Search results
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Comparison of long-term trends in abundance, recruitment and reproductive success of five populations of Pygoscelis penguins in the South Shetland Islands, Antarctica
Abstract: Responses of predator populations to environmental variability in the Antarctic have ... tended to exhibit site- and species-specific differences owing to variation in geographic settings and ... responses of sympatric congeners to recent changes in their Antarctic ecosystem. We used simple linear ... regression and correlation analyses to detect and compare trends in indices of population abundance ...
Meeting Document : WG-EMM-06/21 : Author(s): J.T. Hinke (USA), K. Salwicka (Poland), S.G. Trivelpiece, G.M. Watters and W.Z. Trivelpiece (USA)
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Report on the effectiveness of integrated weight (fast sinking) longlines in reducing the mortality of white-chinned petrels and sooty shearwaters in autoline longline fisheries
Abstract: The difference in the number of white-chinned petrels (Procellaria aequinoctialis) and ... examined in the New Zealand ling (Genypterus blacodes) autoline longline fishery. The experiments were ... conducted in the seabird breeding seasons (October/November) of 2002 and 2003 on F/V’s Janas and Avro ... the seabird species occurring in Divisions and Subareas where night setting exemption currently ...
Meeting Document : WG-FSA-04/72 : Author(s): G. Robertson (Australia), N. Smith (New Zealand), B. Wienecke and S. Candy (Australia)
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Trends in bird and seal populations as indicators of a system shift in the Southern Ocean
over the past 50 years in the southern Indian Ocean, the increase starting in mid 1960s and stabilizing ... in mid 1980s, being particularly important in the in the sub-Antarctic sector. At the same time with ... . These changes, together with the indications of a simultaneous decrease in secondary production in sub ... occurred in the Indian Ocean part of the Southern Ocean. This shift illustrates the high sensitivity of ...
Meeting Document : WG-EMM-03/53 : Author(s): H. Weimerskirch, P. Inchausti, C. Guinet and C. Barbraud (France)
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Age distribution of breeding female Antarctic fur seals in relation to changes in population growth rate
Georgia, in 1988 was compared with the age distribution of a sample obtained in 1971-1973. The mean age in ... 1971-1973 was 7.41 (SE = 0.26) years and in 1988 it was 6.93 (SE = 0.20) years. After correction for ... age-dependent arrival time at the pupping beach in 1988, the mean age was 6.22 (SE = 0.14 years ... ), which was significantly lower than in 1971-1973. Indicators of population size suggested that population ...
Meeting Document : WG-CEMP-91/21 : Author(s): I.L. Boyd, N.J. Lunn, P. Rothery and J.P. Croxall (United Kingdom)
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Research plan for the exploratory longline fishery for Dissostichus spp. in 2015/16 in Division 58.4.4
fishing, CCAMLR decided to close the fishery in 2002 in division 58.4.4. Since 2008 only one vessel ... , Shinsei maru No. 3, had conducted research fishing in accordance with a research plan submitted under CM ... 24-01. In 2014, WG-FSA agreed research fishing conducted in the research blocks C and D by two ... account the remarks made during the WG-FSA 2014. In SSRU 58.4.4D, tag recaptures are insufficient (the ...
Meeting Document : WG-FSA-15/67 : Author(s): A. Rélot-Stirnemann (France)
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Revised continuation proposal of multi-Member research on Patagonian toothfish (Dissostichus eleginoides) exploratory fishery in 2018/19 in Division 58.4.3a by France and Japan
Patagonian toothfish (D. eleginoides) in the Division 58.4.3a during the next fishing seasons from 2017/18 ... onwards, using standardized longline gear and established observation and tagging programs. In this ... Division, research fishing has been conducted by France and Japan since 2012 in the research block by three ... ” (France). The first Franco-Japanese exploratory longline fishery research plan for Dissostichus spp. in ...
Meeting Document : WG-FSA-18/61 : Author(s): Delegations of France and Japan
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Annual variation in the timing of reproduction in Antarctic fur seals (Arctocephalus gazella) at Bird Island, South Georgia
established breeding territories on the beaches in anticipation of the arrival of the cows. Male arrival ... , which is less synchronous within years than female arrival, was significantly later in 1987 than in any ... significantly later in 1984 and 1987 than in 1983, 1985 or 1986. The late arrival of both males and females in ... arrival and reduced fecundity of females in 1984 is attributed to markedly reduced food availability ...
Meeting Document : WG-CEMP-90/39 : Author(s): C.D. Duck (United Kingdom)
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CCAMLR’s role in combating IUU fishing in the Southern Ocean and globally
Abstract: Abstract The persistence of IUU fishing in the CCAMLR Area undermines the intrinsic ... priority for CCAMLR as an integral part of the Antarctic Treaty System. Thus far, in spite of the number of ... can take individually and collectively to eliminate IUU fishing in the CCAMLR Area. An important step ... in the development of global instruments to tackle this problem is the Agreement on Port State ...
Meeting Document : CCAMLR-XXIX/BG/20 : Author(s): ASOC Observer
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Overview and update of Australia’s scientific tagging program in the Patagonian toothfish (Dissostichus eleginoides) fishery in the vicinity of Heard and McDonald Islands (Division 58.5.2)
Abstract: Australia has conducted a scientific tagging program in the Dissostichus eleginoides ... fishery in 58.5.2 since the 1997/98 season. This program has yielded data which has assisted with ... . Tagging effort and recaptures are very concentrated in a relatively small area of this species’ habitat in ... this Division. Furthermore, as toothfish appear to have complex patterns of movement in space and time ...
Meeting Document : WG-FSA-07/48 Rev. 1 : Author(s): D.C. Welsford, T. Lamb and G.B. Nowara (Australia)
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White-chinned petrel incidental mortality event in the Subarea 48.3 Patagonian toothfish fishery during the season extension period in the 2013/14 season
Abstract: During the 2014 experimental season extension in CCAMLR sub-Area 48.3 a single line ... caught 74 white chinned petrels, which is the most significant incidental mortality event in the fishery ... seabird mortality in the fishery undertaken. The mortality event occurred on a “Spanish” system longline ... that was partly set after Nautical Twilight (dawn), so was in breach of CM25-02. Although the line was ...
Meeting Document : WG-FSA-14/28 : Author(s): M.A Collins, M. Soffker, C. Darby, K. Ross and P.N. Trathan (United Kingdom)