Résultats de la recherche
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Krill biomass assessment in Statistical Area 48 from the RV AtlantNIRO data - Autumn 1989/90
1989/90 Abstract / Description: A krill biomass census survey was carried out at two fishing grounds ... Sea. In contrast to this site, the one off the South Orkney Islands is well-established in terms of ... 600 S; 32° to 18°W) and southern (60° to 67°S; 20° to 18°W), was affected by different types of ... WG-KRILL-90/21 KRILL BIOMASS ASSESSMENT IN STATISTICAL ... AREA 48 FROM THE RV ATLANTNIRO DATA - AUTUMN 1989/90 A.C. Fedotov* * Abstract A krill biomass ... census survey was carried out at two fishing grounds in the South Sandwich and South Orkney Islands ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 115–121 : Auteur(s): Fedotov, A.C.
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A declining trend in the abundance of Notothenia rossii marmorata and Notothenia gibberifrons observed in fjords in two sites in the South Shetland Islands
gibberifrons observed in fjords in two sites in the South Shetland Islands Abstract / Description: A declining ... two sites in the South Shetland Islands (Subarea 48.1), is analyzed by a nested ANOVA and demonstrated ... , King George/25 de Mayo I., over a period of eight years from 1983 to 1990 and in waters around Half ... sampling by this method did not utilize a consistent amount of effort between years, the analysis made use ... WG-FSA-90/14 A DECLINING TREND IN THE ABUNDANCE OF ... NOTOTHENIA ROSSII MARMORATA AND NOTOTHENIA GIBBERIFRONS OBSERVED IN FJORDS IN TWO SITES IN THE SOUTH ... of Notothenia rossii marmorata and Notothenia gibberifrons in fjords in two sites in the South ... l'exploitation commerciale dans cette region depuis le debut des annees 80. * Instituto Anmrtico Argentino ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 263–274 : Auteur(s): Barrera-Oro, E. and E. Marschoff
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Distribution of the Soviet krill fishing fleet in the South Orkneys area (Subarea 48.2) during 1989/90
48.2) during 1989/90 Abstract / Description: The results of an analysis of haul-by-haul catch ... statistics from the Soviet krill fishing fleet during the 1989/90 season (sample of 3 614 hauls for the ... period from 1 November 1989 to 12 June 1990) are presented. During the season, fishing vessels worked one ... 11-15 November 16-20 November 21-25 November 26-30 November Number of Vessels 2 2 2 ... statistics from the Soviet krill fishing fleet during the 1989/90 season (sample of 3 614 hauls for the ... one fishing ground off the northwestern tip of Coronation Island. CPUE showed variability with a ... temporada 1989/90 (muestra compuesta de 3 614 lances durante el periodo del 1" de noviembre de 1989 a1 12 ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 51–62 : Auteur(s): Sushin, V.A
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Validation of sink rates of longlines measured using two different methods
Paper Title: Validation of sink rates of longlines measured using two different methods Abstract ... / Description: Sink rates of integrated weight longlines (lines with 50 g.m –1 lead integrated into two strands ... of the ground line – IW-50 lines) were measured during commercial fishing operations using two ... 0.239 ± 0.016 m.s–1 to 20 m and were thus 30% slower than those measured to 20 m (Table 1). This ... , the sink rates to target depths of 2 and 20 m differed signifi cantly by 30% (Table 1). As the ... deployment of an instrument about 30 s before it passed through the setting chute. The observer positioned ... homogeneity were passed. For comparisons of more than one group Tukey’s All Pairwise Multiple Comparisons ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 179–187 : Auteur(s): Wienecke, B. and G. Robertson
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1989/90 stock status and TAC assessment for Champsocephalus gunnari in Subarea 48.3 (South Georgia)
Paper Title: 1989/90 stock status and TAC assessment for Champsocephalus gunnari in Subarea 48.3 ... (South Georgia) Abstract / Description: The 1989/90 stock status and TAC assessment for Champsocephalus ... ) using standardized fishing effort. For the beginning of the 1989/90 fishing season, the stock was ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 15–27 : Auteur(s): Frolkina, Zh.A. and P. Gasyukov
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Demographic characteristics of the Adélie penguin population on Béchervaise Island after 12 years of study
