Résultats de la recherche

1. Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey

   -year period of harvesting are shown primarily in graphical form, with this probability plotted ... the growth curve form used by Rosenberg et al. (1986), together with the assumption that mass is ... of the form: For the models considered here, a fishing season from tl to t2, and an effective ... : while predation loss over the whole year is evaluated from an expression of the form: which here takes ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 81–106 : Auteur(s): Butterworth, D.S., G.R. Gluckman, R.B. Thomson, S. Chalis, K. Hiramatsu and D.J. Agnew

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. Distribution of fish larvae at South Georgia: horizontal, vertical, and temporal distribution and early life history relevant to monitoring year-class strength and recruitment

   ). Pseudochaenichthys georgianus larvae of 12-30 mm SL were found on the shelf near the north-east coast of South ... East Bay about one month later when they were 10-30 mm SL. Psilodraco breviceps larvae of 11-27 mm ... -2 m depth was sampled by horizontal tows of 30 minutes duration using a Foredeck Net (FNet) (1 m2 ... depth strata. These net hauls were at 250-150, 150-70 and 70-2 m depth, each for 30 minutes duration ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 105-141 : Auteur(s): North, A.W.

4. 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.

5. Factors that may influence the accuracy of abundance estimates from CCAMLR tag-recapture programs for Dissostichus spp. and best practice for addressing bias

   Lincoln-Petersen equation, the simplest form of an abundance estimator using tag-recapture data, was used ... – dirk.welsford@aad.gov.au Abstract The Lincoln-Petersen equation, the simplest form of an abundance estimator ... features in common with the simplest form of an abundance estimator, known as the Lincoln- Petersen ... controlled measures of survival and tag-detection for the CCAMLR tagging program. Document WG-SAM-12/30 ... example, anchoring the standard size of CCAMLR T-bar tags between the pterygiophores at the base of the ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 63–72 : Auteur(s): Welsford, D.C. and P.E. Ziegler

6. The biology, ecology and development of fishery management advice for the anomuran crabs at South Georgia (CCAMLR Subarea 48.3)

   10.10–20.00 44°15'W 43°30'W 42°45'W 42°0'W 41°15'W 40°30'W 39°45 ... 'W 39°0'W 38°15'W 37°30'W 36°45'W 36°0'W 35°15'W 34°30 ... 'W 44°15'W 43°30'W 42°45'W 42°0'W 41°15'W 40°30'W 39°45'W ... 39°0'W 38°15'W 37°30'W 36°45'W 36°0'W 35°15'W 34°30'W 45°0'W ...

   Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 1–15 : Auteur(s): Belchier, M., T. Peatman and J. Brown

7. 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

8. Krill population biology during the 1991 Chilean Antarctic krill fishery

   419 hauls. In Area A, a unimodal size frequency distribution was found; the size range was between 30 ... between 30 and 55 mm TL, with a mean TL of 45 mm for females and 48 mm for males. A very weak mode for ... peche de kriU autour des i'les Shetland du Sud it bord du navire-usine chilien le Kirishima. Les traits ... la zone A, une distribution unimodale de frequences de tailles a ete obselVee; la TL variait de 30 a ... :>KHbIX IIIeT JlaH,llCK 1-1 X O-BOB 1-1 PatioH B - K ceBepy OT O-Ba 3J1e

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 223–235 : Auteur(s): Mujica R., A., E. Acuña S. and A. Rivera O.

9. 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

10. Changes in biomass of eight species of finfish around the South Orkney Islands (Subarea 48.2) from three bottom trawl surveys

    survey are presented in Kock (1986). A total of 30 hauls were made: 3 in the 50-150 m stratum, 9 in the ... conducted during daylight hours. The target time for a haul was 30 minutes, with any haul less than 20 ... 031 (10 897-31 093) 10 (4-34) 605 (367-1 191) 14 795 (8 751-29 750) 15 410 (9 353-30 368) 2 ... exception of C. gtinnari in cases where they form very dense concentrations. Other factors that warrant ...

    Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 53–74 : Auteur(s): Jones, C.D., K.-H. Kock and E. Balguerías

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