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Estimation of natural mortality using catch-at-age and aged mark-recapture data: a multi-cohort simulation study comparing estimation for a model based on the Baranov equations versus a new mortality equation.
+ +- = - - -t a t a t a a tN N N S F M . (5) Candy 4 Equations (4) and (5) are denoted the BODE model ... mortality equa- tion as seen by comparing equations (4) and (5) with equation (8). To generalise the above ... , notation including pre-fishing 5 Estimation of M for D. eleginoides using BODE and CCODE models and ... and σU were set to 3, 5, 2 and 8 respectively. For sigmoidally shaped (see below) selectivity, ¢aS ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 1–27 : Автор(ы): Candy, S.G.
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Commercial krill fisheries in the Antarctic, 1973 to 1988
Statistical Area 48, before falling to consistently lower levels (±20 000 tonnes) thereafter (Figure 5 ... occurred (5 932 tonnes) in Statistical Area 58 two seasons later (1985/86). Plots of cumulative catch by ... Commerce. Washington D.C. (TT 67-32683): 5-17. BUTTERWORTH, D.S. 1986. Antarctic ecosystem management ... , S.A. 1984. The development of Balaenopterid whaling in the Antarctic. Cetus 5(2): 6-10. MIZROCH ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 229–281 : Автор(ы): Miller, D.G.M.
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Catch per unit effort and proportional recruitment indices from Japanese krill fishery data in Subarea 48.1
. Kawaguchi, T. Ichii and M. Naganobu National Research Institute of Far Seas Fisheries 5-7-1 Orido ... 12.2 1981/82 1 3264 615 13 334 0.30 1989/90 5 2538-3608 290-707 13, 15, 18, 20 1815 ... 3910-4991 560 15 473 1.22 1982/83 1 3264 615 13, 15 22 0.01 1990/91 5 2903-3910 542 ... 1293 4.71 1983/84 7 2749-3608 360-550 304 0.30 1991/92 5 3058-4991 500-707 15 4933 ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 47–63 : Автор(ы): Kawaguchi, S., T. Ichii and M. Naganobu
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Can toothfish catches be used to predict the presence of vulnerable benthic invertebrate taxa?
91 124 Segments with AXT 10 2 12 12 36 Segments with CSS 2 5 8 173 188 Segments with GGW 9 17 3 58 ... taxa: Pennatulacea (NTW) 1 3 0 21 25 Euryalida (OEQ) 5 7 1 11 24 Cidaroidea (CVD) 1 0 0 11 12 ... Anthoathecate (AZN) 0 1 0 10 11 Zoanthid (ZOT) 0 1 0 9 10 Alcyonacea (AJZ) 1 0 0 5 6 Crinoid (CWD) 0 1 0 4 5 ... re a 1 0. 68 8 0. 31 3 0. 87 5 0. 12 5 0. 95 3 0. 04 ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 87–96 : Автор(ы): Parker, S.J. and M.H. Smith
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Distribution, biomass and characteristics of the Euphausia superba fishery around South Georgia (Subarea 48.3)
possible de commencer it expliquer les causes de la variabilite dans la AtlantNIRO, 5 Dimitry Donskoy ... also where large concentrations of krill were detected. .Figures 5 to 7 give data on the system of ... decreased by six times (79 000 tonnes, see Table 2). Survey 5 (1 to 4 June 1983, RV Argus, Figure 2C) A ... of other surveys (1, 3 and 5), aggregations of krill 130 were also discovered a long way out to ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 123–147 : Автор(ы): Latogursky, V.I., R.R. Makarov and L.G. Maklygin
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Age, growth and mortality of Patagonian toothfish (Dissostichus eleginoides) caught off Kerguelen
were fi tted by sex, and the model Hw (equation 5), in which parameters were fi tted using the pooled ... data: 0: 1 i ij i K t t ij iH l L eΩ ∞ (4) ∞ 0: 1 ij K t t w ijH l L e (5) where lij is the ... trawler Kerguelen de Trémarec (Figure 2). Fish appeared to have recruited fully to the catch by age 5–6 ... 5 years and older. For the Kerguelen de Trémarec, the respective estimates were Z = 0.16 and Z ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 29–41 : Автор(ы): Ashford, J., G. Duhamel, C. Jones and S. Bobko
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Exploratory fishing for Dissostichus spp. in the Antarctic region (Subareas 48.1, 48.2 and 88.3)
aTnaHTHqeCKOM CeKTOpe AHT~PKTBKH ( 5 8 ° 0 3 ' ~ . ~ ~ . ) . K o ~ @ @ H ~ M ~ H T ~ I BblnOBa BMAOB ... - gravid, and 5 - post-spawning (Kock and Kellermann, 1991). For by-catch species, total catch weight of ... identification. Length-frequency distributions were determined by grouping individuals in 5 cm length classes ... 0.430 3.5 1 0.071 365.7 860 7.455 27.7 31 0.565 71.5 13 1.458 1.9 5 0.039 1 1 1 1769.9 ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 1–17 : Автор(ы): Arana, P.M. and R. Vega
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Age determination of Champsocephalus gunnari Lönnberg, 1905 (Channichthyidae) taken in the South Georgia area in 1990
(Channichthyidae). Bonp. HXTHOJIOrHH, T. 25, BbIn 5: 834-843. CAMPANA, S.E. and J.D. NEILSON. 1982. Daily growth ... gunnari and Notothenia rossii from South Georgia. Antarct. f., 23 (5): 142-143. RADTKE, RL. 1990. Age ... 33.6 32.8 29.4 32.7 28.2 5 35.1 37.7 37.1 36.7 37.3 37.5 31.8 6 36.9 43.2 39.2 39.1 40.9 41.6 35.1 7 ... , February 1990. Age in Years Variations in Overall Length (cm) Number of Specimens 1+ 2+ 3+ 4+ 5 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 285–293 : Автор(ы): Kochkin, P.N.
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Growth and natural mortality of Patagonian rockcod (Patagonotothen guntheri shagensis) from Shag Rocks shelf
of 2 to 5 years are most abundant. Sexual maturity is attained by fish at 11 to 13 cm length, 20 to ... ). 5. NATURAL MORTALITY The natural mortality rate was estimated using the following methods: (i ... determined from the data on age composition: T = 2 x 0.07 + 3 x 0.57+4 x 0.24+5 x 0.11 +6 x 0.0095 = 3.42 ... : Abundance of P.g. shagensis by age-groups in catches taken in the second half of 1978. Age-Groups 2 3 4 5 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 111–121 : Автор(ы): Shlibanov, V.I.
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Biological parameters for icefish (Chionobathyscus dewitti) in the Ross Sea, Antarctica
exp ( ) ; 0 1 exp j j t L L L L (5) where L1 and L2 = mean lengths at two reference ages τ1 ... were fitted to the data and parameter esti- mates for these are presented in Table 5. Both the AIC and ... - aging 1.53%. There is a very weak positive trend in GSI over time (Figure 5). This is supported by the ... ages ranging between 5 and 11 years. The greater age range observed in the current study is likely to ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 139–165 : Автор(ы): Sutton, C.P., M.J. Manning, D.W. Stevens and P.M. Marriott
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