Resultados de la búsqueda
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Fishing and conservation in southern waters
Abstract: Fishing in the Southern Ocean commenced on finfish in 1969/70 and on krill in 1972/73 ... and the Kerguelen Islands. After 15 years of exploitation, most fish stocks have been heavily depleted ... the by-catch of juvenile fish in the krill fishery, to incidental mortality of birds during longline ... operations and the entanglement of seals in fragments of discarded or lost fishing gear. Most fish stocks had ...
Meeting Document : SC-CAMLR-XII/BG/11 : Autor(es): Delegation of Germany
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Spatial and temporal distribution of krill Euphausia superba biomass in the Ross Sea (1989/90, 1994/95)
comparison the biomass from different years, the whole investigated area was divided in rectangles of 1°x30 ... 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 ...
Meeting Document : WG-EMM-97/53 : Autor(es): Kalinowski, J., Azzali, M.
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Research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Subarea 48.6
began in 2013 in data-poor fisheries. In the present report, catch, effort and biological data recorded ... by all effective vessels were analyzed for the improvement of stock assessment in the research blocks ... . Based on the result, the next three-season (2016-18) research plan in Subarea 48.6 is also presented ... using the CPUE method (using Division 88.2H as a reference area) for Dissostichus mawsoni in block ...
Meeting Document : WG-SAM-15/06 : Autor(es): Delegation of Japan
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Results of the sixth Ross Sea shelf survey to monitor abundance of sub-adult Antarctic toothfish in the southern Ross Sea, January 2017
appears in 2012 progressing through each year, with the appearance of a second strong cohort in 2015. The ... abundance from a well-designed survey could be a useful input into the Ross Sea stock assessment model. In ... this paper we provide results of the sixth annual survey in the time series. The objectives of this ... survey included monitoring sub-adult (≤ 110 cm TL) toothfish in the south of SSRUs 881.J and 881.L in the ...
Meeting Document : WG-SAM-17/01 : Autor(es): K. Large, L. Robinson and S. Parker
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Microincrement analysis in otoliths of Notothenia rossii fingerlings from the South Shetland Islands to estimate early life history timings and to validate annulus formation
. Finally, early juveniles (age group 1+) hatched in July-August, entering in the cove the following year to ... Abstract: In this study, otolith microstructure analysis on 7 blue phase fingerlings and 26 brown ... phase fingerlings selected from a total sample of 364 early juveniles caught mainly in summer from 2003 ... timings and to validate annulus formation. Although in the literature it has been reported that N. rossii ...
Meeting Document : WG-FSA-12/04 : Autor(es): E. Barrera-Oro (Argentina) and M. La Mesa (Italy)
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Comparison between the CCAMLR-2000 and KY 1988 surveys on environmental variability of krill in the Scotia Sea, Antarctica
Japanese R/V Kaiyo Maru Survey in the 1987/88 austral summer season in the Scotia Sea. There were distinct ... krill distribution. The sea ice cover in 1987/88 extended northward widely during the last winter season ... such that sea ice remained around the South Orkney Islands until December 1987. In contrast, the sea ... ice cover in 1999/2000 reduced southward such that no sea ice remained around the South Orkney Islands ...
Meeting Document : WG-EMM-02/43 : Autor(es): M. Naganobu (Japan), M. Brandon (United Kingdom), K. Ito, K. Segawa (Japan) and V. Siegel (Germany)
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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 : Autor(es): T. Ichii, K. Kayatama, N. Obitsu, H. Ishii and M. Naganobu (Japan)
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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 : Autor(es): Kasatkina, S.M., Abramov, A.M., Polischuk, M.I., Sushin, V.A.
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Preliminary results of the third CCAMLR sponsored research survey to monitor abundance of subadult Antarctic toothfish in the southern Ross Sea, February 2014
first survey was completed in February 2012 (), and the second survey was completed in February 2013 ... (Parker et al. 2013). In this paper we provide preliminary results of the third survey in the time series ... toothfish in the southern Ross Sea (strata A–C) using standardised gear in a standardised manner; and (ii ... ) To sample additional experimental stations in an adjacent area to identify areas of high subadult ...
Meeting Document : WG-SAM-14/24 : Autor(es): S. Mormede, S.J. Parker, S.M. Hanchet, A. Dunn (New Zealand) and S. Gregory (United Kingdom)
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Results of the third CCAMLR sponsored research survey to monitor abundance of subadult Antarctic toothfish in the southern Ross Sea, February 2014 and development of the time series
first survey was completed in February 2012, and the second survey in February 2013. In this paper we ... provide results of the third survey in the time series. The objectives of this third survey were: (1) To ... carry out a longline survey to monitor subadult toothfish in the southern Ross Sea (strata A–C) using ... standardised gear in a standardised manner; and (2) To sample additional experimental stations in an adjacent ...
Meeting Document : WG-FSA-14/51 : Autor(es): S. Mormede, S.J. Parker, S.M. Hanchet, A. Dunn (New Zealand) and S. Gregory (United Kingdom)