Résultats de la recherche
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Comparison of krill density estimated with swarm-based and dB-difference method using acoustic data collected by Chinese fishing vessel participating in the 2019 Area 48 survey
Abstract: To address the effect of various identification methods on krill biomass estimates ... , comparison on the swarm-based and dB-difference (Sv 120kHz-Sv 38kHz) identification method were made using ... the acoustic data collected around the South Shetland Islands in Subarea 48.1 by the Chinese fishing ... vessel F/V Fu Rong Hai during the 2019 Area 48 survey. Identification window of swarm-based template were ...
Meeting Document : SG-ASAM-2019/06 : Auteur(s): X. Yu, X. Wang, J. Zhang and X. Zhao
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Breeding numbers and success of Eudyptes penguins at Marion Island, and the influence of arrival of adults
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 ... Rockhopper Penguins the mass of females on arrival, was significantly related to breeding success. Therefore ... significantly correlated with that of females. Although both species had low weights on arrival after the El ...
Meeting Document : WG-EMM-05/38 : Auteur(s): R.J.M. Crawford, J. Cooper, B.M. Dyer and L.G. Underhill (South Africa)
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Foraging patterns in the Antarctic shag (Phalacrocorax bransfieldensis) at Harmony Point, Antarctica
reduce the extension of the foraging trips which in years of scarce food availability may no result in ... Abstract: During the 1995/96 and 1996/97 summer seasons the foraging pattern of the Antarctic ... usually foraged once a day; females early in the morning and males when their partners returned to the ... nests. During the rearing period the parents incremented the number of daily foraging trips usually ...
Meeting Document : WG-EMM-04/22 : Auteur(s): R. Casaux and A. Baroni (Argentina)
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Modelling egg and larval transport of Antarctic toothfish (Dissostichus mawsoni) in the East Antarctic region: preliminary result using satellite data
eddy activity) covering 2011-2018, we developed the particle tracking model to investigate egg and ... larval transport of the Antarctic Toothfish in the East Antarctic region. This paper presents the ... 2-year simulation. From the result of the BB region, while strong self retention on the BB was ... observed in the experiment A-1, the majority of particles were advected eastward in the experiment A-2. A ...
Meeting Document : WG-FSA-2019/63 : Auteur(s): M. Mori, K. Mizobata, T. Okuda and T. Ichii
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Stomach contents of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea region in 2010 and a comparison with 2003
data suggested there had been no change in the diet of large (> 100 cm TL) D. mawsoni between the ... Abstract: The stomach contents of 273 Dissostichus mawsoni captured by bottom longline in the ... Ross Sea region during the 2010 summer fishing season were analysed. The D. mawsoni sampled were caught ... items, of which 13 contained only digested prey, leaving 185 stomachs for analysis. The majority of ...
Meeting Document : WG-FSA-10/22 : Auteur(s): D.W. Stevens, J. Forman and S. Hanchet (New Zealand)
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Analysis of the sea-ice concentration (SIC) in Subarea 48.6, research blocks 2, 3, 4 and 5 with sea-surface temperature (SST) and statistical models
Abstract: An Analysis of the sea ice concentration (SIC) in research blocks 2,3,4, and 5 of ... , the SIC in 2019 was the highest for the last 4 years (2016-2019). For research block 5, the SIC in ... 2019 was also as high as in 2016 but around the west of block 5 the SIC in 2019 was much lower than in ... 2016. The lower SST anomalies corresponds to the higher SICs in 2019 both in research blocks 4 and 5 ...
Meeting Document : WG-SAM-2019/15 : Auteur(s): T. Namba, R. Sarralde, H. Pehlke, K. Teschke, T. Brey, S. Hain, T. Ichii, T. Okuda, S. Somhlaba and J. Pompert
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The Mapping Application for Penguin Populations and Projected Dynamics (MAPPPD) database: a tool for helping stakeholders monitor penguin population trends in Antarctica
) and the ATS's Visitor Site Guidelines. The database underlying MAPPPD includes all publicly ... Abstract: The Mapping Application for Penguin Populations and Projected Dynamics (MAPPPD) is a ... organizations, and policymakers working to meet the management objectives as set forth by The Commission for the ... Conservation of Antarctic Marine Living Resources (CCAMLR) and other components of the Antarctic Treaty System ...
Meeting Document : WG-EMM-2019/26 : Auteur(s): G.R.W. Humphries, P. Trathan, R. Naveen, C. Che-Castaldo and H.J. Lynch
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Proposal for a dedicated krill survey for CCAMLR Division 58.4.1 during 2018/19 season by the Japanese survey vessel, Kaiyo-maru
Japan. No krill biomass has been estimated in the Division since 1996 when Australia carried out BROKE ... . There are two main objectives of our survey: (1) estimation of krill biomass to update B 0 in the ... division and (2) oceanographic observations in the area to detect long term changes if any. Japanese ... research vessel, Kaiyo-maru, will be used in the survey. The krill survey (echosounder and RMT) and ...
Meeting Document : WG-EMM-17/05 : Auteur(s): H. Murase, K. Abe, T. Ichii and A. Kawabata
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Biomass results from the International Synoptic Krill Survey in Area 48, 2019
Abstract: Results from the International Synoptic Krill Survey in Area 48, 2019, are presented ... . This survey covered both the strata occupied during the CCAMLR 2000 acoustic survey and the strata that ... comprise the regular AMLR survey. Acoustic transects (10534 n.mi), oceanographic measurements (253 casts ... ), and trawls (164) were carried out as per survey procedures developed in 2018, which were based on the ...
Meeting Document : SG-ASAM-2019/08 Rev. 1 : Auteur(s): G. Macaulay, G. Skaret, T. Knutsen, O.A. Bergstad, B. Krafft, S. Fielding, S. Choi, S. Chung, K. Demianenko, V. Podhornyi, K. Vishnyakova, L. Pshenichnov, A. Chuklin, A. Shishman, X. Wang, X. Zhao and M. Cox
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Report of biological observations carried out on board the krill fishing vessel More Sodruzhestva in April to August 1991
and 35 to 36 mm made up the bulk of catches in the south-east of the subarea. No by-catch of juvenile ... Abstract: An observation program was carried out by a biologist-observer on board the krill ... fishing vessel More Sodruzhestva in April to August 1991 in Subareas 48.2 and 48.3. The program included ... physiological status and size composition of krill and also for determining the level of by-catch of juvenile ...
Meeting Document : WG-KRILL-92/06 : Auteur(s): V.I. Latogursky (Russia)