Resultados de la búsqueda
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Multiyear changes in distribution and abundance of Salpa thompsoni in the Western Antarctic Peninsula region
characterized by a circumpolar distribution and its appearance is clearly associated with the occurrence of the ... productivity and high water temperature. In recent years the expansion of distribution range of this ... analyses, coupled with environmental data, obtained both during sampling and from satellite data, allowed ... to prove that the distribution of salps was significantly correlated with water temperature and ...
Meeting Document : WG-EMM-16/75 : Autor(es): A. Panasiuk, A. Słomska, J. Wawrzynek, M. Konik and A. Weydmann
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Results from the groundfish survey conducted in CCAMLR Subarea 48.3 in January/February 2011
between the 27th January and 6th February 2011. 87 random hauls were completed, with good coverage across ... the shelf. Catch-weighted length frequencies of mackerel icefish indicated that 3+ sized fish ... mean biomass of 49,353 tonnes was estimated for mackerel icefish, with a lower 1-sided 95% CL of 31,373 ... tonnes. Euphausiidae was the dominant prey item in the mackerel icefish diet with increased dietary ...
Meeting Document : WG-FSA-11/29 : Autor(es): J. Brown, S. Gregory, K. Brigden, R. Benedet, O. Hogg, P. Brewin and L. Featherstone (United Kingdom)
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Oceanography of the South Georgia and South Orkney Islands regions using high-resolution models
the results of preliminary analyses. The models are regional applications of NEMO with a ~3 km ... productive, supporting large colonies of higher predators, and with a history of commercial exploitation ... tides, atmospheric forcing from reanalysis, glacial melt, and with sea ice processes incorporated using ... interactions with predators and availability to fisheries. Insight from such studies will help inform WG-EMM ...
Meeting Document : WG-EMM-17/30 : Autor(es): E. Young, E. Murphy and P. Trathan
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Progress report on the joint research for Dissostichus spp. in Subarea 88.3 by the Republic of Korea and New Zealand in 2018/19
distribution with modes near 70 cm and 150–160cm. Proportions for female maturity stages 1, 2, and 3 were ... similar in research blocks 883_1, 883_3 and 883_4 with the range of 0.1110–0.1571, but much lower in ... research block 883_5, 883_P8, 883_P9 with the range of 0–0.0185. Tagging rate and tag overlap in Subarea ... were observed with stage 1 and 2. Otolith, stomach contents, gonad, fin and muscle samples were ...
Meeting Document : WG-SAM-2019/11 : Autor(es): Delegations of the Republic of Korea and New Zealand
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Advances in the use of airborne aerial survey techniques to estimate krill-eating penguin populations in Area 48
Abstract: In this paper we provide WG-EMM with an update on aerial survey methods used to provide ... over the coming years and we will provide similar updates at regular intervals. Author(s): P.N.Trathan ...
Meeting Document : WG-EMM-14/05 : Autor(es): P.N.Trathan, A.J. Fox, N. Ratcliff and P.T. Fretwell (United Kingdom)
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The effect of temporal variability on power analysis predictions for Adélie penguin CEMP parameters at Béchervaise Island
(5.2 – 6.7%). For example, with a 10 year monitoring program it is possible to detect fixed increases ... or decreases larger than 2% each year with more than 80% power. Increasing the duration of the ... another and it has major ramifications on power estimates. Increasing the variability associated with ... results based on occupied nest counts with increasing levels of temporal variability (% CV) are applicable ...
Meeting Document : WG-EMM-03/49 : Autor(es): L.M. Emmerson and C. Southwell (Australia)
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Propuesta para la gestión del material de referencia científica para fundamentar las discusiones en marcha de la Comisión
ongoing discussions over many years. Much reference material arising from Working Group discussions is ... Members and needed for ongoing discussions over many years. In both cases, there is currently no suitable ... agreed to place MPA planning reference documents on the CCAMLR web site with Members Only access, but the ...
Meeting Document : SC-CAMLR-XXXIV/01 : Autor(es): Delegation of Australia
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Seabird and longline interactions: effects of a bird-scaring streamer line and line shooter on the incidental capture of northern fulmars Fulmarus glacialis
shooter alone. Longlines set with the line shooter reached 3 m depth 15% faster then lines set without the ... baits to fulmars and the catch rates of fish target species among lines set with either of these ... was caught when the bird-scaring line was used in combination with the line shooter. In contrast, 32 ... fulmars were caught in sets with no mitigation device and thirteen in sets with the line shooter alone ...
Meeting Document : WG-FSA-01/78 : Autor(es): S. Løkkeborg (Norway) and G. Robertson (Australia)
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To what extent do type C killer whales (Orcinus orca) feed on Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea, Antarctica?
toothfish with silverfish and other prey shows that toothfish represent a high-energy food resource of much ... higher quality than other potential prey in the Ross Sea region; (3) densities of other alternative ... killer whales with toothfish in their mouths in McMurdo Sound have declined since 2000, consistent with ... killer whales in the Ross Sea can routinely dive to 200-400 m, with a maximum of >700m. This is deep ...
Meeting Document : WG-EMM-13/29 : Autor(es): L. Torres, M.H. Pinkerton (New Zealand), R. Pitman, J. Durban (USA) and R. Eisert (New Zealand)
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Investigations of intensity of krill drift near South Georgia Island
island is supposed to take place not less than 2-3 times per year. Peculiarities of accumulation and ... Abstract: Calculation of drift’s speed (transport with current) of Antarctic krill along the ... g m-3. Total amount of krill immigration on island’s shelf (in above indicated limits) were examined ...
Meeting Document : WG-CEMP-92/32 : Autor(es): V.V. Popkov (Russian Federation)