Résultats de la recherche
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Increasing abundance of Type A killer whales (Orcinus orca) in the coastal waters around the Antarctic Peninsula
increasing in recent years, including observations of predation on a number of whale and pinniped species ... . Here we integrate satellite telemetry (n = 10 tags) and photo-identifications (13 years, 15,828 ... to 3048 km from tagging site). Photographic re-sightings of the same whales were common across years ... (up to 13 years), and a Bayesian mark-recapture analysis estimated that the average annual abundance ...
Meeting Document : WG-EMM-17/49 : Auteur(s): H. Fearnbach, J.W. Durban, D.K. Ellifrit and R.L. Pitman
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Longterm monitoring of krill recruitment and abundance indices in the Elephant Island area (Antarctic Peninsula)
the representativeness of the study area (60°- 62°30'S and 53°- 57°30 'W) for the ... confirmed by the present analysis. Results are compared for one (R1) and two year old (R2) age classes ...
Meeting Document : WG-EMM-96/45 : Auteur(s): de la Mare, W., Loeb, V., Siegel, V.
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Exploring variability in the locations used by the krill fishery in Area 48 in relation to intra- and inter-annual variability in seasonal sea ice
their behaviour, targeting fixed geographic locations in most years. In contrast, in Subarea 48.1 ... , fishing locations show considerable variability between years. In Subarea 48.2 ice cover tends to increase ... location in Subarea 48.1 has shifted in recent years with most catch being taken south of the South ... Shetland Islands since 2008/09 in contrast to earlier years when the mean catch location was always to the ...
Meeting Document : WG-EMM-14/11 : Auteur(s): J. Silk, S.L. Hill and P.N. Trathan (United Kingdom)
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Fishery Report 2013: Dissostichus eleginoides Crozet Island inside the French EEZ (Subarea 58.6)
represented by the year in which that season ended, e.g. 2013 represents the 2012/13 CCAMLR fishing season ... (from 1 December 2012 to 30 November 2013). FISHERY REPORT 2013: DISSOSTICHUS ELEGINOIDES ... the fishery. 3. The fishery is open year-round but most fishing effort takes place in February and ... and peaked the following year at an estimated 11 760 tonnes. 10. Estimates of IUU catch in Subarea ...
Document : Site Section: Publications
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CPUE indices used in Soviet krill fishery statistics from 1977 to 1992 and their possible utility for evaluation of relative changes in krill biomass
0 2 4 6 8 10 12 14 16 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 Catch per vessel ... 1986 to 1991 (RIF statistics). 0 5 10 15 20 25 30 35 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ... . 71 52 88 1 51 7 0. 20 66 14 0. 66 49 94 30 1 - - - - - - 24 . Su ba re ... grouped by subarea, period, standard vessel type, selected year, selected month, areas of krill fl eet ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 165–177 : Auteur(s): Litvinov, F.F., A.Z. Sundakov and V.I. Arkhipov
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Fishery Report: Dissostichus eleginoides (TOP) South Georgia (Subarea 48.3)
Throughout this report the CCAMLR fishing season is represented by the year in which that season ended, e.g ... . 2012 represents the CCAMLR fishing season from 1 December 2011 to 30 November 2012. FISHERY ... evenly over the entire SGSR shelf slope. Management Area A (West Shag) 43 30' W48 00' W ... Area C (South Georgia) 56 S 52 30' S 33 30' W SGSR stock area 2000m 1000m shagW shag ...
Document : Site Section: Publications
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Age estimation and maturity of the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea
results finding no significant differences between the years. Von Bertalanffy parameters for the pooled ... –at–maturity (10.6 years, 13.6 years) are presented for males and females respectively, using a ...
Meeting Document : WG-FSA-05/20 : Auteur(s): P.M. Marriott, M.J. Manning and P.L. Horn (New Zealand)
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A preliminary assessment of age and growth of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica
; the maximum estimated age was 14.3 years. Von Bertalanffy parameters derived for both sexes combined ... are: L, 22.1 cm SL; K, 0.167 y-1; t 0,-0.4 years. Parameter estimates were also derived for the sexes ... distribution exhibited a mode from age 6 to 9 years. Author(s): C.P. Sutton and P.L. Horn (New Zealand) Title ...
Meeting Document : WG-FSA-10/20 : Auteur(s): C.P. Sutton and P.L. Horn (New Zealand)
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Seabird research at Cape Shirreff, Livingston Island, Antarctica, 2006/07
nine year means for these parameters at our study site. The chinstrap penguin breeding population has ... higher than both last season and the past 10 year mean. Author(s): R. Orben, S. Chisholm, A. Miller and ... lowest population size in the 10 years of census data. The number of diet samples containing fish was the ... highest ever and comparable to the first six years of the study. Unlike 2005-06, 18% of the gentoo penguin ...
Meeting Document : WG-EMM-07/P1 : Auteur(s): R. Orben, S. Chisholm, A. Miller and W.Z. Trivelpiece (USA)
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Are krill recruitment indices from meso-scale survey representative for larger areas?
) and two-year old (R2) krill differ substantially between years. However, results were in conformity ... single-year outliers from Elephant Island are discussed as well as the problem of ‘undersized’ length ... classes of the age-one-group which occur in the samples of some years. Author(s): V. Siegel (Germany ...
Meeting Document : WG-EMM-02/20 : Auteur(s): V. Siegel (Germany), R.M. Ross and L.B. Quetin (USA)