Search results
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Beyond MSY: a consideration of definitions of management objectives
is greater that S t' the op spawning stock corresponding to this maximum, the objective of GNAI will ... be met by taking an amount R-S t' so that the escapement (i.e. recruitment op less catch) will ... maintained at S t' then catches op will vary. It can be argued that they are not being sustained, and that ... , Sissenwine and Shepherd 1987). This is based on a plot of observed values of adult stock, S, and subsequent ...
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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Interactions of Patagonian toothfish fisheries with killer and sperm whales in the Crozet Islands Exclusive Economic Zone: an assessment of depredation levels and insights on possible mitigation strategies
51.5 52.5 53.5 La tit ud e (S ou th ) –44 –44.5 –45 –45.5 –46 ... –46.5 –47 –47.5 (a) 50 km La tit ud e (S ou th ) –44 –44.5 –45 –45.5 –46 –46.5 –47 ... gi no id es b io m as s (to nn es ) Vessels Killer whales Killer and sperm whales Figure 5 ... to sustain a swimming speed of 7–8 m s–1 (Guinet et al., 2007). Therefore, assuming the limit of ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 179–195 : Author(s): Tixier, P., N. Gasco, G. Duhamel, M. Viviant, M. Authier and C. Guinet
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Book review: Fish and Fish Resources of the Antarctic
~s and plunderfishes (Artedidraconidae). Many species of bottom-dwelling Antarctic fish should be ... , Joinville and DfUrville Islands. Indicator species - Chaenodraco wilsoni, Tremntomus eulepidotz~s and ... mesopelagic waters of the high seas up to 56"s. The author gives a detailed description of each of the IZs ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 165–168 : Author(s): Shust, K.V
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Determination of Antarctic krill acoustic back-scattering cross-section
hydroacoustic instrument. where p x ~ G(S,p) The echo signal from an individual object is equal to ... u2 =p2x2.~2 .G4 (S;p) ~Go r4 • lOo.2S. r acoustic pressure on antenna axis reduced to 1 m distance ... r = distance to the object, m S space attenuation of sound, dB/m (1) Go acoustic cross section ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 141-152 : Author(s): Protaschuk, V.A. and T.A. Lukashova
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A von Bertalanffy growth model for toothfish at Heard Island fitted to length-at-age data and compared to observed growth from mark–recapture studies
the season(s) and not weighted totals using statistical weights of the ratio of the total weight of ... ’ function in S-plus (Insightful, 2001) and the ‘fi tnonlinear’ directive in GenStat (Lawes Agricultural ... the above approach was not pursued further here. More detail can be made available on request (S ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 43–66 : Author(s): Candy, S.G., A.J. Constable, T. Lamb and R. Williams
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Estimation of effective sample size for catch-at-age and catch-at-length data using simulated data from the Dirichlet-multinomial distribution
error, ˆ100 /n n n , and the relative mean square error (RMSE) given by 2 2 11 1 ˆ / S SS r r rSr ... r n n n n where S is the total sample size of estimates (i.e. 2000 in the simulation studies ... as a ‘factor’ so that Jar = 1 if r = a and zero otherwise, and the β’s are parameters to be ... selectivity was to be imposed, then P’(a) was multiplied by S(a) to give P”(a) where S(a) was determined ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 115–138 : Author(s): Candy, S.G
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Otolith and body size relationships in the mackerel icefish (Champsocephalus gunnari)
. . . X . l . 1 1 1 . 1 1 overestimate the biomass of fish consumed when compared to s t andard ... 49.2 Everson, I., G. Parkes, K.-H. Kock, S. Campbell, Z. Cielniaszek and J. Szlakowski. 1991. Fish ... fishes. S. Afu. Antarct. Res., 17 (l): 1-87. Jobling, M. and A. Breiby. 1986. The use and abuse of ... . 1992. Antarct ic Fish and Fisheries. Cambridge University Press, Cambridge: 359 pp. Kock, K.-H., S ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 117–123 : Author(s): Everson, I., B. Bendall and A. Murray
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Length-at-age in juvenile Patagonian toothfish (Dissostichus eleginoides)
. Ashford , C. Jones and S. Bobko Center for Quantitative Fisheries Ecology Old Dominion University ... (Dissostichus eleginoides). Ph.D. Disser- tation, Old Dominion University, USA. Ashford, J.R. and S ... sections for viewing by scanning electron microscope. ICES J. Mar. Sci., 50: 227–229. Ashford, J.R., S ... . Wischniowski, C.M. Jones, S. Bobko and I. Everson. 2001. A comparison between otoliths and scales for use ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 1–10 : Author(s): Ashford, J., C. Jones, S. Bobko and I. Everson
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Acoustic data analysis and models of krill spatial distribution
krill concentration fluctuations is given by as' a2s' a - = 0 - - AS" - {Joo n. (x-x')S'(x' t)dx ... '} -ex s' + l' at ax2 ax _00 ~ , ( 1 ) where s' (x,t): krill biomass fluctuations in space (x) and time ... growth rate at stable equilibrium level S, or alternatively could be interpreted as a predation rate, 1 ... ). Meeresforsch 28: 228-243. 318 w ...... \0 S 620 630 Figure 1: .4 am ~~ (local time), ~ D ...
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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Distribution of mackerel icefish (Champsocephalus gunnari) (Channichthyidae) around South Georgia at various stages of its life cycle
ep ha lu s gu nn ar i le ss t ha n 15 c m i n le ng th o n th e sh el f of ... S ou th G eo rg ia ( ba se d o n pe la gi c su rv ey re su lt s) . V es se l ... N am e, C ru is e D at es Pa ra m et er s E as t N or th So ut h W es ... ab le 3 : M at ur it y st ag es o f C ha m ps oc ep ha lu s gu nn ar i o n th e ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 49–69 : Author(s): Frolkina, Zh.A