Résultats de la recherche

1. Beyond MSY: a consideration of definitions of management objectives

   fishing on the natural rate of increase can be derived from the earlier equations in the form C = R ... exploited. In the simplest form of this situation, in which the stock-recruit relation is known, it is ... stock-recruit relation is not easy, some estimate of its general form and hence of the form of the ... largest stock in the data series, the MNR for plaice being indeterminate but certainly less than 30 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 299-322 : Auteur(s): Gulland, J.A.

2. Food consumption by predators in a CCAMLR integrated study region

   that the relevant data can be manipulated into the correct form, the use of the program is not ... the form E =aW~ where W 1 is the body weight on day i, or as a constant. The source of equation or ... 22-24 25-27 28-30 Content Blank Day number (must be 0001 on fIrst card) Percentage of diet ... . moult. Weight to energy relationships of the form E=a Wb can be used. If b=O then 'a' should be the ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 489–519 : Auteur(s): Croxall, J.P., C. Ricketts and A.G. Wood

3. Results of fish stock assessment survey, South Georgia, December 1987 - January 1988

   2 c e n t 1 0 8 6 4 2 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 Length Class (cm ... ) 40 35 P 30 e r 25 c 20 e n 1 5 t 1 0 5 0 Figure 7: 0 0 Dissostichus ... for any subsampling on deck or in the laboratory, and was standardized to 30 minute tows. 21 3 ... form a smaller mode at about 32 cm in 1987/88. Fifty percent of the fish in the 22 - 25 cm size range ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 19-52 : Auteur(s): McKenna, Jr., J.E. and S.B. Saila

4. Composition and characteristics of ichthyofauna in pelagic waters of South Georgia (Subarea 48.3)

   Georgia 30 30 - 25 20 % Gij 25 n7kaL Gij 28 5 - 0 0 0 0 0 0 0 0 0 0 c ) o ~ T - ~ c ) o ~ T ... fish of age group 1, which comprised 30-50% of catches, significant amounts of larger specimens of C ... of 30 to 50 m (bottom depth in the area - 130 to 143 m) to the south and southeast of Black Rock ... Cruise 30 07.07- 08.08.87 6 0 60 70 120 100 160 the south, 105 mm to the east and 110 mm to ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 125–164 : Auteur(s): Frolkina, G.A., M.P. Konstantinova and I.A Trunov

5. Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald Islands using catch-at-age and aged mark-recapture data from the main trawl ground

   estimation, age–length keys, CCAMLR mailto:steve.candy@aad.gov.au Candy et al. 30 but excluding length ... the functional form of selectivity was correctly specified in the BODE model, both models gave close ... , when a minor misspecification of the functional form of selectivity was fitted, the CCODE model gave ... values obtained from CASAL for Ground B trawl catches for season 2 (mid-season: 1 May–30 September) and ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 29–45 : Auteur(s): Candy, S.G., D.C. Welsford, T. Lamb, J.J. Verdouw and J.J. Hutchins

6. Consideration of major issues in ecosystem monitoring and management

   30–150 Calendar dateP ot en tia l r an ge fr om c ol on y Calendar date Foraging trip ... 10000 15000 0 10 20 30 40 50 60 70 80 90 100 Year Po pu la tio n si ze Recruitment fails twice ... at random each decade Recruitment normal 50% Survivorship 0 1000 2000 3000 4000 0 10 20 30 ... that the information is given as survivorship rather than mortality because that is the common form ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 213–232 : Auteur(s): Everson, I

7. Chilean krill fishery: analysis of the 1991 season

   . Accordingly, the Chilean National Fisheries Service (CNFS) produced a form to collect haul-by-haul ... 100 co ...r 90 ctl Q) "- 80 ctl .0 ::J 70 Cl) 60 E 0 '-....... 50 .c () 40 ro () 30 ... : Total catch-per-day during 1991. 30 279 Chilean Kri\\ Fishery Analysis of 1991 season 16 ... Fishery Analysis of 1991 season 30~--------~~------------------------1300 /''''\ -.::::- .c UJ Q ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 273–287 : Auteur(s): Marín, V.H., A. Mujica and P. Eberhard

8. Preliminary results of a bottom trawl survey around Elephant Island in October and December 1987

   varied from 65-458 m. Standard trawling time was 30 minutes. The location of fishing stations is set out ... females had developing ovaries. Males were almost exclusively sexually mature. About 30% of them had ... 1986, when the species was found to form prespawning aggregations. This may have influenced the amount ... Notothenia rossii marmorata Fischer 1885 in the west Antarctic waters. Arch.FischWiss. 30(1): 39-66. KOCK ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 185-200 : Auteur(s): Kock, K.-H.

9. 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 ... ) where ( ). denotes the expectation operator and 2 Q x denotes the quadratic form Tx Qx. The vec ... represent the dynamics of real ecosystems. The operating model can be written in the gen- eral form ... simulations. Parameter Value MPC prediction horizon N = 20 Input bounds Umin = [400 400]T Umax = [1 000 ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 119–137 : Auteur(s): Hill, S.L. and M. Cannon

10. Estimating krill recruitment and its variability

    were available in a form suitable for the method. The required data are the haul-by-haul densities by ... ), taking the second group with mean length in the range 30 to 38 mm as age class 2, are: Number of ... la Mare 10 9 8 7 6 h Y .M 5 a 4 3 2 1 0 0 10 20 30 40 50 60 70 Length ... krill. 0 10 20 30 40 50 60 Length class (mm) Figure 2: Fit of a mixture distribution to the density ...

    Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 55–69 : Auteur(s): de la Mare, W.K

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