Résultats de la recherche

1. Analysis and modelling of the Soviet Southern Ocean krill fleet, II: Estimating the number of concentrations and analytical justification for search data

   longitude is assumed to be 30 nm. Figures 6 to 9 show the results of the application of the rule ... (1989) concentrations are presumed to persist for the entire fishing period of14 to 30 days.) 290 ... for data entry. Particpants at the Krill CPUE Workshop provided useful comments, as did Ray Hilborn ... 30.9 167.2 680 4 12.5 9 30 200 58.4 223.8 517 5 56 25 7 900 55.7 183 142 6 53.5 24 56 200 118.7 37.5 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 283–322 : Auteur(s): Mangel, M.

2. Preliminary appraisal of Antarctic fish selection by the 32/36 bottom trawl combined with various codends

   , widening in the front to form a square inlet with sides of 4.5 m length measured with meshes stretched ... of a rope with a thickness of 30 mm (version I), Figure 5. Since there was a danger that those ... calculated as a mean from 30 measurements. For investigations, only those tows were selected which ... size was 123.6 mm, after the first two and after 30 hours of the codend exploitation its mesh size ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 1-48 : Auteur(s): Zaucha, J.

3. The error of the biomass estimate as a function of survey parameters and the statistics of a density field of krill aggregations

   rewrit- ten in a different form: 1) . .¥ lJ =~, h ~ A('l.,.) 1 S nx !f 'Ft l-J. In case of trawl ... ) This 1'6latioship written in the form:/)1 =1}1N is well- known and often used when processing ... circle. In other words, using (1), the equality (4) can be rewritten in the form! (6) Hydroacouetic ... examination, with steps Iz,r and A'V t along coordinate axes:Z: and !I, connected with direction of survey ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 213-228 : Auteur(s): Kizner, Z.I.

4. An integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) for the Heard and McDonald Islands using CASAL

   – trawling and longlining. The annual cycle was split into three seasons: (s1) 1 December–30 April, 5 ... Integrated stock assessment for Dissostichus eleginoides using CASAL (s2) 1 May–30 September, and (s3) 1 ... October– 30 November. These seasons were structured to accommodate the main longline fishery occurring ... 120 and 160 hauls, each of which were of approxi- mately 30 min duration, that were randomly located ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 1–34 : Auteur(s): Candy, S.G and A.J. Constable

5. Length-based assessments revisited – why stock status and fishing mortality of long-lived species such as toothfish cannot be inferred from length-frequency data alone

   ) with 0% as a target level or 30–40% where no upper size limit exists. The proportional length-based ... recruitment declines linearly 0.2 Fishery parameters Season 1 Dec–30 Nov Catch levels for the constant ... such as the vari- ation in fishing mortality and recruitment, the form of the fishing selectivity ... were known exactly. The form of the selectivity functions determines directly the range of fish ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 57–73 : Auteur(s): Ziegler, P.E., D.C. Welsford and A.J. Constable

6. An index of per capita recruitment

   underestimate recruits per spawner by 30% if reasonable assumptions are made regarding the variability of ... 30% if reasonable assumptions are made regarding the variability of mortality and the proportion of ... reproducteur de 30% si les hypothPses avancPes sont raisonnables en ce qui concerne la variabilitg de la ... H3MeHYHBOCTM CMePTHOCTH H HOnH ~-JI~THHx HepeCTXIIJtiXCR oco6eI? PCR naeT 3aHMXeHHYH) ( ~ 3 30%) OqeHKy ... un sesgo adicional. En general, el PCR subestimara en 30% el numero de reclutas por reproductor si ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 179–196 : Auteur(s): Hewitt, R

7. Krill fishing in the Scotia Sea in relation to bathymetry, including the detailed distribution around South Georgia

   restricted area of about 30 x 20 km. There were also a few isolated hauls made outside this area. During ... the fishery in this area is likely to make some form of catch-per-unit-effort (CPUE) statistic a ... . 1996. Environment-krill relations in the South Georgia marine ecosystem. CCAMLR Science, 3: 13-30 ... ~ C U I T ~ ~ H ~ I X (0,5" LUMPOTbI X 1" , Q o ~ ~ o T ~ I ) AaHHbIX nOKa3bIBaK)T, YTO B Mope ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 1–17 : Auteur(s): Murphy, E.J., P.N. Trathan, I. Everson, G. Parkes and F.H.J. Daunt

8. Performance and geometry of the FP-120 trawl used during UK fish stock assessment surveys around South Georgia, Subarea 48.3

   seabed. shows track of headline height a t station 30, The captain was not aware of the information In ... Pilling and Parkes 30 T I 3.5 4 4.5 Average Head Height (m) Figure 8: Regression of average head ... d'evaluation des stocks de poissons autour de la Georgie du Sud menee en 1993/94 a bord du navire marchand ... (17, 20 and 21) were logged every 30 seconds and the fourth (22) every 20 seconds. The hydrophone ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 51–69 : Auteur(s): Pilling, G. and G. Parkes

9. Results of Soviet investigations of the distribution and ecology of pelagic squids (Oegopsida) in the Southern Ocean

   spe_eies is a plankton or a se111i-plankton form (Nests, l 982). Judging from the fact that the mantle of ... or semi-plankton form, The Antarctic Deep Warm Water Mass in the Southern Ocean moves southward ... quantitative distribution and biomass formed in the Polar Frontal Zone where they form schools (Lubimova ... °-30°S) north of the Antarctic Convergence exceeds lOO/m2 and their number is up to 10000/m 2 in ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 79-111 : Auteur(s): Lubimova, T.G.

10. Choosing distance between acoustic survey tacks

    , ~ , ~,,~" !,I I6~,\ :::::;::""""-1:~:,~ 30~ ~ <: I:' · .. . I·"'t:':::::"............ --=:z"=~ 20% '= I,' 7 ... position of the starting point, the extension of tacks, the form and size of the surveyed area, and the ... stock exploitation rate and other factors, we have to estimate the biomass with an error 8B~30 ... paCCT05fHHe MeJKgy rancaMH rrpH aKycTHqeCKOH CoeMKe ~enecoo6pa3Ho BhI6Hpa T h, OCHOBhIBa~c h Ha THrrHqHOM ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 153-164 : Auteur(s): Kalikhman, I.L., Z.I. Kizner, B.R. Zaripov and W.D. Tesler

Pages