Search results
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Data on krill (Euphausia superba Dana) consumption by coastal fishes in Division 58.4.2 (Kosmonavtov and Sodruzhestva Seas)
consumed is between 166 and 450 million tonnes; of this amount fish consume from 30 to 32 million tonnes ... in the Sodruzhestva and Kosmonavtov Seas over many years by the YugNIRO institute. Data obtained from trawl ... for a depth range of 100 to 500 metres in waters between 30 and 80°E. Krill consumption was estimated ... consume from 30 to 32 million tonnes (Lubimova, Shust, 1980 and Shust, 1987). However these extrapolated ... 166 and 450 million tonnes; of this amount fish consume from 30 to 32 million tonnes (Lubimova ... in the Sodruzhestva and Kosmonavtov Seas over many years by the YugNIRO institute. Data obtained from trawl ... for a depth range of 100 to 500 metres in waters between 30 and 80°B. Krill consumption was estimated ... , dont 30 a 32 sont consommees par des poissons (Lubimova and Shust, 1980; Shust, 1987). Cependant, i1 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 305–319 : Author(s): Pakhomov, Y.A., V.A. Bibik and V.V. Gerasimchuk
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Food consumption by predators in a CCAMLR integrated study region
period) and at-sea (rest of year). If periods ashore, when the animals are fasting, were regarded ... Environment Research Council, High Cross, Madingley Road, Cambridge CB30ET, UK Department of Mathematics ... reoprHH, H BKJIIOtIaeT HOBble xapaKTepHCTHKH, n03BOJISIIOII\He YtIHTblBaTb ce30HHYIO H3MeHtIHBOCTb ... \He H3MeHeHHSI, Bbl3BaHHble HCnOJIb30BaHHeM ::lTHX HOBblX nO,llMO,lleJIeH. Pe3YJIbTaTbl HCXO ... Paper Title: Food consumption by predators in a CCAMLR integrated study region Abstract ... consumption of seabird predators is provided. This model is a development of earlier ones used in the South ... Georgia Integrated Study Region and incorporates new features, allowing for seasonal variation in predator ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 489–519 : Author(s): Croxall, J.P., C. Ricketts and A.G. Wood
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Possible effects of different levels of krill fishing on predators – some initial modelling attempts
together with preliminary information on adult survival and breeding success patterns for certain krill ... abundance, by considering a krill dynamics model incorporating recruitment fluctuations together ... , by considering a krill dynamics model incorporating recruitment fluctuations together with preliminary ... level drops, the ratio of good to poor years for krill predators will decrease. The aim of subsequent ... of exploitation is indicated by K. The juvenile (first year) 'survival rate' incorporates the effects ... . These relationships are: 'bad' for each predator, to be interpreted respectively as follow: years in which both ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 79–97 : Author(s): Butterworth, D.S. and R.B. Thomson
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Investigations of required sampling regimes for environmental parameters
temperature over two years with a significance α of 0.05 and a power P of 0.8. Sampling wind speed ... continuously or as daily maxima and minima would be sufficient to detect a 10 to 20% change in monthly mean log ... mean temperature over two years with a significance α of 0.05 and a power P of 0.8. Sampling wind ... speed continuously or as daily maxima and minima would be sufficient to detect a 10 to 20% change ...
20% 23 40 55 32 50 68 30 ... day 10-20% High recording for one month daily multiple n-30 10-20% High recording ormax/min ... . ....e 970~-------~-------r------~-------r------'~-------"--~--~------~ o 1 0 20 30 days Figure ... 60 -c ~ - 50 "C Cl) Cl) c.. en 40 "C c: a: 30 E :l E 20 >< CU :1:E 10 ... Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 561–573 : Author(s): Agnew, D.J.
