Résultats de la recherche
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Updated status of Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in inshore sites of the South Shetland Islands: results of a long-term monitoring program (1983–2016) at Potter Cove
, to achieve a 33-year record, 1983-2016, to monitor changes in the prevalence of three species of ... consistent with those achieved from the most recent offshore bottom trawl research cruises in 2007 and 2012 ... abundance of N. coriiceps. Results were also consistent with trends in seabirds that feed on juveniles of ... decline in G. gibberifrons recruitment evidenced by the low proportions of juvenile fish; and 3) a high ...
Meeting Document : WG-FSA-16/02 : Auteur(s): E. Barrera-Oro, E. Marschoff and D. Ainley
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Krill population biology during the 1991 Chilean Antarctic krill fishery
and 55 mm TL, with a mean TL of 45 mm for females and 48 mm for males. A very weak mode for juvenile ... % juveniles. Of the females sampled, 25.2% bore spermatophores. Although the smallest specimen found with a ... spermatophore had a 36.5 mm TL, 80% of the females with spermatophores had a TL larger than 45 mm. In Area B, a ... bimodal size frequency distribution and a larger size range were found, with one mode between 32 and 55 mm ... were between 45 and 53.7 mm TL with a mode of 46.5 mm TL (Figure 3). In Area B north of Elephant ... ) Figure 3: Size frequency distribution of total females and females with spennatophores in Area A. 230 ... 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 ... specimen found with a spermatophore had a 36.5 mm TL, 80% of the females with spermatophores had a TL ...
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.
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Glider-based estimates of Antarctic krill in Bransfield Strait, and the West shelf off Livingston Island, Antarctica
Research), equipped with a suite of oceanographic sensors (CTD, fluorometers, and oxygen) and a three ... from 350 glider profiles was 25.0 g m-2, compared with the mean biomass density of 28 g m-2 collected ... the area of ship surveys to overlap with the area surveyed by the glider was 79 g m-2. Mean biomass ... , which overlapped spatially with the glider-based surveys, was 82 g m-2. Developing a proper statistical ...
Meeting Document : WG-EMM-2019/13 : Auteur(s): C. Reiss, A. Cossio, G. Cutter, J. Walsh and G. Watters
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Fishery Report: Exploratory fishery for Dissostichus spp. in Division 58.4.2
distribution was observed from 2002/03 to 2004/05, with broad modes at TOT 58.4.2 3 Weighted Frequency ... association with a new fishery for Chaenodraco wilsoni, Lepidonotothen kempi, Trematomus eulepidotus and ... 2001/02 in association with a new fishery for Macrourus spp. In 2002/03, the fishery for Dissostichus ... required to conduct fishery-based research in accordance with CM 41-01. This includes the collection of ...
Document : Site Section: Publications
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Antarctic fur seal (Arctocephalus gazella) pup growth rates obtained at Cape Shirreff, Livingston Island, South Shetlands: 1994/95 to 1997/98 (CEMP Index C2, Procedure B)
followed by females, which appear to have no relation with sea-ice variation. Four years of data is ... ). For comparison purposes we contrasted our data with values reported for Bird Island, South Georgia ... (1973-1987). From this comparison, Cape Shirreff's male pups resulted to have a faster growth with ... Shirreff's male pups grow faster in order to undergo with better body conditions higher latitude ...
Meeting Document : WS-AREA 48-98/18 Rev. 1 : Auteur(s): R. Hucke-Gaete, V. Vallejos and D. Torres (Chile)
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Schedule for the Thirty-eighth Meetings of the Commission and the Scientific Committee
In discussion with the Chairs, this preliminary timetable has been produced to allow both SCIC and ... small delegations to engage more easily with these Committees. This preliminary timetable may be ... SCAF 6. Performance Review SCAF 7. Consideration of dormant funds 10. Cooperation with other ... :00 Refreshment Break 11:00-12:30 11. Cooperation with other organisations 12:30-14:00 Lunch 14:00 ...
Page : Site Section: Meetings
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Fishery Report: Dissostichus eleginoides Prince Edward Islands South African EEZ (Subareas 58.6 and 58.7)
marine mammals with longline fishing operations .... 7 7. Harvest controls and management advice ... and 58.7. Up to seven operators have been licensed by South Africa to fish in any one year. However ... the CCAMLR database. Most D. eleginoides caught by longline range from 50 to 120 cm in length, with ... rates, and recaptures by year since 2005/06, are given in Table 2. Table 2: Number of toothfish ...
Document : Site Section: Publications
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Age determination of Notothenia gibberifrons from the South Shetland Islands, Antarctic Peninsula subarea (Subarea 48.1)
scale readings gave a result of one year more. This could arise from the difficulty in differentiating ... most reliable method. Mean length data at age presented here for Low I. specimens were compared with ... one extra year (Table 1). This could arise from the difficulties with false checks as mentioned above ... , while Hoffmann (1982) worked with first pelvic fin ray. Later on, Clasing et al. (1985), using otoliths ... compared in 19 Potter Cove specimens. In some cases scale readings gave a result of one year more. This ... presented here for Low I. specimens were compared with previous published values. This confirmed that fish ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 143-160 : Auteur(s): Barrera-Oro, E.
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Analisis de los censos de Arctocephalus gazella efectuados en el sitio de especial interes cientifico no. 32, Isla Livingston, Antarctica
with the purpose to clarify its population size, between the Antarctic seasons 1965-66 and 1991-92. The ... results show that the population size of this species, in the study area increased during 26 years, form ...
Meeting Document : WG-CEMP-93/24 : Auteur(s): A. Aquayo L. and D. Torres N. (Chile)
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Fish by-catch in the krill fishery: 2018 update
the most frequently reported taxa in the C1 data and SISO data, with Lepidonothen larseni the most ... the commercial krill fishery catch data. As in previous years there was a high degree of overlap in ...
Meeting Document : WG-FSA-18/10 : Auteur(s): CCAMLR Secretariat