Search results
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Unhappy feet: the reduction of Adélie and chinstrap penguin populations in the West Antarctic Peninsula/Scotia Sea
penguin populations have declined more than 50% during the last 30 years at study colonies in the South ... populations have declined more than 50% during the last 30 years at study colonies in the South Shetland ...
Meeting Document : CCAMLR-XXX/BG/21 : Author(s): Submitted by ASOC
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Simulations to evaluate model performance for Antarctic toothfish stock assessment in the Amundsen Sea region
years to predict progress towards a robust assessment model using the two-area model. The models showed ... for 2018, as recommended by Scientific Committee in 2016. Author(s): S. Mormede and S. Parker Title ... years to predict progress towards a robust assessment model using the two-area model. The models showed ... for 2018, as recommended by Scientific Committee in 2016. ...
Meeting Document : WG-SAM-17/40 : Author(s): S. Mormede and S. Parker
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The Patagonian toothfish (Dissostichus eleginoides) fishery in the Kerguelen Islands (Indian Ocean sector of the Southern Ocean)
eleginoides) have been fished in the Kerguelen Islands zone for 20 years, firstly with trawlers and more ... for 20 years, firstly with trawlers and more recently with longliners. This is the oldest fishery ... in the Kerguelen Islands zone for 20 years, firstly with trawlers and more recently with longliners ... ‘Kerpêche’ for trawlers (split- years – 1 July to 30 June – 1979/80 to 2000/01) and in Excel tables ... during the year was studied to determine the spawning period. Mature animals (stages 3 to 5) only were ... between the two years is impossible, since the samples are not orthogonal (the number of animals caught ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 1–25 : Author(s): Lord, C., G. Duhamel and P. Pruvost
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Fishery Report 2016: Exploratory fishery for Dissostichus spp. in Division 58.4.3a
to this report is shaded. Throughout this report the CCAMLR fishing season is represented by the year in which ... that season ended, e.g. 2015 represents the 2014/15 CCAMLR fishing season (from 1 December 2014 to 30 ... with a renewed interest in this fishery, the fishery was reclassified as exploratory in 2000. That year ... of these data-poor fisheries has been a major focus of attention in CCAMLR in recent years after ...
Document : Site Section: Publications
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Comparison of two methods to assess fish losses due to depredation by killer whales and sperm whales on demersal longlines
aimed at providing two indirect methods of assessment of depredated biomass over an 11-year period (2003 ... of depredated biomass over an 11-year period (2003 to 2013), accounting for spatial variations of depredation ... biomass over an 11-year period (2003 to 2013), accounting for spatial variations of depredation levels ... years. This is the case for many demersal longline fisheries at high latitudes on both hemispheres ... fishery operates year-round, but within the Crozet Islands EEZ, 35% of fishing activity occurs ... 568 511 1 679 ± 74 j,k,l 39.2 ± 2.7 105 26 30 683 633 2 568 ± 82 , , ,i j k llanded ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 1–14 : Author(s): Gasco, N., P. Tixier, G. Duhamel and C. Guinet
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Distribution and some biological features of icefish (Champsocephalus gunnari) at different life cycle stages in the South Georgia subarea
Abstract: The results of icefish ecology were summarized for the period of above 20 years ... The results of icefish ecology were summarized for the period of above 20 years of South Georgia ... that the life mode changed from pelagic one occurring at early life stages, to near-bottom- pelagic one after 20 ... from pelagic one occurring at early life stages, to near-bottom - pelagic one after 20 cm length ...
Meeting Document : WG-FSA-99/65 : Author(s): Zh.A. Frolkina (Russia)
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Volume 8: CCAMLR. 1996. Statistical Bulletin, Vol. 8 (1986–1995). CCAMLR, Hobart, Australia.
1 July to 30 June. Split-years are shown for instance as 1989/90. 1.5 Some tables describe data ... 1986 to 1995. The Bulletin is produced to cover a lO-year time period of the fishery to provide ... the maximum chronological information per volume. Figures in Section D cover a 5-year time span. Some ... and a list of nationality codes is given in Table 1.2. 1.4 The annual period used is the split-year ...
Document : Site Section: Publications
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Fatty acid signature analysis from the milk of Antarctic fur seals and southern elephant seals from South Georgia: implications for diet determination
fur seals (Arctocephalus gazella) in 3 consecutive years, from 1991- 1993 (n=72) and from Southern ... acids 16:4 n1, 18:2 n6, 18:4 n3, 18:4 n1 and 20:5 n3 and by higher levels of 18:0, 18:1 n9/ n11 (i.e. 18 ... :1 n9 co- eluting with 18:1 n11) and 20:1 n9. Fatty acid signatures from the milk of Antarctic fur seals ... (Arctocephalus gazella) in 3 consecutive years, from 1991- 1993 (n=72) and from Southern elephant seals (Mirounga ...
Meeting Document : WG-EMM-99/44 : Author(s): D.J. Brown, I.L. Boyd, G.C. Cripps and P.J. Butler (United Kingdom)
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Fishery Report 2015: Exploratory fishery for Dissostichus spp. in Division 58.4.3a
to this report is shaded. Throughout this report the CCAMLR fishing season is represented by the year in which ... that season ended, e.g. 2015 represents the 2014/15 CCAMLR fishing season (from 1 December 2014 to 30 ... with a renewed interest in this fishery, the fishery was reclassified as exploratory in 2000. That year ... in CCAMLR in recent years after the acknowledgement that commercial fishing by itself had resulted in too ...
Document : Site Section: Publications
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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 ... the mean single-krill target strengths range from-71 to-77 dB at 20 kHz. Trawl hydroacoustic method ... Target strengths of krill at 136 and 20 kHz ... lengths from 43 to 47 mm the mean single-krill target strengths range from -71 to -77 dB at 20 kHz. Trawl ... : • frequency 20 kHz: aluminium, diameter 120 mm, TS = -30.92 dB • frequency 30 kHz: brass, diameter 100 mm, TS ... :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 Rise area (February ... Encaged krill 136 TS = 0.39L - 86.50 (4) 0.87 Encaged krill 20 TS = 1.27L - 131.30 (5) 0.84 Trawl ... % 24 21 18 15 I2 . 9 6 3 0 10 20 30 40- 50 Figure 1. Krilllength composition. South ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 141–157 : Author(s): Kasatkina, S.M.