Résultats de la recherche
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The role of fish as predators of krill (Euphausia superba) and other pelagic resources in the Southern Ocean (submitted to the 2008 Joint CCAMLR-IWC Workshop)
targeted. Biomass estimates of C. gunnari existed for 1975/76, one year before large-scale exploitation ... spp.) in the 19th cen- tury and the large baleen whales in the first 80 years of the 20th century ... . Nototheniids and channichthyids have a life span of typically 10–20 years (Kock et al., 1985; La Mesa et al ... two zones: the area from 50° (approximate position of the APFZ) to 56°S where E. carlsbergi ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 115–169 : Auteur(s): Kock, K.-H., E. Barrera-Oro, M. Belchier, M.A. Collins, G. Duhamel, S. Hanchet, L. Pshenichnov, D. Welsford and R. Williams
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Catch per unit effort and proportional recruitment indices from Japanese krill fishery data in Subarea 48.1
12.2 1981/82 1 3264 615 13 334 0.30 1989/90 5 2538-3608 290-707 13, 15, 18, 20 1815 ... 11.41 1981 /82 1 3264 615 13 97 0.20 1989/90 4 2538-3608 290-707 13, 15, 18, 20 1830 ... et al. (1997) for two year classes: the 1991/92 year class, which showed apparently higher values ... results, discrepancies in proportional recruitment from two year classes were observed between our study ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 47–63 : Auteur(s): Kawaguchi, S., T. Ichii and M. Naganobu
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Experimental evaluation of the effectiveness of weighting regimes in reducing seabird by-catch in the longline toothfish fishery around South Georgia
of one stone at each attachment site (termed 'control' in this experiment) against the use of two ... experiment one line had the one-stone setup (single weight) and the other had the two-stone setup (double ... weights). In the second experiment one line had the two-stone (double weights) and the other had the ... , grey-headed albatrosses did not associate with the vessel in large numbers. Typically, one or two ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 119–131 : Auteur(s): Agnew, D.J., A.D. Black, J.P. Croxall and G.B. Parkes
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A review of the trophic role of mesopelagic fish of the family Myctophidae in the Southern Ocean ecosystem
Vozrozhdenie in the Falkland/Patagonian area (46"00f to 46°30'S,58030' to 60°00'S) show that the highly ... . La quantite importante de meso- et macroplancton consommee par les Myctophidae met en evidence le ... throughout the entire year, and by high plankton productivity to depths of 500 m or greater (Voronina, 1971 ... to one-third of the summer levels (Kozlov and Shust, 1991). Allowing for the possibility that the ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 71–77 : Auteur(s): Kozlov, A.N
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Length- and age-at-spawning of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea
stage for at least one year. Individual oocytes are then recruited into the vitellogenic phase over at ... maturation stage by approximately May each year. The age at 50% spawning for females on the Ross Sea slope ... spawn at a younger age with an A 50% of 12.8 years (95% CI 11.9–14.0) or 120.4 cm (95% CI 114.8–126.7 ... Paper Title: Length- and age-at-spawning of Antarctic toothfish (Dissostichus mawsoni) in the ... Age (years) 0 10 20 30 ... 400 10 20 30 40 0. 0 0. 2 0. 4 0. 6 0. 8 1. 0 Age (y) P ro po rti on s pa w ni ng Female ... 300 5 10 15 20 25 30 0. 0 0. 2 0. 4 0. 6 0. 8 1. 0 Age (yr) P ro po rti on s pa w ni ng ... f fi sh Age (years) 5 10 15 20 25 30 ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 53–73 : Auteur(s): Parker, S.J. and P.J. Grimes
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Potential interactions between wandering albatrosses and longline fisheries for Patagonian toothfish at South Georgia
of year, when chicks need frequent feeding and one parent remains at the nest brooding or guarding ... remainder being in one or two specific areas around the Falkland/Malvinas Islands. The location of ... of five vessels, only one almost one complete year) D. exulans appear to operating at a time. From ... , satellite-tracking, South Georgia, wandering albatross INTRODUCTION Over the last 20 years wandering ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 101–110 : Auteur(s): Croxall, J.P. and P.A. Prince
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Annual changes in species composition and abundance of myctophid fish in the north of South Georgia (Subarea 48.3), Antarctica, during austral winters from 2002 to 2008
% 10% 20% 30% 40% 50% 60% 20 30 40 50 60 70 80 90 100 110 120 130 Standard length (m m ) P e rc ... tio n 20 30 40 50 60 70 80 90 100 ... % 70% 40 50 60 70 80 90 Standard length (m m ) P e rc e n ta ge c o m po si ti o n 2002 (n=20 ... 110 120 130 Standard length (mm) (c) B 0% 10% 20% 30% 40% 50% 60% 70% 80% 10 ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 155–163 : Auteur(s): Iwami, T., M. Naganobu, K. Taki and M. Kiyota
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The foraging range of Adélie penguins at Béchervaise Island, Mac. Robertson Land, Antarctica, and its overlap with the krill fishery
point. Birds feeding chicks also made journeys of one to two days ranging up to 12 km after 17 January ... trips (two females and four males) during the incubation period (November to December 1991) and 17 trips ... (four females and two males) throughout January 1992 when birds were feeding chicks. Most birds made ... in the South Shetland and South Orkney Islands and reflects the distance offshore of krill, one of ... . Birds feeding chicks also made journeys of one to two days ranging up to 12 km after 17 January when ... Distance Bearing Approx. Stage of Notes Departed Away (km) Position of Breeding Cycle Fast Ice Front S ... ° 62.30 6 286 none feeding large chick short foraging trip UJ o :::> I- I- e:( -l R~ 65°30'S ... ~ JOOOO:: /I" ADELlE PENGUIN 66°00'S 66°30'S 67°00'S 67°30'S 56°E 5rE 58°E 59°E 60 0 E ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 337–344 : Auteur(s): Kerry, K.R., J.R. Clarke and G.D. Else
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Hook selectivity in the longline fishery of Dissostichus eleginoides (Nototheniidae) off the Chilean coast
130 140 150 50 60 70 80 90 100 110 120 130 140 12 14 12 10 1001-2000 1001-2000 n=62 10 n=55 ... 8 8 6 6 4 4 2 2 0 0 130 140 50 60 70 80 90 100 110 120 130 140 150 50 60 70 80 90 100 ... 2 2 60 70 80 100 110 120 130 140 1 50 60 70 80 90 100 110 120 130 140 TOTAL LENGTH (cm) TOTAL ... 50~-------------------------------------------- 40 30 20 10 0 40 50 40 30 20 10 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 107–119 : Auteur(s): Moreno, C.A.
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New data on spawning, hatching and growth of Champsocephalus gunnari on the shelf of the Kerguelen Islands
part of the Kerguelen shelf during the 1989/90 to 1993/94 period provide new information on the stock ... the inner shelf has enabled a new cohort of fish to be identified each year. However, annual ... outer shelf. The three-year cycle observed previously seems to be related to the maturation stage of ... each current cohort and the relative abundance of spawners-at-age during each winter spawning period ... period of one to two years, the bulk of the catches in the fishery, which is based only fish over three ... grow more than 10 cm a year during the two first years, after which minimum values are observed ... shelf as a nursery zone for one to two years, then migrate to the outer shelf. This is shown for each ... a full three-year cycle (spring 2989/90 to spring 1992/93) and comprised 13 cruises. Samples were ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 21–34 : Auteur(s): Duhamel, G