Résultats de la recherche

1. Possible effects of different levels of krill fishing on predators – some initial modelling attempts

   for greater model flexibility. Deterministic Analysis In a deterministic context, at CO-existence ... CCAMLR Science, Vol. 2 (1995): 79-97 POSSIBLE EFFECTS ... variant of Model 2 of Butterworth et al. (1994). fishing for krill occurs, this distribution shifts to ... , illustrated in Figure 2, for the relationship Butterworth and Thomson Kril:l biomass B Figure 2: The ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 79–97 : Auteur(s): Butterworth, D.S. and R.B. Thomson

2. 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 ... la zone A, une distribution unimodale de frequences de tailles a ete obselVee; la TL variait de 30 a ... {,llY 30 I1 55 MM TL, Cpe,llHeti 06~eti ,llJII1HOti 45 MM Y CaMOK I1 48 MM Y CaMIJ,OB. TaK)I{e Ha6JIIO ... distribucion de frecuencia de TL fue unimodal y oscilo entre 30 y 55 mm, siendo 45 mm la media para las ...

   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.

3. 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

4. Characteristics of krill aggregations in the South Sandwich Islands subarea in January–February 2000

   characteristics of some 2 400 krill swarms detected in the study area were sized acoustically and are described in ... le 1 : Pr in ci pa l p ar am et er s of th e m id w at er tr aw l P T 7 2/ 30 8 ... .5 29 .0 35 .0 32 .0 25 .0 21 .0 a nd C V (% ) 41 .2 36 .6 30 .1 45 .2 40 18 .9 25 ... 29 .0 a nd C V (% ) 61 .5 59 .9 53 .5 46 .6 41 .6 51 .3 39 .9 40 .2 39 .9 30 .3 M ... 59°S 60°S 61°S 200 g m-2 20 g m-2 2 g m-2 0.2 g m-2 31°W 30°W 29°W ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 145–164 : Auteur(s): Kasatkina, S.M., A.P. Malyshko, V.N. Shnar and O.A. Berezhinsky

5. Spatially explicit population dynamics models for Antarctic toothfish in the Ross Sea region

   divided the Ross Sea region into 189 equal-area (24 000 km 2) cells. The underlying spatial distribution ... Within each spatial cell, the number of tooth- fish in the population model aged 2 to 30 was recorded ... ______________________________________________________________________ 1 Note that the CCAMLR management season is from 1 December to 30 November. In this report, the ... to 30 November 1997 is labelled the 1997 year. 21 Spatially explicit population dynamics ... separately, with a plus group at age 30. Also recorded was the population at each repro- ductive category ...

   Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 19–37 : Auteur(s): Mormede, S., A. Dunn, S. Hanchet and S. Parker

6. Movement and growth of tagged Dissostichus eleginoides around South Georgia and Shag Rocks (Subarea 48.3)

   validate otolith-based growth estimates. Approximately 2 260 toothfish have been tagged and released during ... recaptured, 30 from Shag Rocks, 7 from around South Georgia and 14 from around 42°S. Figure 2 shows the ... (1.3%) 30 (11.9%) 4 (1.7%) .. Advantages Able to tag large numbers. Juveniles tagged. Very ... otolith-based growth estimates. Approximately 2 260 toothfi sh have been tagged and released during ... croissances fondées sur les otolithes. Quelque 2 260 légines ont été marquées et relâchées pendant les ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 101–111 : Auteur(s): Marlow, T.R., D.J. Agnew, M.G. Purves and I. Everson

7. Towards an initial operational management procedure for the krill fishery in Subareas 48.1, 48.2 and 48.3

   tonnes; c r =15%) and (C c =2 million tonnes; c r =10%). Suggestions for proceeding with further ... (0.21) 0.67 (0.09) 0.016 (0.048) 25 2.92 (0.88) 10.46 (4.62) 0.80 (0.21) 0.65 (0.09) 0.019 (0.053) 30 ... =2 million tonnes; cr=10%). Suggestions for proceeding with further investigations of possible ... tonnes; cr=15%) et (Cc=2 millions de tonnes; cr=10%). Des suggestions sont faites pour la poursuite ... , Haxo.z:.SITCSI B .z:.Hana30He (Cc=1 MHJlJlHOH TOHH; cr=15%) H (Cc=2 MHJlJlHOHa TOHH; cr=10%). BHOCSITCSI ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 189–219 : Auteur(s): Butterworth, D.S.

8. A preliminary assessment of age and growth of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica

   . Standard length and weight were well correlated (r 2 = 0.99). Counts of growth zones in 304 thin-sectioned ... consecutive modes at 8–9, 30–40 and 50–70 mm in December, and assumed they rep- resented the 0+, 1+ and 2 ... 5. 0 0. 15 8 0. 13 2– 0. 18 4 –0 .4 –0 .6 to – 0. 1 A ll 30 4 1– 14 22 ... d1 A ll 17 86 0– 14 30 .8 - 0. 07 3 - –1 .2 - C os ... age­frequency histogram for 304 Antarctic silverfish sampled from the Ross Sea. 0 10 20 30 40 50 1 2 3 4 ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 75–86 : Auteur(s): Sutton, C.P. and P.L. Horn

9. Patterns and processes in the distribution and dynamics of Antarctic krill

   pa3paOaTbIBaJUlCb MTepaTMBHO, nO.SlBJUIIOllJ;MeC.SI BHOBb MO,aeJIM ,a o JI)KHbI 3aTeM CpaBHMBaTbC.SI co CTaTMqeCKMM ... and dynamics of krill and fin fish? 2. How important are biological factors such as predation and ... mid-Pacific, over the 2-50 km spatial scales, the range for which the best data are available for ... productivity can be modelled as, to a first approximation, a reflection of physical conditions. 2 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 281–299 : Auteur(s): Levin, S.A., A. Morin and T.M. Powell

10. Operational interactions of sperm whales and killer whales with the Patagonian toothfish industrial fishery off southern Chile

    = 3). The mean rate of depredation was 3% (±2% CI 95%; n = 180 sets) and ranged between 0 and 100 ... Sep Oct Nov Dec Month S pe rm w ha le s (in di vi du al s) 0 10 20 30 40 50 60 70 ... 80 90 E ffo rt ( ha ul s ob se rv ed ) (a) 0 5 10 15 20 25 30 35 40 45 Jan Feb ... 20 30 40 50 60 70 80 90 E ffo rt ( ha ul s ob se rv ed ) (b) (a) (b) Hucke ... le ng th ( m m ) (a) y = 6.2936x + 173.06 R2 = 0.8552 0 5 10 15 20 25 30 40 50 60 70 ...

    Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 127–140 : Auteur(s): Hucke-Gaete, R., C.A. Moreno and J. Arata

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