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1. Improving estimates of Adélie penguin breeding population size: developing factors to adjust one-off population counts for availability bias

   presented for the collection and development of data to adjust counts of Adélie penguins made at any time in ... point one week after the peak in egg laying, consistent with Standard Method A3 of the CCAMLR Ecosystem ... illustrated using data collected at the Béchervaise Island CEMP site in 2007/08. Estimates of the breeding ... methods such as mark-recapture of individually tagged birds. Given the paucity of adjustment data in the ... at any time in the breeding season to an estimate of the breeding population. The development of ... reference point one week after the peak in egg laying, consistent with Standard Method A3 of the CCAMLR ... method is illustrated using data collected at the Béchervaise Island CEMP site in 2007/08. Estimates of ... paucity of adjustment data in the literature, further collection of availability adjustment data across ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 229–241 : Автор(ы): Southwell, C., J. McKinlay, L. Emmerson, R. Trebilco and K. Newbery

2. Trophic study of Ross Sea Antarctic toothfish (Dissostichus mawsoni) using carbon and nitrogen stable isotopes

   variables in explaining the variation of δ15N and δ13C. Positive relationships between length and δ15N ... and Terra Nova Bay Trench. In contrast, all of the four potential prey species caught in the Northern ... range of 7 ‰ (9–16 ‰) in δ15N, which is equivalent to two trophic steps. All fish, except Antimora ... implies that the diet of all species sampled was variable, or that individual species were eating a ...

   Meeting Document : WG-EMM-08/27 : Автор(ы): S.J. Bury, M.H. Pinkerton, D.R. Thompson, S. Hanchet, J. Brown and I. Vorster (New Zealand)

3. Ideal survey patterns: an example of using a simulated world

   relative abundance of the population? How well can this method detect changes in the abundance of the ... strength of the simulation method in answering these questions and in exploring the efficacy of survey ... criteria. The shot selection criteria can be either that locations of known good quality are preferentially ... selected or that locations are selected at random. The landscape and fishery are simulated in a spatially ...

   Meeting Document : WG-FSA-01/75 : Автор(ы): I.R. Ball and A.J. Constable (Australia)

4. Movement and growth of tagged Dissostichus eleginoides around South Georgia and Shag Rocks (Subarea 48.3)

   and there have been no reported recaptures of these fish tagged at South Georgia or elsewhere in the ... Rocks (Subarea 48.3) Abstract / Description:  In 2000 the UK started a Patagonian toothfish ... (Dissostichus eleginoides) tagging program to investigate the spatial and temporal movement of fish and to ... there is greatest fishing activity. Most of the fish recaptured to date were tagged and released during ... Assessment Group (MRAG) Ltd in London. To increase the likelihood of recaptured tags being reported and to ... minimise the potential for non-reporting of recaptured tags, posters, in English and Spanish ... -scale of this process. Tagging in the experimental and commercial fi sheries around South Georgia ... a concen- tration of 100 mg Sr/kg fi sh. The needle was in- serted beneath the scales 1–2 cm below ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 101–111 : Автор(ы): Marlow, T.R., D.J. Agnew, M.G. Purves and I. Everson

5. Short note: time series of Drake Passage Oscillation Index (DPOI) from 1952 to 1988

   . A low DPOI less than 10 hPa appeared in 1967 and 1980. Intervals between the years of low DPOI were ... obtaining appropriate data. The total number of monthly data used from 1952 to 1988 was 420. The mean ... differences across the Drake Passage, sea ice cover and chlorophyll-a in the Antarctic Peninsula area during ... westerlies were especially regarded as a key environmental index. Fluctuations in the westerlies across the ...

   Meeting Document : WG-EMM-02/44 : Автор(ы): M. Naganobu and K. Kutsuwada (Japan)

6. Movement and growth of tagged toothfish around South Georgia and Shag Rocks (Subarea 48.3)

   of the fish recaptured to date were tagged and released during the experimental pot fishing in 2000 ... recaptures of these fish tagged at South Georgia or elsewhere in the South Atlantic. Similarly, tags ... Abstract:  In 2000 the UK started a toothfish (Dissostichus eleginoides) tagging programme. The ... aims were to investigate the spatial and temporal movement of fish and to validate growth estimates ...

   Meeting Document : WG-FSA-02/28 : Автор(ы): T.R. Marlow, D.J. Agnew and I. Everson (United Kingdom)

7. Results of trials undertaken around Crozet Island using pots to target Patagonian toothfish

   comparison are not straightforward due to the large number of pot model tested and the large differences in ... Abstract:  Patagonian toothfish (Dissostichus eleginoides) is the target species of a bottom ... longline fishery occurring in the Southern Indian Ocean off Kerguelen and Crozet islands. This fishery is ... exposed to high levels of interactions with cetaceans removing fish from the fishing gear and to ...

   Meeting Document : WG-FSA-10/10 : Автор(ы): N. Gasco, P. Tixier and C. Guinet (France)

8. Spatial distribution of foraging by female Antarctic fur seals

   could eat most of the krill present in some regions where they forage intensively. However, mean ... sites followed the same pattern of travel. There was no detectable difference in this behavior among ... consumption was about one-tenth of the mean density of krill. Author(s):  I.L. Boyd, I.J. Staniland and A.R ... Abstract:  The study tested the hypothesis that the distribution of critical habitat for foraging ...

   Meeting Document : WG-EMM-01/26 : Автор(ы): I.L. Boyd, I.J. Staniland and A.R. Martin (United Kingdom)

9. Temperature-dependent growth of Thysanoessa macrura: inter-annual and spatial variability

   variability in growth rates of highly abundant zooplankton is critical to predict the impact of climate change ... apart to estimate growth rates of one the most euphausiids in the Southern Ocean, Thysanoessa macrura ... of T. macrura may increase in regions exhibiting warming trends, such as the Antarctic Peninsula ... growth. Growth rates of T. macrura varied between years and water masses, ranging from-0.037 mm day-1 in ...

   Meeting Document : WG-EMM-13/39 : Автор(ы): R.M. Driscoll, C.S. Reiss and B.T. Hentschel (USA)

10. Time series of Drake Passage Oscillation Index (DPOI) from 1952 to 2005, Antarctica

    Abstract:  An assessment of the environmental processes influencing variability in the recruitment ... krill recruitment and density in the Antarctic Peninsula area with an environmental factor; strength of ... and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks ... affects the Antarctic marine ecosystem as a whole. Naganobu et al. (1999) had assessed variability in ...

    Meeting Document : WG-EMM-05/17 : Автор(ы): M. Naganobu and K. Kutsuwada (Japan)

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