Résultats de la recherche
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Occurrence of Antarctic krill (Euphausia superba) concentrations in the vicinity of the South Shetland Islands: relationship to environmental parameters
(Euphausia superba) concentrations were studied in the waters north of the South Shetland Islands, a major ... krill fishing ground in the Antarctic, during the 1990/1991 austral summer. From early to mid-summer ... krill density increased and showed distinct offshore-inshore differences in abundance and maturity ... stages. In mid-summer, krill density was low in the oceanic zone (8 g m –2, and higher in the slope ...
Meeting Document : WG-EMM-98/18 : Auteur(s): T. Ichii, K. Kayatama, N. Obitsu, H. Ishii and M. Naganobu (Japan)
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ENCOUNTERS WITH VULNERABLE MARINE ECOSYSTEMS IN THE CONVENTION AREA
Abstract: So far in 2008/09, the Secretariat has received 30 VME-indicator notifications from ... , 5.1-10.4 VME-indicator units per segment, depth 1272-1694 m). No notification has been made in ... relation to fishing in Divisions 58.4.1, 58.4.2 and 58.4.3b. The notifications resulted in the declaration ... of seven risk areas in Subareas 88.1 and 88.2, and one VME FS rectangle was identified in Subarea ...
Meeting Document : WG-EMM-09/08 : Auteur(s): Secretariat
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2012–13
biological aspects and catch of Antarctic toothfish for the period 1997–98 to 2012–13. In 2012–13, all the ... in recent years, the remaining catches came mainly from SSRUs 88.1C, 88.1J, and 88.2H. Unstandardised ... Antarctic toothfish CPUE in the Ross Sea and Subarea 88.2 fisheries have fluctuated over the past 10 years ... with no trend. A standardised CPUE analysis in the Ross Sea fishery showed an increase to 2008 followed ...
Meeting Document : WG-FSA-13/48 : Auteur(s): S. Hanchet, S. Mormede and A. Dunn (New Zealand)
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2013–14
biological aspects and catch of Antarctic toothfish up to an including the 2014 season. In 2014, the Ross Sea ... . As in recent years, the remaining catches came mainly from SSRUs 88.1C, 88.1J, and 88.2H ... . Unstandardised Antarctic toothfish CPUE in the Ross Sea and Subarea 88.2 fisheries have fluctuated over the past ... 12 years with a slight decline in the past two years. Length frequency distributions of Antarctic ...
Meeting Document : WG-FSA-14/52 : Auteur(s): M. Stevenson, S. Hanchet, S. Mormede and A. Dunn (New Zealand)
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2004/05
eight years in Subarea 88.1 and for four years in Subarea 88.2 with a large amount of data collected on ... 3477 t against a catch limit of 3625 t. The catch limit was almost reached in Subarea 88.1 and exceeded ... in Subarea 88.2. D. mawsoni was the dominant catch in all 11 SSRUs fished. The main bycatch species ... has clearly demonstrated the strong influence of ice on this fishery. In 2001, 2003, and 2004, ice ...
Meeting Document : WG-FSA-05/29 : Auteur(s): S.M. Hanchet, M.L. Stevenson, N.L. Phillips and A. Dunn (New Zealand)
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A CHARACTERISATION OF THE TOOTHFISH FISHERY IN SUBAREAS 88.1 AND 88.2 FROM 1997–98 TO 2007–08
eleven years in Subarea 88.1 and for six years in Subarea 88.2. This report summarises the large amount ... of data collected on toothfish and the associated bycatch by all vessels participating in the fishery ... . All SSRUs in the two subareas except for 88.1D and 88.2C have now been fished. The 2008 D. mawsoni ... catch limit being slightly exceeded in the 2006 season, two catch limits in the 2007 season, and none in ...
Meeting Document : WG-FSA-08/22 : Auteur(s): M.L. Stevenson, S.M. Hanchet and A. Dunn (New Zealand)
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Spatial and temporal distribution of krill Euphausia superba biomass in the Ross Sea (1989/90, 1994/95)
biomass and what is its value. The hydroacoustic observations were done in the time when investigated area ... December- January). The process of ice melting began in mid November, near Ross Ice Shelf (so called ... polynia area) and moved towards North. All the time daytime was prevaled. Krill in aggregations both below ... ice and in ice free water was observed but below ice were rather single ones. Because in the same time ...
Meeting Document : WG-EMM-97/53 : Auteur(s): Kalinowski, J., Azzali, M.
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Variations in the diet composition and feeding intensity of mackerel icefish (Champsocephalus gunnari) at South Georgia (Antarctic)
) around Shag Rocks and the mainland of South Georgia was analyzed from c. 8,700 stomachs collected in ... superba), the hyperiid Themisto gaudichaudii, mysids (primarily Antarctomysis maxima) and in 1985 also ... Thysanoessa species. The proportion of krill and Themisto in the diet varied considerably between the three ... seasons, whereas the proportion of mysids in the diet remained fairly constant. Krill which has a high ...
Meeting Document : WG-FSA-93/24 : Auteur(s): K.-H. Kock and S. Wilhelms (Germany), I. Everson (United Kingdom) and J. Gröger (Germany)
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Krill catch distribution in relation to predator colonies, 1987-1991
Abstract: The distribution of krill catches in relation to predator colonies in Subareas 48.1 and ... 48.2 is shown. 74-90% of catches in Subarea 48.1 are taken within 100 km of predator colonies between ... December and March, and these are between 10 and 18% of the estimated total penguin consumption in this ... period. The pattern of fishing is very consistent in all years 1988-1991 in Subarea 48.1, but is more ...
Meeting Document : WG-KRILL-92/18 : Auteur(s): Secretariat
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Krill biomass and distribution in Subarea 48.2 during summer 1996
Abstract: The results of hydroacoustic survey of krill biomass assessment in Subarea 48.2 ... adjacent to Coronation Island, carried out in February-March 1996 in Russian RN "ATLANTNIRO" are ... presented. Taking in account close relation of krill and oceanographic structure of waters and currents ... , hydrorological conditions during surveys are also discussed in the paper. Average weighed density of krill in the ...
Meeting Document : WG-EMM-97/49 : Auteur(s): Kasatkina, S.M., Abramov, A.M., Polischuk, M.I., Sushin, V.A.