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Investigation of bias in the mark–recapture estimate of toothfish population size at South Georgia
simulation of releases by box over multiple years. The model performed as expected with test situations ... years. The model performed as expected with test situations. It produced a near-perfect estimate ... of toothfish typically move only 20–30 km each year (Marlow et al., 2003). This paper investigates ... . 50 20 03 20 04 Release positions for animals tagged in that year 40 W 43 ... for animals tagged in that year Fishing effort (graduated by number of hooks) Position of recaputre ... to estimate movement rates, measured as km/year. The available data comprised animals that had been ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 47–63 : Author(s): Agnew, D.J., G.P. Kirkwood, J. Pearce and J. Clark
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Preliminary atlas of Balaenopterid whale distribution in the Southern Ocean based on pelagic catch data
produced. The first series contains 24 maps of catches by species by month, and the second consists of 30 ... , plus three summary maps of fin whales catches for the years 1952/53–1961/62 combined, for each ... contains 24 maps of catches by species by month, and the second consists of 30 maps of catches of fin ... maps of fin whales catches for the years 1952/53–1961/62 combined, for each of the three months. ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 113-193 : Author(s): Mizroch, S.A. et. al
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A statistical method for estimating the level of IUU fishing: application to CCAMLR Subarea 48.3
/2000 and 2000/01. Each year fully covered the period 1 October to 30 September, thus including one ... /2000 and 2000/01. Each year fully covered the period 1 October to 30 September, thus including one ... have been at least one encounter with an FPV in a year; no encounters in a year are interpreted as zero ... of fish catch rate was calculated for each area and each year using reported catch and effort data ... . Each year fully covered the period 1 October to 30 September, thus including one summer and one winter ... or S A rg os H el en a 26 -F eb -9 7 20 -A ug -9 7 9 30 3. 49 91 .9 1 14 2 1. 54 ... 5 9 S C is ne V er de 20 -M ar -9 7 30 -M ay -9 7 6 99 .8 4 10 .2 44 4 0. 39 ... W C is ne V er de 20 -M ar -9 7 30 -M ay -9 7 6 36 6. 34 89 .3 29 4 0. 04 ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 119–141 : Author(s): Agnew, D.J. and G.P. Kirkwood
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Some principles for fisheries regulation from an ecosystem perspective
objectives are being met to be assessed. The advantages of using a feedback method of regulation ... objectives are being met to be assessed. The advantages of using a feedback method of regulation ... can be robustly estimated, thus allowing the degree to which objectives are being met to be assessed ... 06pa30M onpe,l(enHT b CTeneH b npH6nH~eHH.l1 K 3THM I.{en}lM. 06CYJK,l(aIOTC}l npeHM~eCTBa ... ,l(HbIe YPOBHH 3KCnJIya TaI.{HH 6bInH nOTeHI.{Han bHO YCTOHqHBbIMH. 3TO nOTpe6yeT nOJIyqeHH.l1 OI.{eHOK ... ~Ha.l1 3a,l(aQa, Tpe6~a.l1 Hcnonb30BaHH.l1 CHCTeMHoro aHanH3a. KpaTKO 06cym,l(aeTC.l1 nOJIb3a H3YQeHH ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 323-339 : Author(s): de la Mare, W.K.
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Refinements to the strategy for managing depleted fish stocks based on CCAMLR objectives
been put into effect the target years for recovery become fixed at 20 and 30 years after the procedure ... by year 20. However, the 95% probability of being above GNAl by year 30 is sensitive to the degree ... ____ ~ o 5 10 15 Year 20 25 30 35 Figure 1: Schematic illustration of the method of calculating subjective ... niveaux proches de ceux permettant un accroissement maximum net annuel dans les 20 ou 30 annees it venir ... states of a depleted stock, and take into account uncertainty in assessments. Sample calculations show ... that applying a policy of F 0.1 will not always lead to stock recovery in two to three decades, and ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 467–475 : Author(s): de la Mare, W.K. and A. Constable
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The Patagonian toothfish (Dissostichus eleginoides) fishery in the Kerguelen Islands (Indian Ocean sector of the Southern Ocean)
eleginoides) have been fished in the Kerguelen Islands zone for 20 years, firstly with trawlers and more ... for 20 years, firstly with trawlers and more recently with longliners. This is the oldest fishery ... in the Kerguelen Islands zone for 20 years, firstly with trawlers and more recently with longliners ... ‘Kerpêche’ for trawlers (split- years – 1 July to 30 June – 1979/80 to 2000/01) and in Excel tables ... during the year was studied to determine the spawning period. Mature animals (stages 3 to 5) only were ... between the two years is impossible, since the samples are not orthogonal (the number of animals caught ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 1–25 : Author(s): Lord, C., G. Duhamel and P. Pruvost