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Estimating optimal observer coverage in the Antarctic krill fishery
on board for about 30% of that season. They have achieved a rate of krill sampling equivalent to 18 ... (% ) T ot al h au ls w it h kr ill sa m pl in g (% ) A ca m ar 20 02 30 7 ... 05 46 3 22 4 13 7 61 56 30 41 12 Fe ol en t 20 05 43 1 43 6 32 6 ... Estimating optimal obsErvEr covEragE in thE antarctic krill fishEry D.J. Agnew1, P. Grove2, T. Peatman1 ... been present on board for about 30% of that season. They have achieved a rate of krill sampling ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 139–154 : Автор(ы): Agnew, D.J., P. Grove, T. Peatman, R. Burn and C.T.T. Edwards
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Food and feeding of the mackerel icefish (Champsocephalus gunnari) around South Georgia in January/February 1991
the hyperiid T. gaudichaudii, krill and mysids form their staple food. A comparison with earlier ... Bundesrepublik Deutschland. Arch. Fisch. Wiss. 30 (Beih.l): 40-61. 19 1:5 41° w 39° 37" 35° .:.::I· ~t ... ubiquitous, albeit much smaller T. gaudichaudii which has a much lower caloric value than krill. In these ... T. gaudichaudii (62.5%), E. superba (22.1 %) and mysids (predominantly A. maxima) (21.3%). Although ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 15–23 : Автор(ы): Kock, K.-H., I. Everson, S. Campbell, G. Parkes, Z. Cielniaszek and J. Szlakowski
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A preliminary assessment of age and growth of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica
derived for both sexes combined are: L ∞ 22.1 cm SL; K 0.167 y –1; t 0 –0.4 years. Parameter estimates ... consecutive modes at 8–9, 30–40 and 50–70 mm in December, and assumed they rep- resented the 0+, 1+ and 2 ... unweighted lengthatage data were fitted to the von Bertalanffy growth model: Lt = L∞ (1 – exp(–K*(t–t0 ... ))) where Lt is the expected length at age t years, L∞ is the asymptotic maximum length, K is the von ... To m o, 1 98 91 ); C os m on au t S ea , M aw so n Se a, P ry dz B ay (G er as im ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 75–86 : Автор(ы): Sutton, C.P. and P.L. Horn
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Precautionary spatial protection to facilitate the scientific study of habitats and communities under ice shelves in the context of recent, rapid, regional climate change
platforms of land ice that form where glaciers or ice sheets flow towards a coastline and onwards over ... that form fol- lowing ice-shelf collapse will be susceptible to colonisation by species from areas ... to better inform CCAMLR management decisions (CCAMLR, 2009b; www.ccamlr.org/ resolution-30/xxviii ... ); and Subarea 88.3 has 30 individual areas, with a total area under ice shelves of 88 538 km2 (equiva ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 139–151 : Автор(ы): Trathan, P.N., S.M. Grant, V. Siegel and K.-H. Kock
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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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Distribution characteristics of krill aggregations in the fishing ground off Coronation Island in the 1989/90 season
\~. P . • . • . • 20 30 • • t • , "' ... I' 50 t I· ... ··"· ", • . 0 . 01 . . I ... QI = catch in haul i; T tp.1 = duration of haul i ; n = number of hauls over the study period ... -east (500 1O'S to 59° 30'S and 43°30'W to 44°W) and south-west (Figure 1). In the daytime, krill was ... dawn (2:30 to 3:00 a.m.) and after five a.m. these swarms migrated downwards (Figure 2b). Mean catch ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 49–73 : Автор(ы): Kasatkina, S.M. and V.I. Latogursky
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Species identification and age estimation for the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea
in the Ross Sea (CCAMLR Subarea 88.1). The zones are assumed to form annually as this ageing ... Ross Sea (CCAMLR Subarea 88.1). The zones are assumed to form annually as this ageing methodology has ... . holotrachys Species identifi cation and age estimation for M. whitsoni 44 Marriott et al. 0 10 20 30 ... 40 50 60 70 80 90 100 0 5 10 15 20 25 30 35 40 45 50 55 60 Age (years) To ta l l en gt h ... linear regressions. Males y = 0.3287x + 0.511 R2 = 0.865 n = 552 0 10 20 30 40 0 20 40 60 80 100 ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 37–51 : Автор(ы): Marriott, P., P.L. Horn and P. McMillan
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Modelling catch and effort data using generalised linear models, the Tweedie distribution, random vessel effects and random stratum-by-year effects
usual GLM form which must be a function only of μ (i.e. including the simplest case of V(μ) = μ0 = 1 ... quasi- deviance, D(y,μ), where D y y t V t dt yi j ij ij, , μ μ( ) = − −( )( )∫∑2 , corresponding ... optimal value for θ in terms of fi t to the catch data can be obtained using a profi le (quasi-) deviance ... ) (Robinson, 1991) of the random effects, given by û, can be obtained from the fi t of the GLMM. The ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 59–80 : Автор(ы): Candy, S.G
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Analysis of the diet of Champsocephalus gunnari at South Georgia in late summer from 1994 to 1997, Dr Eduardo L. Holmberg surveys
Programme de contr6le de l'ecosysteme de la CCAMLR (CEMP). C O C T ~ B pasmoaa JIen~Hofi pb16b1 ... BCTpeYaeMOCTA (Fyo) M K O ~ + @ I I ~ H ~ H T ~ paqnoHa nmaHEx (Q%). B pafio~ax IOm~ofi r e o p r ~ n n cKan ... BaXHOCTA B PaUHOHe C. gunnari 3TI.1 BkiAbl IIOMeHRnACb MeCTaMA. no~pe6JIe~Me ApyrAX O ~ % ~ K T O B ... ~ ~ ~ K T O B IIMTaHAR B PaqIlOHe C. gunnari, HM ~ 0 n e f i XenygKOB C nnue316e3 IIAUM. YeTblpe ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 103–123 : Автор(ы): Barrera-Oro, E., R. Casaux and E. Marschoff
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A statistical method for estimating the level of IUU fishing: application to CCAMLR Subarea 48.3
October to 30 September, thus including one summer and one winter period. The estimated mean toothfish ... analysed: 1998/99, 1999/2000 and 2000/01. Each year fully covered the period 1 October to 30 September ... 30 septembre et comprend donc une période d’été et une période d’hiver. Les captures moyennes de ... охватывает период с 1 октября по 30 сентября, включая, таким образом, один летний и один зимний период ... . Cada año cubrió el período del 1º de octubre al 30 de septiembre , incluyendo por lo tanto un verano y ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 119–141 : Автор(ы): Agnew, D.J. and G.P. Kirkwood
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