Resultados de la búsqueda
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IUU Fishing in 2011/12 and development of methods to estimate IUU catches
paper includes: consideration of patterns and activities associated with IUU fishing in the CAMLR ... fishing and estimates of IUU catches, including further consideration of the recommendations of JAG. The ... Convention Area the methodology used in estimating IUU catches and trends in the CAMLR Convention Area a ... program of work for consideration aimed at improving the quality of information available to estimate IUU ...
Meeting Document : WG-FSA-12/11 Rev. 1 : Autor(es): Secretariat
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Meta-analysis of catch reporting in CCAMLR exploratory fisheries
Abstract: The Secretariat has prepared a meta-analysis of the target and by-catch reported in ... that were identified in 2015 remain apparent in the data. Measures to improve the quality of bycatch ... data reported in CCAMLR fisheries may include the development of a detailed manual on by-catch sampling ... CCAMLR exploratory fisheries (as an update to WG-FSA-15/04 Rev. 1). The number of fish belonging to ...
Meeting Document : WG-FSA-18/14 : Autor(es): CCAMLR Secretariat
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Alternative method of parameters accuracy calculation in CMIX procedure applied to toothfish recruitment estimation
recruitment calculations in S. Georgia area. The accuracy of mean length of component is high (CV~0.04), but ... CCAMLR program. The method can be used to determine the number of trawl stations in a survey to get the ... Abstract: The paper presents the application of the bootstrap method to estimate accuracy of ... . The method has been applied to data from UK survey in 2002 that WG-FSA-03 used for toothfish ...
Meeting Document : WG-FSA-04/69 : Autor(es): P.S. Gasyukov (Russia)
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An assessment of Chaenocephalus aceratus and Pseudochaenichthys georgianus in Subarea 48.3
for these two species by assuming that 75% of the ‘unidentified fish’ caught by the Soviet Union in ... ) (bycatch) limit of 300 tonnes would seem to be appropriate to allow recovery of both species in the near ... because of a lack of reliable biological and catch data. This paper attempts to reconstruct the fishery ... the years 1977 to 1988 consisted of catches of C. aceratus and P. georgianus. Biological, age-length ...
Meeting Document : WG-FSA-90/06 : Autor(es): D.J. Agnew (Secretariat) and K.-H. Kock (Germany)
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Energetics of diving in macaroni penguins
temperature did decline consistently during bouts of repeated diving of all durations and the mean decrease in ... accounted for 36% of the variation in dive duration. When VO2 was calculated for dives of different ... 26.2±1.4 ml min–1 kg–1 then only 92.8% of dives measured were within the cADL. Significant changes in ... factors other than Tab are important in determining the duration of dives and dive bouts. Lowered Tab will ...
Meeting Document : WG-EMM-03/39 : Autor(es): J.A. Green, P.J. Butler, A.J. Woakes and I.L. Boyd (United Kingdom)
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LIFE HISTORY BUFFERING IN ANTARCTIC MAMMALS AND BIRDS AGAINST CHANGING PATTERNS OF CLIMATE AND ENVIRONMENTAL VARIATION
survival of adults and in their propensity to breed annually, which are the vital rates that influence most ... against the effects of recent climate-driven habitat changes except for Antarctic fur seals, in the ... Southwest Atlantic. In this region of the Southern Ocean, the rapid increase in ecosystem fluctuation ... Abstract: The consequences of warming for Antarctic long-lived organisms depend on their ability ...
Meeting Document : WG-EMM-08/P05 : Autor(es): J. Forcada, P.N. Trathan and E.J. Murphy
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Spatial distribution of Champsocephalus gunnari in Subarea 48.3. Some implications for parameter estimation
(as in the estimation of the variance of the mean density) might result in a gross underestimation of ... Abstract: Results of the analysis of three consecutive cruises to subarea 48.3 are analyzed. A ... significant variance component associated with the formation of clusters of stations was found as well as a ... the variance. The spatial pattern of density across years might be applied to construct a model of ...
Meeting Document : WG-FSA-96/30 : Autor(es): Calcagno, J., Gonzalez, B., Marschoff, E.
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Estimates of bird by-catch by IUU vessels in Subarea 48.3, 1998–2001
by other vessels in 1997. Including the Isabel data and weighting the bootstrap estimates of bird ... catch rate by the number of hooks observed leads to revised estimates of total catch in 1999, 2000 and ... Abstract: Estimates of bird catches by IUU fishing made using the new method presented by Agnew ... and Kirkwood last year (WG-FSA-02/4 & 5) are updated to take account of the comments of the ...
Meeting Document : WG-FSA-03/56 : Autor(es): D.J. Agnew (United Kingdom)
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New possibilities of krill-dependent indicator species monitoring – UAV survey in Subarea 48.1
software. In selected colonies a comparison with the results of measurements taken at the same time from ... identified in 2016. The use of UAV for monitoring of indicator species enabled data acquisition from areas ... performed. The total flight time of the missions was 40 hours and 56 minutes. Flights covered the area of ... resolution GSD (ground sample distance) of 3-6 cm. Obtained images were used for the estimation of population ...
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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Variations in food composition and feeding intensity of mackerel icefish (Champsocephalus gunnari) at South Georgia
) around Shag Rocks and the mainland of South Georgia was investigated in January/February 1985, January ... of krill and Themisto in the diet items varied considerably between the three seasons, whereas the ... proportion of mysids in the diet remained fairly constant. krill is obviously the prefered diet. In years of ... Abstract: The diet composition and feeding intensity of mackerel icefish (Champsocephalus gunnari ...
Meeting Document : WG-FSA-92/26 : Autor(es): K.-H. Kock (Germany), I. Everson (United Kingdom), S. Wilhelms (Germany), S. Campbell (United Kingdom), J. Szlakowski (Poland), G. Parkes (United Kingdom), Z. Cielniaszek (Poland) and C. Goss (United Kingdom)