Search results
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Acoustic data analysis and models of krill spatial distribution
4-5.HHBap.H 1987 r., HCnOJIb30BaHbI B Tpex THnax onHCaHH$l npocTpaHcTBeHHoM arpera~HH KPHJI$l: cneKTpaJIbHOM ... KPHJI$l. B .l{Hana30He 2-20 KM cneKTp BOJIHOBbIX q,flceJI HanOMHHaeT OeJIbIM llIYM, XOT ... $l B .l{Hana30He MeHbllIe 1 KM B cneKTpe HaOJIIO.l{aeTC$l 3HaqHTeJIbHa$l nOTep.H 3HeprHH. TIOJIYMHorooopa3He ... an areal estimate of krill biomass (g/m2). The resulting traces were then subdivided into 16 series of 64 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 311–329 : Author(s): Morin, A., A. Okubo and K. Kawasaki
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Size and density of krill layers fished by a Japanese trawler in the waters north of Livingston Island in January 1988
of Livingston Island (Figure 1). A total of 30 experiments on TS measurement and net calibration were carried ... out during the survey. Information on 34 trawling operations including 30 co-operative experiments ... The number of aggregations per tow were: one (30 instances); two (one instance); three (two instances ... with a mean of 7.17 g/m3 (N=30, SO=8.84 g/m3). The net density ranged from 4.49 to 73.33 g/m3 with a mean ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 339–345 : Author(s): Endo, Y. and Y. Shimadzu
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Age estimation and maturity of the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea
principally of aragonite, a form of calcium carbonate. The accretion of aragonite to the otolith surface ... represents a single year’s growth in the otolith. For each preparation method, the number of fully- formed ... . Differentiating between true, fully-formed translu- cent zones and false growth checks was more dif- ficult ... growth by sex only) von Bertalanffy growth models to the combined 2002 and 2004 dataset. (a) 30 40 50 ... and t 0 –0.159 for males and L ∞ 92.03, K 0.055 and t 0 0.159 for females. Revised estimates of the ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 291–303 : Author(s): Marriott, P.M., M.J. Manning and P.L. Horn
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The Patagonian toothfish (Dissostichus eleginoides) fishery in the Kerguelen Islands (Indian Ocean sector of the Southern Ocean)
‘Kerpêche’ for trawlers (split- years – 1 July to 30 June – 1979/80 to 2000/01) and in Excel tables ... method. Fish under 30 cm in total length are never caught because the hooks used are too big. Lord ... (Figure 10). The data series shows that the average depth of the longline has increased since 1998 ... ratio (equivalent to mean weight of fish) to be analysed. Over the whole of the time series ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 1–25 : Author(s): Lord, C., G. Duhamel and P. Pruvost
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An assessment of the exploratory fishery for Dissostichus spp. on BANZARE Bank (CCAMLR Division 58.4.3b) based on fine-scale catch and effort data
conservation measures limiting entry to vessels, avoiding by-catch by having vessels move when by-catch ... of Hilborn and Walters (1992), in its simplest form the Leslie depletion estimator (Leslie and Davis, 1939 ... ) makes use of the catch equation and a basic population model to construct a linear model of the form ... ) - - - - 30 0 - - - - - 30 0 C ha nn ic ht hy id ae ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 55–78 : Author(s): McKinlay, J.P., D.C. Welsford, A.J. Constable and G.B. Nowara
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Distribution characteristics of krill aggregations in the fishing ground off Coronation Island in the 1989/90 season
period. From November to February scattered forms of krill tended to combine into larger aggregations ... Island area over the observation period. From November to February scattered forms of krill tended ... " with clearly defined daily vertical migration. At night-time (from 0 to 2:30) krill formed a sub-surface ... forms of krill tended to combine into larger aggregations. Wind force had no direct or indirect ... ,ltapTHbIM pa3HOr JIy6HHHblM TpaJIOM C ropH30HTaJIbHblM pacKpblTHeM Me>K,lty KPblJIbSIMH B 33 M. 3a nepHo ... TeMnepaTypbl K KOHIJ,y ce30Ha cnoc06CTBOBaJIO pa3BHTHIO cpHTOnJIaHKTOHa H, KaK pe3YJIbTaT 3Toro, nOBblweHHIO ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 49–73 : Author(s): Kasatkina, S.M. and V.I. Latogursky
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Seabird mortality in the Patagonian toothfish longline fishery around Crozet and Kerguelen Islands, 2001–2003
. 54 Introduction Seabirds form an integral part of marine eco- systems. They depend entirely ... -service’ form – bait and offal discarded at sea – attracts many seabirds to Резюме В ходе законного ... white-chinned petrels, 13 giant petrels, 792 grey petrels, 9 grey- headed albatrosses and 30 black ... the variability in mortality (30–40%). General trends can nevertheless be highlighted for the two main species ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 53–80 : Author(s): Delord, K., N. Gasco, H. Weimerskirch, C. Barbraud and T. Micol
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Small scale krill surveys: simulations based on observed euphausiid distributions
arperaU;Hl1 3B
30BaHO B u;eJI5IX MO,l{eJIHpOBaHH5I ... opraHH30BaHHbIX pa3pe30B, npOXO,l{5III\HX lIepe3 TpH pacnpe,l{eJIeHH5I, Ka:>K,l{Oe H3 CCAMLR Secretariat, 25 ... .I H3MeHeHHH B Cpe.l1HeM Ha 40%, nOTpe6yeTc5.I OKOJIO 100 pa3pe30B, eCJIH 3HaIIeHH5.I CV oKa)l{YTc5.I TaKHMH ... under favourable conditions, when the cv is close to 0.3, prey surveys may take 30 or more days ... Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 245–256 : Author(s): Agnew, D.J. and S. Nicol
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Beyond MSY: a consideration of definitions of management objectives
of fishing on the natural rate of increase can be derived from the earlier equations in the form ... a strong year-class recruits, even when it is being heavily exploited. In the simplest form ... general form and hence of the form of the relation between stock and net recruitment can be obtained ... % (for salmon) and 25% (for cod) of the largest stock in the data series, the MNR for plaice being ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 299-322 : Author(s): Gulland, J.A.
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CCAMLR ecosystem monitoring and management: future work
. There was no clear process for assessing such evidence during the formative years of CCAMLR. Decisions were made ... ). The main issue to be taken into account when designing a time series of sampling events is the magnitude ... scale during the early stages of the fi shery and to 0 1 2 3 0 1 2 3 D en si ty 0 10 20 30 ... -wide interannual variation in krill density (solid line); (b) a consequent time series of density ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 233–253 : Author(s): Constable, A.J