Search results
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Diet variability and reproductive performance of macaroni penguins (Eudyptes chrysolophus) at Bird Island, South Georgia
(Euphausia superba) was the main prey in 17 out of 22 years. Amphipods (Themisto gaudichaudii) were the main ... . and E. frigida) in 2000. There was no clearly dominant prey group in 1999. The five-year average proportion ... energy content of individual meals was often above average in years when the diets contained fewer ... euphausiids, but fledging mass was always below average in these years. Although macaroni penguins are able ...
Meeting Document : WG-EMM-12/17 : Author(s): C.M. Waluda, S.L. Hill, H.J. Peat and P.N. Trathan (United Kingdom)
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Long term variability in the diet and reproductive performance of penguins at Bird Island, South Georgia
Abstract: Inter-annual variability in diet during crèche (December to February) over 22 years ... present in 89 % of samples and were the main prey (> 50 % by mass) in 10 years of the study. Antarctic ... and were the main prey in 12 years, with Champsocephalus gunnari and Lepidonotothen larseni the most ... Inter-annual variability in diet during crèche (December to February) over 22 years (1989 ...
Meeting Document : WG-EMM-17/P02 : Author(s): C.M. Waluda, S.L. Hill, H.J. Peat and P.N. Trathan
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Analysis of krill fishery operations in Subarea 48.1: spatial-time distribution of CPUE and fishing efforts
Abstract: In previous years we revealed that period 2006-2011 is characterized by the highest ... values of standardized CPUE indices in the Subarea 48.1 for the last 25 years. We continue to investigate ... methods. Our investigation shows how fishery operated by years and month in each SSMUs with special ... In previous years we revealed that period 2006-2011 is characterized by the highest values ...
Meeting Document : WG-EMM-14/21 : Author(s): S. Kasatkina and P. Gasyukov (Russia)
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Progress report of the CEMP Special Fund camera network in Subarea 48.1
extend the camera network with 3 new installations. Author(s): J. Hinke, G. Watters, M. Santos, M ... Network in Subarea 48.1”. The project was initiated with support from the CEMP Special Fund in 2014/15 ... . The project is now fully operational. In 2016/17 data were recovered from 50 cameras covering 3 ... summaries indicate variation in phenological timing within species across sites with relatively high ...
Meeting Document : WG-EMM-17/16 Rev. 1 : Author(s): J. Hinke, G. Watters, M. Santos, M. Korczak-Abshire, G. Milinevsky, V. Lytvynov, A. Barbosa, C. Southwell and L. Emmerson
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Absence of haematozoa in breeding macaroni Eudyptes chrysolophus and rockhopper E. chrysocome penguins at Marion Island
eastern rock-hopper penguins E. chrysocome filholi at subantarctic Marion Island between October ... eastern rock-hopper penguins E. chrysocome filholi at subantarctic Marion Island between October ...
Meeting Document : WG-EMM-03/19 : Author(s): A. Schultz and S.L. Petersen (South Africa)
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Estimating toothfish biomass in Subarea 48.3 using local depletions
as a means of estimating toothfish density at South Georgia. Over the four years 2000-2003, we found 25 areas ... of 12’ by 12’ where there had been forty or more hauls in any particular year. There were 62 individual ... over the four years and multiplying by the total fishable area in Subarea 48.3 we arrived ... of estimating toothfish density at South Georgia. Over the four years 2000-2003, we found 25 areas of 12’ by 12 ...
Meeting Document : WG-FSA-SAM-04/18 : Author(s): Pearce, J., Agnew, D.
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An inter-laboratory comparison of ages estimated for Dissostichus eleginoides using otoliths
read the sections similarly, with 84.7% of the estimates falling within two years or less of each other ... differences in the criteria used to interpret the first few years of age, possibly in identification ... read the sections similarly, with 84.7% of the estimates falling within two years or less of each other ... differences in the criteria used to interpret the first few years of age, possibly in identification ...
Meeting Document : WG-FSA-99/56 : Author(s): J. Ashford (United Kingdom) and P. Horn (New Zealand)
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CEMP cameras data validation experiment at the Galindez Island gentoo penguin (Pygoscelis papua) colonies
three monitoring sites GBW, GPP1, and GPP2, simultaneously with automatic time-lapse cameras picturing ... . The results of visual observations have been compared with data from camera pictures, which registered ... preliminary results exhibit the reasonable correspondence within 0-3 days between visual observations and time ... -lapse camera data for both seasons. The standard deviation for each event varies from ±1 to ±3 days for ...
Meeting Document : WG-EMM-2019/59 : Author(s): P. Khoetsky, A. Dzhulai, V. Smagol, G. Milinevsky, I. Dykyy, A. Simon, M. Telipska, E. Dykyi, I. Parnikoza and L.Pshenichnov
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Estimation of tag-loss rates for tagged fish in the Patagonian toothfish (Dissostichus eleginoides) fisheries at Heard Island and McDonald Islands in Division 58.5.2
% of all double-tagged fish retain at least one tag after one year, and 80.2% after ten years ... at liberty of 6 years, as l = 0.014 for longline and l = 0.007 for trawl. However, this single tag-loss rate ... fish retain at least one tag after one year, and 80.2% after ten years. The parameter of annual tag ... -loss rate in CASAL’s single-tag model was approximated, for a maximum time at liberty of 6 years ...
Meeting Document : WG-FSA-17/21 : Author(s): P. Ziegler
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Characterisation of the toothfish fishery in the Ross Sea region (Subarea 88.1 and SSRUs 88.2A–B) through 2018/19
years; some fish were recaptured after 16 years at liberty. Recaptures were higher in 2019, likely ... , becoming gradually more male. The number of fish recaptured in 2019 was greater than in previous years ... ; some fish were recaptured after 16 years at liberty. Recaptures were higher in 2019, likely a result ...
Meeting Document : WG-FSA-2019/07 : Author(s): J. Devine, S. Parker and A. Dunn