. Forcada, S.E. Thorpe, N.M. Johnston and P. Rothery