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Estimating the abundance of pack-ice seals off east Antarctica
. Sighting surveys were undertaken along almost 10,000 km of survey transect from an icebreaker and two ... helicopters to estimate the density of seals hauled out on the ice in survey strips. The probability of ... -linked dive recorders were deployed on a sample of seals to estimate the probability of seals being ... hauled out on the ice at any time of day. Due to non-random placement of survey transects, model-based ...
Meeting Document : WG-EMM-05/23 : Автор(ы): C. Southwell (Australia), D. Borchers, C. Paxton (United Kingdom), B. de la Mare (Canada), P. Boveng (USA), A.S. Blix and E.S. Nordoy (Norway)
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SCAR-MARINE BIODIVERSITY INFORMATION NETWORK 2010 AND BEYOND
(financial or in-kind), on an equitable basis, to sustain and further the services SCAR-MarBIN presently ... Change on its ecosystems, Antarctic marine biodiversity information has to be widely published ... and open access to this information. The two main achievements of SCAR-MarBIN are the development of a ... , which aggregates the information on the web portal (90 datasets; 1,000,000 records). SCAR-MarBIN is ...
Meeting Document : CCAMLR-XXVII/BG/35 : Автор(ы): Delegation of Belgium
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Peches exploratoires dans la sous-zone 58.6, resultats des campagnes 1983 a 1995
only one Nototheniid fish Dissostichus eleginoides. The other species have no future for a commercial ... -adults and adults as observed in the division 58-5-1 (Kerguelen) located more easternly. Two geographical ... and even along one fishing experiment despite a limited fishing effort. Two hypothesis are proposed to ... running experiments do not allow to consider and work out a plan an high fishing effort (or in the future ...
Meeting Document : WG-FSA-95/10 : Автор(ы): Duhamel, G.
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Fishing gear, marine debris and oil associated with seabirds at Bird Island, South Georgia, 2002/03
longline hooks in offal and bycatch is of concern. Based on items found in regurgitates, an estimated 630 ... such annual report. As in most previous years, more items of fishing gear (mostly longlining gear) and ... giant petrels (northern and southern) was the second highest on record, and included five cases of ... , though numbers of both decreased slightly since last year. The quantity of fishing gear associated with ...
Meeting Document : SC-CAMLR-XXII/BG/09 : Автор(ы): Delegation of the United Kingdom
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Composition and vertical distribution of the benthopelagic ichthyofauna of the southern part of the Kerguelen ridge
trawls during the integrated surveys in December 1977 and in January 1978 on Elan Bank consisting of two ... with depth and they were quite abundant. Most abundant on Elan Bank were Macrourus whitsoni, Antimora ... rostrata and Alepocephalus sp. cf. antipodiana. The paper contains an annotated list of species and a brief ...
Meeting Document : WG-FSA-96/13 : Автор(ы): Piotrovsky, A.S.
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EXTRAPOLATING CONTINUOUS PLANKTON RECORDER DATA THROUGH THE SOUTHERN OCEAN USING BOOSTED REGRESSION TREES
, called BRT (Boosted Regression Trees), to data on the distribution of Oithona similis, a small cyclopoid ... estimate abundances of O. similis through the Southern Ocean. We present a number of methods for ... be done on a tow by tow basis as there is significant within-tow correlation. (2) Spatial cross ... fitted relationships explained 28–38% of the total variance in abundance (depending on method of cross ...
Meeting Document : WG-SAM-08/12 : Автор(ы): M.H. Pinkerton, A.N.H. Smith (New Zealand), B. Raymond, G. Hosie (Australia) and B. Sharp (New Zealand)
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The toothfish fishery and tagging program in the Amundsen Sea region (SSRUs 882C–H) to 2016/17
region are precautionary and we recommend extending the current research plan for 2018 season. No ... plan to recapture tagged fish, and providing key information on the size of the population in the South ... in the 2018 season. Catch rates, length frequency data, access to research blocks and Chapman biomass ... estimates for the North and South areas all indicate that the current catch limits in the Amundsen Sea ...
Meeting Document : WG-FSA-17/39 : Автор(ы): S. Parker and S. Mormede
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Circumpolar connections between Antarctic krill (Euphausia superba Dana) populations: Investigating the roles of ocean and sea ice transport
pathways of krill have until now been on regional scales and have not taken explicit account of sea ice ... Modelling (OCCAM) project model together with satellite-derived sea ice motion vectors to examine the ... variability has implications for the ecosystem around the island. The inclusion of sea ice motion leads to the ... identification of source regions for the South Georgia krill populations additional to those identified when only ...
Meeting Document : WG-EMM-07/P10 : Автор(ы): S.E. Thorpe, E.J. Murphy and J.L. Watkins (United Kingdom)
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Results of 2016 pop-off satellite archival tagging of Antarctic toothfish in the Ross Sea region
partial). On the northern seamounts, two of 3 PSAT tags scheduled to pop-off on February 1, 2017 reached ... to deploy pop-off satellite archival (PSAT) tags on Antarctic toothfish (Dissostichus mawsoni) on the ... objectives were to characterize movement and habitat preferences, compare two different commercially ... after the 2015/16 toothfish fishing season had ended. A total of 10 PSAT tags from two manufacturers ...
Meeting Document : WG-SAM-17/33 : Автор(ы): C.D. Jones and S.J. Parker
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Krill density, biomass, proportional recruitment and recruitment index in the elephant island region during the period 1977 to 1997
/95 and an average 1995/96 krill year-class (below average for proportional recruitment, average for ... indices for this time series. New survey results of the past two seasons indicate a very successful 1994 ... Abstract: The Elephant Island long-term data set was updated for krill density and proportional ... absolute recruitment). After a period of low krill density in the area for almost a decade, krill density ...
Meeting Document : WG-EMM-97/29 : Автор(ы): Loeb, V., Siegel, V., Gröger, J.
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