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A generalised model for evaluating yield and the long-term status of fish stocks under conditions of uncertainty
, and 12 , are specified from their midpoint and range, that is: where l, and l, are the midpoint ... equation 12. This age structure is projected for a number of years, equivalent to at least the number of ... accordance with equation 12, but with the R term replaced by a randomly drawn recruitment. The resulting ... mortality. the program for approximating So The first is that arising from the use of equation 12, as ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 31–54 : Autor(es): Constable, A. and W.K. de la Mare
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Bacteria and detritus: Trophic modelling of the Ross Sea
of 2.31 mmol m-2 d-1. y = 61.267x-0.5055 R2 = 0.6593 0 2 4 6 8 10 12 0 1000 2000 3000 ... 78°S in November 1998 were made by Arrigo et al. (2003: Fig. 12). Values from Arrigo et al. (2003 ... starting point for the model. 11 0 2 4 6 8 10 12 Se a- ic e PO C , D O C ( gC m ... -3 ) J A S O N D J F M A M J a 0 2 4 6 8 10 12 14 16 Se a ...
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Changes in biomass of eight species of finfish around the South Orkney Islands (Subarea 48.2) from three bottom trawl surveys
) 3 949 (2 004-11 510) 5 175 (2 997-12 203) 12 (3-40) 386 (179-1 599) 4 586 (1 890-20 846) 4 ... -58 918) 23 621 (12 274-61 450) 928 (201-15 606) 4 014 (2 423-8 155) 11 089 (6 707-21 490) 16 ... (2 304-49 329) 10 173 (5 960-22 700) 22 479 (12 840-50 640) 38 900 (26 091-82 780) 875 (160-22 ... 431 (6 628-22 220) 153 (73-623) 399 (282-640) 12 881 (7 373-29 114) 13 434 (7 921-28 796) 167 ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 53–74 : Autor(es): Jones, C.D., K.-H. Kock and E. Balguerías
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Line weights of constant mass (and sink rates) for Spanish system Patagonian toothfish longline vessels
was reached in 17 s). The fixed effects in the LMM were the 12 combina- tions of the three factors ... fishing method, initial sink 0 2 4 6 8 10 12 14 16 180 2 4 6 8 10 12 14 16 18 0 2 4 6 8 10 12 14 ... 16 18 20 0 2 4 6 8 10 12 14 16 18 20 4 kg 6 kg 8 kg D ep th (m ) D ep th ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 93–106 : Autor(es): Robertson, G., C.A. Moreno, E. Gutiérrez, S.G. Candy, E.F. Melvin and J.P. Seco Pon
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Effects of recruitment variability and natural mortality on generalised yield model projections and the CCAMLR decision rules for Antarctic krill
. CCAMLR Science, 1: 81–106. CCAMLR. 2012. Schedule of Conservation Measures in Force, 2011/12. CCAMLR ... study. 2002 EI Jan (n = 40) 2002 SA Jan (n = 10) 2002 SA Feb (n = 12) 2002 WA Jan (n = 12) 2002 EI ... . Standardized Recruitment Fr eq ue nc y 0 5 10 15 20 0 20 00 0 40 00 0 60 00 0 80 00 0 10 00 00 12 ... eq ue nc y 0 5 10 15 20 0 20 00 0 40 00 0 60 00 0 80 00 0 10 00 00 12 00 00 log ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 81–96 : Autor(es): Kinzey, D., G. Watters and C.S. Reiss
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Krill biomass in Area 48 and Area 58: recalculations of FIBEX data
to 12 March, 1981. 2.2 Data Analyses Carried Out Every attempt was made to ensure that the ... Transects 12-21: Area = 29 100 km2) and to the "East Bransfield" area (Itzumi Transects 17-24: Area = 8 600 ... survey was 16 January 1981 and the end was 12 March 1981 (excluding Umitaka Maru and Melville) a period ... 7.5 Prof Siedlecki (Bransfield) 12-21 520.4 29.1 4.7 5.2 21.9 4.24 136.0 150.5 638.2 42.0 37.7 37.7 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 157–181 : Autor(es): Trathan, P.N., D.J. Agnew, D.G.M. Miller, J.L. Watkins, I. Everson, M.R. Thorley, E. Murphy, A.W.A. Murray and C. Goss
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Fishery Report: Exploratory fishery for Dissostichus spp. in Division 58.4.3b
12 14 171 185 * Includes 50 tonnes for research fishing. ** Limit set for research fishing only ... research hauls reported in fine-scale data are summarised in Table 2. 12. Vessels are also required to ... tagged fish with the overall size frequency of fish caught (main report, Table 12). The Working Group ... markers. CCAMLR Science, 12: 43–52. ...
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Krill Fishery Report 2017
, 12 vessels fished in Subareas 48.1, 48.2 and 48.3 and the total catch of krill reported was 259 979 ... Scientific observer data reporting 12. The implementation of the CCAMLR Scheme of International Scientific ... of the 12 Convention. To do this, the population of krill is projected forward in time using ... 36884 188 12 93185 2009 125826 19906 706 1617 3325 3055 3866 1494 0 0 877 1653 89325 2010 ...
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Seabird interactions with trawl and longline fisheries for Dissostichus eleginoides and Champsocephalus gunnari
same period with catches taken by a mixture of longlining (12%) and trawling (88%). A trawl fishery ... 12 February 1995 with only two short breaks of less than one day each. The vessel made an average ... three to four hours duration on the bottom and covered 12 to 15 miles, essentially along the same ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 93–99 : Autor(es): Williams, R. and D. Capdeville
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A simulation study of the method of deriving natural mortality rate using data for Champsocephalus gunnari in Subarea 48.3
Sa,y FA 1-e -Za,y) / Za,y 2' (12) (iv) Correlation between fishing effort and fishing mortality ... equation (12) with the use of the present value of Cy; (c) fishing effort Ey is deduced from (13); (d ... : 382 p. SHEPHERD, LG. 1982. Two measures of overall fishing mortality. ICES CM 1982IG:2, pp. 12 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 69–83 : Autor(es): Gasyukov, P.S. and R.S. Dorovskikh