Search results
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Histological study on the ovarian development of mackerel icefish (Champsocephalus gunnari) from the South Georgia Islands
on ovarian development in Champsocephalus gunnari caught by the RV Dr Eduardo L. Holmberg in the ... histological analysis was carried out on ovarian development in Charnpsocephalus gunnari caught by the RV Dr ... , 1987; North and White, 1987). In many fish species these strategies are complemented by complex ... size Oocyte Development Stages (50 to 120 pm); this is accompanied by a diminution of the n / c ... development stages for C. gunnari and corresponding classification used by other authors. This Study ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 35–49 : Author(s): Macchi, G.J. and E.R. Barrera-Oro
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Exploratory fishing for Dissostichus spp. in the Antarctic region (Subareas 48.1, 48.2 and 88.3)
weight, as well as the weight of the trunks (headed, gutted and tailed - HGT), was registered ... del Fuego was conducted as part of the New Fisheries Projects developed by Chile, primarily to ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 1–17 : Author(s): Arana, P.M. and R. Vega
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Analysis of trends in Japanese krill fishery CPUE data, and its possible use as a krill abundance index
krill abundance index Abstract / Description: Haul-by-haul logbook catch and effort data from the ... -ku Shizuoka, 424-8633 Japan Abstract Haul-by-haul logbook catch and effort data from the Japanese ... are dictated by factory capacity and therefore the amount caught is usually regu- lated by this ... much as possible, to provide constant supplies to the factories by adjusting the catch to factory ... processing capacity. Adjusting catches can be done by regulating fi sh ing effort, but catch is also ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 1–28 : Author(s): Kawaguchi, S., S. Candy, S. Nicol, K. Taki and M. Naganobu
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Revised estimates of seabed areas within the 500 m isobath of the South Orkney Islands (subarea 48.2) and consequences for standing stock biomass estimates of nine species of finfish
examined, the point estimate of total biomass increased from 5 to 30% for eight species and decreased by 20 ... eight species and decreased by 20% for one. Une carte bathymetrique revisee des iles Orcades du Sud ... presented by Everson (1987). These estimates were based on constructing isobaths by hand based on ... converted to planar square areas by measuring the distances between isobaths and converting to square ... 1999, there was no weighting by data series, and any replicated data points were averaged. Data used ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 197–204 : Author(s): C.D. Jones
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Changes in biomass of eight species of finfish around the South Orkney Islands (Subarea 48.2) from three bottom trawl surveys
surveys within the 500 m isobath of the South Orkney Islands, most recently by the Federal Republic of ... the 500 m isobath of the South Orkney Islands, most recently by the Federal Republic of Germany in ... tonnes of C. gunnari, supported mainly by 1973/74 and 1974/75 cohorts (Kock, 1991). Both cohorts were ... largely exhausted within two years, and overall catches declined by almost two orders of magnitude ... bottom trawl surveys conducted by the Federal Republic of Germany (Kock, 1986) in 1976,1978 and 1985 ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 53–74 : Author(s): Jones, C.D., K.-H. Kock and E. Balguerías
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Is the attempt to estimate the biomass of Antarctic fish from a multi-species survey appropriate for all targeted species? Notothenia rossii in the Atlantic Ocean sector – revisited
was one of the first conservation measures adopted by CCAMLR. Fish biomass within a CCAMLR subarea or ... adopted by CCAMLR. Fish biomass within a CCAMLR subarea or part of a subarea is commonly estimated from ... Introduction The directed fi shery for Notothenia rossii was prohibited by CCAMLR in 1985. No exploitation on ... et al., 2002). These surveys were conducted individually by the UK, Germany and the USA until the ... those used by the research vessels were used. Trawling times were between 10 and >120 min on the ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 141–153 : Author(s): Kock, K.-H., M. Belchier and C.D. Jones
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Comparison of age readings from scales and otoliths of the Patagonian toothfish (Dissostichus eleginoides) from South Georgia
value recommended by CCAMLR. File: 10cassia.pdf ... by CCAMLR. Resume Comparaison des lectures d'bges d'ecailles et d'otolithes de 105 specimens de ... was highlighted by the CCAMLR Working Group on Fish Stock Assessment (SC-CAMLR, 1991,1992,1993,1994 ... ). It was noted that this refinement could be achieved by comparing age readings from scales and ... otoliths of the same fish, as well as readings conducted by different readers. According to Moreno and ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 191–203 : Author(s): Cassia, M.C
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Indices of prey availability near the Seal Island CEMP site: 1990 to 1996
. Indices derived from these data indicate that although average prey density varied by a factor of almost ... indicate that although average prey density varied by a factor of almost five between 1990 and 1996, prey ... prey availability. Acoustic volume backscattering data, from surveys conducted by the US Antarctic ... . Acoustic data collection from 1992 to 1996 was described by Hewitt and Demer (1992, 1993a, 199310, 1994a ... 1995 1996 Acoustic data collection during 1990 and 1991 was described by Amos et al. (1990) and ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 37–45 : Author(s): Hewitt, R.P., G. Watters and D.A. Demer
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Management and assessment options for the crab fishery around South Georgia
their efficacy. This is discussed here under the heading 'Refuges'. MANAGEMENT OPTIONS IN THE CONTEXT ... /effort controls also requires estimates of stock abundance, which could be obtained by depletion methods ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 193–202 : Author(s): Basson, M. and D.D. Hoggarth
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Reproduction of the mackerel icefish (Champsocephalus gunnari) and its implications for fisheries management in the Atlantic sector of the Southern Ocean
exploited species could be best protected by the establishment of a permanent closed fishing season from 1 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 51–68 : Author(s): Kock, K.-H.