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Mesopelagic fish of the Southern Ocean - summary results of recent Soviet studies
4 to 5 years. Age of maturity is 2 to 3 years (Shust and Kochkin, 1985). Length at maturity L50=8.6 ... ) and during the day (14.00 to 15.00) (Konstantinova, 1988, Scotia Sea). Daily food intake is about 4 ... to 3 mm and 0.7 to 1.0 g (P=0.01). Maximum reported length was 10.5. Maximum age is 4 to 5 years ... ·25 (t+0.68)]. The mean natural mortality of 0.86 was calculated from one year's data on 2- to 4 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 433–457 : Autor(es): Sabourenkov, E.N.
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Fishery Report: Dissostichus eleginoides Prince Edward Islands South African EEZ (Subareas 58.6 and 58.7)
4. Stock assessment........................................................................ 4 5 ... . By-catch of fish and invertebrates ..................................................... 4 5.1 ... Estimation of by-catch removals.................................................. 4 5.2 Assessments of ... impact on affected populations ................................. 4 5.3 Mitigation measures ...
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Analyses of acoustic line-transect data from the waters around South Georgia: estimation of krill (Euphausia superba Dana) – biomass
sample unit length is: (4) The estimated mean density for the whole region is then: (5) where Ai ... side of the shelf region (Figure 4), and taking a section as the basic sampling unit. This is not ... = 9.5%). Statistics for the 18 transect breakdown (Figure 4) and the six strata breakdown (Figure 5 ... ) are given in Tables 4 and 5 respectively. These estimates are based on the assumption of random ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 225–243 : Autor(es): Murphy, E., I. Everson and A. Murray
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Fishery Report 2014: Dissostichus eleginoides South Georgia (Subarea 48.3)
Management Areas (A, B and C) (Figure 1) defined in Conservation Measure (CM) 41-02/A. 4. In 1998, the ... 2 tonnes in 2007, all catches have been from within Management Areas B and C. 4 Table 1 ... 1 775 1992 3 500 3 809 3 066 1993 3 350 3 020 4 019 1994 1 300 658 4 780 1995 2 800 3 371 1 674 ... 1996 4 000 3 602 0 1997 5 000 3 812 0 1998 3 300 3 201 146 1999 3 500 3 627 667 2000 5 310 4 904 1 ...
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Assessments of the stocks of Notothenia rossii marmorata and Champsocephalus gunnari in the South Georgia area
the start of fishing. - 4 - 1.2 Age-specific Natural Mortality and Catchability Rates Figure ... in Table 4, trajectories of recruited stock biomass are shown in Figures Sa-b. In this case, the ... . The age at recruitment is 3-4 years, hence up to two consecutive years of heavy fishing can occur ... Living Resources. 1985. Report of the Fourth Meeting of the Scientific Committee, Annex 4 Report of ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 1-21 : Autor(es): Cooke, J.G.
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The CCAMLR-2000 Krill Synoptic Survey: a description of the rationale and design
~ K ~ ~ ~ H O M ~ C U J T ~ ~ H ~ I X 3 0 H nnaH CbeMKH npeAyCMaTpHBan 4 CpefiHeMaCUI~a6~blX ?OHbI ... ~ ~ b l e MapmpyrbI Kamnoro a3 4 ytracTuosanmrix B cbeMKe cyaon. T a ~ m e IIpHB0ARTCI-I AeTanM ... . Details of the cruise tracks of each participating vessel are shown in Figures 1,2,3 and 4. METHOD OF ... Sampling Zone (L) (km) 13 62.50 62.50 10 31.25 31.25 4 31.25 31.25 4 31.25 31.25 9 62.50 62.50 8 ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 1–23 : Autor(es): Trathan, P.N., J.L. Watkins, A.W.A. Murray, A.S. Brierley, I. Everson, C. Goss, J. Priddle, K. Reid, P. Ward, R. Hewitt, D. Demer, M. Naganobu, S. Kawaguchi, V. Sushin, S.M. Kasatkina, S. Hedley, S. Kim and T. Pauly
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Fishery Report 2013: Dissostichus eleginoides Heard Island (Division 58.5.2)
tonnes but has since been reduced and since 2012 has remained at 2 730 tonnes. 4. In the 2013 season ... not more than 3–4% of the estimated stock size. In the case of the fisheries in Division 58.5.2, the ... of this report. 4 Figure 2: Annual length-frequency distributions of Dissostichus ... 120 0 3 3 - 1999 - 0 1 1 - 0 2 2 - 2000 - 0 4 4 - 0 6 6 - 2001 - 0 1 1 50 0 5 5 - 2002 50 0 4 4 50 ...
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Fishery Report: Closed fishery for Dissostichus spp. (TOT) in Divisions 58.4.4a and 58.4.4b
and areas ......................................................................... 4 3. Parameter ... estimation ................................................................... 4 3.1 Observations ... ........................................................................ 4 3.2 Fixed parameter values ............................................................ 5 4 ... . eleginoides was taken in SSRUs A and D (Table 1b). 4. Since 2008 a Japanese-flagged longliner has ...
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Fishery Report: Champsocephalus gunnari Heard Island (Division 58.5.2)
structure ................................................................ 4 Other parameters ... ......................................................................... 6 Proportion of biomass-at-age...................................................... 7 4 ... surveys. 4. With respect to the catch-weighted length frequencies in Figure 1, the Working Group ... ; WAMI-01/4); (iv) abundance of fish cannot be inferred from these plots; (v) the cohorts ...
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A post-processing method to remove interference noise from acoustic data collected from Antarctic krill fishing vessels
et er (m ) Lo g 1 0 a re a (m 2 ) R aw –5 9. 0/ –5 4. 8/ –5 2. 6 27 .5 /5 2. 6 ... / 10 5. 8 16 4/ 21 7/ 25 3 2. 22 /2 .6 7/ 3. 23 3. 03 /3 .5 3/ 4. 15 3. 30 /3 .8 8 ... / 4. 88 Pr oc es se d –5 8. 9/ –5 6. 3/ –5 3. 8 23 .9 /3 7. 8/ 10 3. 5 16 4/ 21 7 ... / 25 3 2. 22 /2 .6 7/ 3. 23 2. 96 /3 .4 0/ 4. 07 3. 29 /3 .8 7/ 4. 87 p- va lu e ...
Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 17–30 : Autor(es): Wang, X., J. Zhang and X. Zhao