Resultados de la búsqueda
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Comparisons in diet between diurnal and overnight foraging chinstrap penguins at Seal Island
. Diet mass estimated from digested and intact stomach contents indicates that krill were predominant in ... , which were comparable with daily average energy requirements calculated for a diurnal forager (4853 kJ ... diet and those in the foraging areas indicates that diurnal foragers took krill in the inshore region ... , where krill tended to be smaller and less matured. On the other hand, overnight foragers took krill in ...
Meeting Document : WG-EMM-96/55 : Autor(es): Hayashi, T., Ichii, T., Cameron, M.F., Miura, A., Jansen, J.K., Bengtson, J.L., Boveng, P.
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Annual migrations of pelagic fish stocks into a krill hotspot
acoustic data suggest that they may form high density schools during daytime, that could not be separated ... frequency response may be similar to that of krill at the commonly used frequencies of 38 and 120 kHz ... , utilized both by central place foragers and the industry. We do not have trawl samples overlapping with the ... acoustic data, but the behaviour displayed suggests that the fish are planktivorous. Furthermore, the ...
Meeting Document : WG-EMM-2019/33 : Autor(es): T. Klevjer
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Preliminary analyses of data collected during experimental phases of the 1994/95 and 1995/96 Antarctic crab fishing seasons
crab movement and suggested that depletion estimators will not be appropriate tools for estimating ... crab fishery were analyzed with generalized additive models and depletion estimators. Results from the ... generalized additive models show that the density of fishable P. spinosissima is highest off the northern ... coast of South Georgia and at depths between about 100 and 300 fathoms. The Phase 1 results suggest that ...
Meeting Document : WG-FSA-96/34 : Autor(es): Watters, G.
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Distribution and population structure of Dissostichus eleginoides and D. mawsoni on BANZARE Bank (CCAMLR Division 58.4.3b), Indian Ocean, Antarctic
mainly caught in the deeper slope >1500 m. The separation of the two species by depths may be related ... species. The mean total length (TL) of females was significantly larger than that of males for both ... species. The proportion of males to the total adults decreased significantly with the depths with gradual ... slope for both species. Male D. mawsoni showed a significant correlation between depth and the TL with ...
Meeting Document : WG-FSA-10/47 : Autor(es): K. Taki, M. Kiyota, T. Ichii and T. Iwami (Japan)
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Distribution and population structure of Dissostichus eleginoides and D. mawsoni on BANZARE Bank (CCAMLR Division 58.4.3b), Indian Ocean, Antarctic
mainly caught in the deeper slope >1500 m. The separation of the two species by depths may be related ... species. The mean total length (TL) of females was significantly larger than that of males for both ... species. The proportion of males to the total adults decreased significantly with the depths with gradual ... slope for both species. Male D. mawsoni showed a significant correlation between depth and the TL with ...
Meeting Document : WG-SAM-10/16 : Autor(es): K. Taki, M. Kiyota, T. Ichii and T. Iwami (Japan)
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Descriptive analysis of the Antarctic toothfish (Dissostichus mawsoni) tagging scheme in the Ross Sea for the years 1997/98 to 2003/04
since 2001 is presented for the first time. Tag-release and tag-recapture data are presented for both ... been in the same proportion as the catch by area. However, recapture rates have tended to be higher in ... released. The mean size of tagged Antarctic toothfish has increased since 2001, but is still smaller than ... without significant damage to fish, and there appears to be a trade-off between maximising size of ...
Meeting Document : WG-FSA-SAM-05/10 : Autor(es): A. Dunn, S.M. Hanchet and K. Maxwell (New Zealand)
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A proposal to review and strengthen the CCAMLR System of Inspection
immediately stop a CCAMLR Contracting Party-flagged vessel that is found to be in breach of a CCAMLR ... of efforts to eliminate IUU fishing, Australia proposes that the Commission review its System of ... measures, especially those adopted to combat IUU fishing. While much of the System's provisions remain ... appropriate for most circumstances, there are some aspects where improvements could be considered, including ...
Meeting Document : CCAMLR-XXVI/29 Rev. 1 : Autor(es): Delegation of Australia
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Assessment of Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.4
the data weighting method revised to be consistent with those applied in other CCAMLR assessment model ... . eleginoides) in Subarea 48.4. The assessment data are updated with the observations for the 2017/18 season and ... fits. Stock projections indicate that the stock was at 67% of B 0 in 2018/19 and that a yield of 27 ... tonnes in 2019/20 and 2020/21 is consistent with the application of the CCAMLR harvest control rule ...
Meeting Document : WG-FSA-2019/29 : Autor(es): T. Earl and E. MacLeod
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Recommendations from a cross-sector workshop on krill fishing and conservation in the Scotia Sea and Antarctic Peninsula region
management of the krill fishery that minimises the risk of the fishery negatively impacting ecosystem health ... . This accord could be strengthened by articulating a clear research and development strategy to support ...
Meeting Document : WG-EMM-14/12 : Autor(es): S. Hill, R. Cavanagh, R. Downie, C. Knowland and S. Grant (United Kingdom)
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RECENT POPULATION ESTIMATES AND TRENDS IN NUMBERS OF ALBATROSSES AND GIANT PETRELS BREEDING AT THE SUB-ANTARCTIC PRINCE EDWARD ISLANDS
that has since reversed. Numbers of grey-headed albatrosses Thalassarche chrysostoma on Marion Island ... have remained stable, whereas the population on Prince Edward Island decreased by 20% from 2001 to 2008 ... (3% per year). The estimate of Indian yellow-nosed albatrosses T. carteri at Prince Edward Island was ... similar in 2001 and 2008. Counts of both sooty albatrosses Phoebetria spp. were substantially higher at ...
Meeting Document : WG-EMM-10/P4 : Autor(es): P.G. Ryan, M.G.W. Jones, B.M. Dyer, L. Upfold and R.J.M. Crawford