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Food consumption by predators in a CCAMLR integrated study region
that the relevant data can be manipulated into the correct form, the use of the program is not ... the form E =aW~ where W 1 is the body weight on day i, or as a constant. The source of equation or ... v m S-l and proportion of the trip spent not travelling is 't then the maximum range is 86.4 v(1 ... -'t)/24> where again 4> is the feeding frequency: the factor 86.4 converts travel speed from m S-l to ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 489–519 : Автор(ы): Croxall, J.P., C. Ricketts and A.G. Wood
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Results of fish stock assessment survey, South Georgia, December 1987 - January 1988
2 c e n t 1 0 8 6 4 2 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 Length Class (cm ... ) 40 35 P 30 e r 25 c 20 e n 1 5 t 1 0 5 0 Figure 7: 0 0 Dissostichus ... for any subsampling on deck or in the laboratory, and was standardized to 30 minute tows. 21 3 ... form a smaller mode at about 32 cm in 1987/88. Fifty percent of the fish in the 22 - 25 cm size range ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 19-52 : Автор(ы): McKenna, Jr., J.E. and S.B. Saila
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Composition and characteristics of ichthyofauna in pelagic waters of South Georgia (Subarea 48.3)
Georgia 30 30 - 25 20 % Gij 25 n7kaL Gij 28 5 - 0 0 0 0 0 0 0 0 0 0 c ) o ~ T - ~ c ) o ~ T ... ~eCTBeHHO MMKTO@AA~MII, O ~ M T ~ I O ~ I I M P I Han rJIy6HHaMH CBbIIIIe 250-300 M 11 pb16aMH nPHAOHHOr0 ... IIpeACTaBHTenH 42 BHAOB pb16 113 16 C ~ M ~ ~ C T B . O C H O B ~ YnOBOB no qPiCneHHOCTPI cocTasnxnH C ... , South Georgia, CCAMLR INTRODUCTION From 1984 to 1990 scientists from the Atlantic Research In s t ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 125–164 : Автор(ы): Frolkina, G.A., M.P. Konstantinova and I.A Trunov
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Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald Islands using catch-at-age and aged mark-recapture data from the main trawl ground
S.G. Candy, D.C. Welsford, T. Lamb, J.J. Verdouw and J.J. Hutchins Australian Antarctic Division ... estimation, age–length keys, CCAMLR mailto:steve.candy@aad.gov.au Candy et al. 30 but excluding length ... the functional form of selectivity was correctly specified in the BODE model, both models gave close ... , when a minor misspecification of the functional form of selectivity was fitted, the CCODE model gave ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 29–45 : Автор(ы): Candy, S.G., D.C. Welsford, T. Lamb, J.J. Verdouw and J.J. Hutchins
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Consideration of major issues in ecosystem monitoring and management
30–150 Calendar dateP ot en tia l r an ge fr om c ol on y Calendar date Foraging trip ... 10000 15000 0 10 20 30 40 50 60 70 80 90 100 Year Po pu la tio n si ze Recruitment fails twice ... at random each decade Recruitment normal 50% Survivorship 0 1000 2000 3000 4000 0 10 20 30 ... the number at time t and Z is the coeffi cient of total mortality. The breeding population (Pb ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 213–232 : Автор(ы): Everson, I
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Chilean krill fishery: analysis of the 1991 season
. Accordingly, the Chilean National Fisheries Service (CNFS) produced a form to collect haul-by-haul ... tonne min- t , in area (3) all hauls exceeded that level (ANOVA). We conducted a correlation analysis ... . and T. ICHII. 1989. CPUEs, body length and greenness of Antarctic kriU during 1987/88 season in the ... 48-2 § 4000'----------A-----,----,----------------- o \ C \ , * ..c 3000 --'-""----t ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 273–287 : Автор(ы): Marín, V.H., A. Mujica and P. Eberhard
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Preliminary results of a bottom trawl survey around Elephant Island in October and December 1987
varied from 65-458 m. Standard trawling time was 30 minutes. The location of fishing stations is set out ... females had developing ovaries. Males were almost exclusively sexually mature. About 30% of them had ... 1986, when the species was found to form prespawning aggregations. This may have influenced the amount ... Notothenia rossii marmorata Fischer 1885 in the west Antarctic waters. Arch.FischWiss. 30(1): 39-66. KOCK ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 185-200 : Автор(ы): Kock, K.-H.
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A potential feedback approach to ecosystem-based management: Model Predictive Control of the Antarctic krill fishery
) provides output in the form of measurable state variables such as biomass and, trivially, catch. An ... simulations. Parameter Value MPC prediction horizon N = 20 Input bounds Umin = [400 400]T Umax = [1 000 ... 1 000]T AUmax = [200 200]T State bounds Xmin = [1 300 1 300 10 10]T Xmax = [104 104 100 100 ... ]T Constraint probability pX = 0.9 Mean steady state harvested species biomass ( ) ( )1, 2,, 5 ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 119–137 : Автор(ы): Hill, S.L. and M. Cannon
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Estimating krill recruitment and its variability
from krill populations. The proportion of recruits, also known as the gross recruitment rate, R(t ... ), is the ratio of the numbers in age class t to the numbers in that age class and above, that is ... for calculating R(t). If we assume that the length distributions have normal distributions with a ... each mixture component. The estimated value of R(t) for the survey is given by: Only D, and the sum ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 55–69 : Автор(ы): de la Mare, W.K
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Depth distribution and spawning pattern of Dissostichus eleginoides at South Georgia
(Dissostichus eleginoides) Ha ocHosaHm AaHHbIx no npuMepHo 7000 oco6efi, O T O ~ P ~ H H ~ I X ~ a 6 n m n a ... OCHOBHOM~ nepr?oAy HepeCTa B KOHQe MIOJIS I /~B~~CT~ MOXeT IIPOMCXOAHTb Me~bLIIllg IIO M ~ c L I I T ... OTHepeCTHBUlMXCZ oco6eB. T a ~ o e KOHueHTpHpoBaHHoe PaCIIpeAeneHHe KPYMHbIX IIOCneHepeCTOBbIX oco6eit MOXeT ... , spawning, South Georgia, Shag Rocks, depth distribution, CCAMLR INTRODUCTION The b io logy of Pa t ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 19–36 : Автор(ы): Agnew, D.J., L. Heaps, C. Jones, A. Watson, K. Berkieta and J. Pearce
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