Résultats de la recherche
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Natural mortality rate in the mackerel icefish (Champsocephalus gunnari) around South Georgia
and Dorovskikh (1991), with an age/length key from 1972 used to devise a separate age composition ... year, recruitment is constant; (iii) sampling of the population is random with respect to age; and ... the same region, but several years later, as is the case with the Frolkina and Dorovskikh (1991 ... . The age/length key from 1972 was obtained from a period several years after large-scale fishing ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 245–257 : Auteur(s): Everson, I
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Updated models of the habitat use of Patagonian toothfish (Dissostichus eleginoides) on the Kerguelen Plateau around Heard Island and the McDonald Islands (Division 58.5.2)
(Dissostichus eleginoides) in the CCAMLR area, with landings of >5000 t.yr-1 from the French EEZ (Division ... sex composition, when controlling for gear selectivity, year and sex effects. Fish length increased ... with depths suggesting spatial segregation of life stages. Spatial predictions showed that small ... larger fish inhabit deeper waters (>1500m) especially on the eastern part of the Plateau, where the ...
Meeting Document : WG-FSA-14/42 : Auteur(s): C. Péron and D.C. Welsford (Australia)
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The ecosystem approach to managing fisheries: achieving conservation objectives for predators of fished species
inainmals - M AG Americas, 2000) Age at maturity (years) Plus class Natural mortality (year-]) Body ... 3 in the food web. The siinulatio~i is seeded with initial values for each of the five species ... and run for 500 years before a trial begins. The trial is run for 100 years with fishing beginning ... respectively, and (d) Predator 3 with selection values of prey species 1 and 2 being 0.2 and 1.0 respectively ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 37–64 : Auteur(s): Constable, A.J
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Liste officielle des mesures de conservation en vigueur saison 2001/02
site To be reviewed every five years in accordance with Conservation Measure 18/XIX (last review in ... with Conservation Measure 18/XIX (last review in 2000). 2/III 3/IV 4/V CONSERVATION ... using this gauge in accordance with Article 2. 4/V 3 ARTICLE 5 Determination of the Mesh Size ... one series of 20 meshes, selected in accordance with Article 3, inserting the gauge manually without ...
Document : Site Section: Publications
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Zooplankton: Trophic modelling of the Ross Sea
the early start to spawning of E. crystallorophias compared with E. superba (Makarov et al. 1991). E ... shallower; (3) that between these depths, E. crystallorophias density decreases linearly with depth. These ... ) differences in the timing of the work; (3) variations in changes in krill abundance with season in different ... years, assuming that growth periods are only for 4–6 months of the year (Ikeda, 1985). Euphausia ...
Document : Site Section: Publications
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Liste officielle des mesures de conservation en vigueur saison 2003/04
) Protection of the Cape Shirreff CEMP site To be reviewed every five years in accordance with Conservation ... reviewed every five years in accordance with Conservation Measure 91-01 (last review in 2000 ... lists conservation measures adopted by the Commission in accordance with Article IX of the Convention ... year in which the latest version of the measure was adopted or revised follows in brackets. The ...
Document : Site Section: Publications
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e-sc-xii-a6.pdf
... results (for four years) compared with appropriate data from a 15-year data series on birth mass and ... from 1991/92. Year class success from these and other years appears to be associated with female ... for gentoo penguins at Bird 333 Island, a year with high breeding success can also be ... data were higher in every year (and significantly so for male pups in all years and for female pups in
application/pdf attached to:WG-CEMP-93
Meeting Report : WG-CEMP-93
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Seals: Trophic modelling of the Ross Sea
crabeaters reach one year of age. Sexual maturity is reached in 2.5-6 years, with females reaching maturity ... population of about 1500 animals occurs on the eastern side of McMurdo Sound (Testa & Siniff 1987), with ... –December, with mating in late December–early January on pack ice, and moulting in February (Blix & Nordøy ... study area for about 3 months of the year over the summer. Adults reach 2.6 m in length and the mean ...
Document : Site Section: Publications
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Differences in distribution and population structure of krill (Euphausia superba) between penguin and fur seal foraging areas near Seal Island
identify and evaluate their foraging areas during early January 1990/91. Penguin foraging areas were found ... the surface throughout the day. With regard to body size and maturity of krill in the inshore foraging ... dominant with occasional occurrences of juveniles (modal length 21 mm). In contrast, in the offshore ... occurred only occasionally but in large aggregations (surface length about 2 to 3 km) of higher densities ... ), middle-sized krill (modal length 43 mm) were dominant with occasional occurrences of small specimens ... the study period (early January). Later in the season (mid-February) NOAA conducted another tracking ... -February. Moreover, foraging trip duration was shorter in February (1 to 3 days) than in January (5 to 9 ... conducted to identify and evaluate their foraging areas during early January 1990/91. Penguin foraging ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 273–285 : Auteur(s): Ichii, T., H. Ishii, J.L. Bengtson, P. Boveng, J.K. Jansen and M. Naganobu
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A hypothetical life cycle for Antarctic toothfish Dissostichus mawsoni in Antarctic waters of CCAMLR Statistical Area 88
eastwards with the eastern Ross Sea gyre settling out along the continental slope and shelf to the east of ... and timing of spawning, and the probable early life history characteristics of toothfish, we ... larvae after an 18–24 month period suggested by the models agreed moderately well with the distribution ... northern area for up to 2–3 years. They then move southwards back onto the shelf and slope where ...
Meeting Document : WG-FSA-07/35 : Auteur(s): S.M. Hanchet, G.J. Rickard, J.M. Fenaughty, A. Dunn and M.J. Williams (New Zealand)