after 12 years of study Abstract / Description: Demographic parameters (age-specific survival rates ... eastern Antarctica after 12 years of monitoring under the CCAMLR Ecosystem Monitoring Program (CEMP). A ... (86.2%) was used for all birds aged 1 year and older. This mean value was employed to avoid the bias ... 85 11 90 0. 80 19 93 / 94 35 91 17 11 18 16 1. 06 19 94 / 95 39 93 ... 63 18 80 72 0 0. 38 19 99 / 00 37 31 18 36 99 0 0. 54 20 00 / 01 35 ... 86 .8 2 19 96 / 97 23 1 20 8 90 .0 3 19 97 / 98 20 8 19 9 95 .7 ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 53–74 : Auteur(s): Clarke, J., L.M. Emmerson, A. Townsend and K.R. Kerry
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Fishing ground selection in the Antarctic krill fishery: trends in patterns across years, seasons and nations
) within Subareas 48.1, 48.2 and 48.3, including the pelagic SSMUs, only one-third were identified as major ... years, seasons and nations Abstract / Description: Patterns of fishing ground selection were ... remained relatively constant in Subareas 48.2 (March–May) and 48.3 (June–August). In 25 years of krill ... Science, 3: 13–30. Hewitt, R.P., D.A. Demer and J.H. Emery. 2003. An eight-year cycle in krill biomass ... ig ur e 3 80/81 81/82 82/83 83/84 84/85 85/86 86/87 87/88 88/89 89/90 90/91 91/92 92 ... seasons and calendar years: CCAMLR fishing seasons start on 1 December and end on 30 November. For ... 1995/96. If the years are simply expressed as a single year, e.g. 1996, then these refer to calendar ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 117–141 : Auteur(s): Kawaguchi, S., S. Nicol, K. Taki and M. Naganobu
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Catch per unit effort (CPUE) data from the early years of commercail krill fishing operations in the Atlantic sector of the Antarctic
Paper Title: Catch per unit effort (CPUE) data from the early years of commercail krill fishing ... the period 1975/76 to 1987/88. Comparisons are carried out between subareas in single years, between ... years on a subarea and area basis, and between oceanic and shelf regions. Results show that the CPUE may ... differ between subareas, years and shelf/oceanic regions. Obviously, a consistent pattern of CPUE values ... published results, however, that this year was one of the poorest krill years around South Georgia (Bonner ... and for different years (a to g). (e) Season 1984185 12 10 15 20 25 30 35 40 45 50 55 60 65 ... hours for the split-year (1 July to 30 June); (iii) mean monthly catch/hour for the split-year ... Georgia). MATERIAL AND METHODS Year 1975/76 1976/77 1977/78 1978/79 1979/80 1980/81 1981/82 ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 31–50 : Auteur(s): Siegel, V., V. Sushin and U. Damm
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Target strengths of krill at 136 and 20 kHz
Paper Title: Target strengths of krill at 136 and 20 kHz Abstract / Description: Estimation of ... the mean single-krill target strengths range from-71 to-77 dB at 20 kHz. Trawl hydroacoustic method ... -75.7 53.7 4.9 1.1 16:20 1.3 -74.3 -75.4 53.9 3.9 1.19 20:30 0.14 -77.5 -69.0 54.2 5.7 1.23 Maude ... ) 0.72 Method 150 % 24 21 18 15 I2 . 9 6 3 0 10 20 30 40- 50 Figure 1 ... composition. Elephant Island area. January, 1985. 151 30 20 10 o % MM \. i ,~, Figure 3 ... . Krilllength composition. Bouvet Island area. December, 1979. 30 % 20 10 o 30 34 33 42 46 50 Figure ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 141–157 : Auteur(s): Kasatkina, S.M.
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A stock assessment model of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea Region incorporating multi-year mark-recapture data
Sea Region incorporating multi-year mark-recapture data Abstract / Description: An exploratory ... hence a multi-year mark-recapture tagging program was initiated by New Zealand fishing vessels in 2001 ... model was developed for Antarctic toothfish in the Ross Sea region that incorporates multi-year release ... of tagged fish and subsequent multi-year data of recapture of tagged fish in conjunction with fishery ... 000 Antarctic toothfish from the RSR have been aged each year since 1998, assuming that one ... north fishery selectivity 10 20 30 40 50 Age Age Age ... Age Age Age 10 20 30 40 50 10 20 ... . _______________________________________________________________ 1 The CCAMLR fishing season starts on 1 December and ends on 30 November in the following year ...
Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 39–62 : Auteur(s): Mormede, S., A. Dunn and S.M. Hanchet