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Long term variability in the diet and reproductive performance of penguins at Bird Island, South Georgia
and were the main prey in 12 years, with Champsocephalus gunnari and Lepidonotothen larseni the most ... patterns of gentoo penguin diet variability with those of macaroni penguins Eudyptes chrysolophus breeding ... at the same location. Our results suggest that the availability of krill is a key source of diet ... variability for both species, but their diets indicate that gentoo penguins are generalist predators (feeding ...
Meeting Document : WG-EMM-17/P02 : Автор(ы): C.M. Waluda, S.L. Hill, H.J. Peat and P.N. Trathan
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Marine Ecosystem Assessment for the Southern Ocean (MEASO)
happening now and into the future, and what may need to be planned for, in terms of research and management ... . The aim is to have a quantitative assessment that enables managers to achieve consensus in adapting ... compiled in order to determine what can be used to assess status and trends within the Southern Ocean on ... countries have contributed to the data survey, coverage of which can be viewed on the Southern Ocean ...
Meeting Document : SC-CAMLR-XXXVII/BG/22 : Автор(ы): A. Constable, J. Melbourne-Thomas, R. Trebilco and M. Brasier
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Estimates of fish stock biomass around South Georgia in January/February 1985
. gibberifrons and Ps. georgianus were at a level of about 25 – 40% of that of the pristine state. The stocks ... reduction in stock size to 10 – 20% of that estimated before the onset of heavy fishing. In C. gunnari the ... influence. Furthermore it should be noted that it is still not known which proportion of t he juvenile ... . Even though the variance is very high indicating that the estimated stock size may only be corfect to ... composition (fig.6) indicates that with the exception of the early juve- - 6 - niles (age class O and 1 ... - straints, however, stock size is assumed to be very low in comparison to tha t of 141 000 t at the onset ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 1-32 : Автор(ы): Kock, K.-H.
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Summary report of the International Fishers’ Forum – Solving the Incidental Capture of Seabirds in Longline Fisheries
fisheries. Participants committed to undertake a number of activities and report back at a second forum that ... will be held in Hawaii in late 2002. Author(s): CCAMLR Observer (New Zealand) Title: Summary report ...
Meeting Document : SC-CAMLR-XX/BG/19 : Автор(ы): CCAMLR Observer (New Zealand)
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Dive bout of chinstrap penguin at Seal Island, Antarctica
continuously by time-depth recorders from two adults breeding chicks. Their diving behaviour could be split ... individuals among days on which dives are recorded but differed between individuals, suggesting that ...
Meeting Document : WG-CEMP-93/17 : Автор(ы): Y. Mori (Japan)
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Preliminary study on nesting Adélie penguins disturbance by unmanned aerial vehicles
with penguins looking up and around for a few seconds when the UAV was overhead. Similar symptoms of ... measurements should be done in conjunc- tion with the filming, so that the relationship between noise level ... giant petrel colonies must be kept to a minimum, and then only with electric UAVs. It is hoped that ... 700D camera with a 35 mm objective lens. On this basis it was determined that a flight altitude of ... 300–400 AGL allowed images to be taken with a ground sample distance (GSD) resolution of less than 5 ...
Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 1–16 : Автор(ы): Korczak-Abshire, M., A. Kidawa, A. Zmarz, R. Storvold, S.R. Karlsen, M. Rodzewicz, K. Chwedorzewska and A. Znój
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Trends in mean lengths and selectivities for Dissostichus eleginoides taken by longliners in Subarea 48.3
seasons but with no consistent overall trend. The analysis also suggested that the exploitable population ... also that this trend was halted in 2000. A GLM analysis of these data shows that both area and depth ... 1997-1999. The overall picture that emerges is one of variable mean lengths, both within and between ... length distribution. Separately, it is known that the effort distribution is also highly heterogeneous ...
Meeting Document : WG-FSA-01/48 : Автор(ы): G.P. Kirkwood and D.J. Agnew (United Kingdom)
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Notes on the eighth Antarctic survey by the RV Kaiyo Maru, Japan in 1999/2000
Author(s): M. Naganobu, S. Kawaguchi, T. Kameda, Y. Takao and N. Iguchi (Japan) Title: Notes on ...
Meeting Document : WG-EMM-00/55 : Автор(ы): M. Naganobu, S. Kawaguchi, T. Kameda, Y. Takao and N. Iguchi (Japan)
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Proposal for a krill biomass survey for krill monitoring and management in CCAMLR Division 58.4.2-East
January to 25 March 2021. The survey will estimate krill biomass with a view to update the precautionary ... catch limit for krill. A krill observatory mooring system will also be deployed during the survey to ... . Final survey plans will be submitted to SG-ASAM and WG-EMM in 2020. Author(s): S. Kawaguchi, M. Cox, N ...
Meeting Document : WG-EMM-2019/03 : Автор(ы): S. Kawaguchi, M. Cox, N. Kelly, L. Emmerson and D. Welsford
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New possibilities of krill-dependent indicator species monitoring – UAV survey in Subarea 48.1
objective lens. Flights altitude at 350 – 550 m AGL (Above Ground Level) allowed images to be taken with a ... 34.51 km 2. Images were taken with digital SLR Canon 700D, Nikon D5100, Canon T5i 700D with a 35mm ... software. In selected colonies a comparison with the results of measurements taken at the same time from ...
Meeting Document : WG-EMM-17/03 : Автор(ы): M. Korczak-Abshire, A. Zmarz, M. Rodzewicz, R. Storvold, M. Kycko, I. Karsznia, A. Kidawa and K.J. Chwedorzewska
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