Resultados de la búsqueda
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Disentangling the influence of three major threats on the demography of an albatross community
threats on the demography of seabird communities is vital for evidence-based conservation. Using 20 years ... probability and success. In three species (excluding the wandering albatross because of the small population ... Southern Annular Mode (SAM) explained 22.9-40.9% and 22.2-33.4% of the temporal variability in survival and ... % of the variability in survival, with higher survival rates following La Niña events. Habitat ...
Meeting Document : WG-FSA-2019/34 : Autor(es): J.B. Cleeland, D. Pardo, B. Raymond, G.N. Tuck, C.R. McMahon, R.A. Phillips, R. Alderman, M.-A. Lea and M.A. Hindell
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IMPLEMENTATION OF CONSERVATION MEASURE 10-08 (2006) SCHEME TO PROMOTE COMPLIANCE BY CONTRACTING PARTY NATIONALS WITH CCAMLR CONSERVATION MEASURES
Author(s): Delegation of Chile Title: IMPLEMENTATION OF CONSERVATION MEASURE 10-08 (2006) SCHEME ... TO PROMOTE COMPLIANCE BY CONTRACTING PARTY NATIONALS WITH CCAMLR CONSERVATION MEASURES Approval ...
Meeting Document : SCIC-08/13 : Autor(es): Delegation of Chile
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Preliminary assessment of the exploratory fishery for Dissostichus spp. on BANZARE Bank (Division 58.4.3b), based on the analysis of fine-scale catch and effort data
Abstract: In 2006 the CCAMLR scientific committee noted several features of exploratory ... Dissostichus fisheries in the southern Indian Ocean (58.4) which gave cause for concern as to the status of the ... resource in this area, and the lack of a scientific basis for setting catch limits in these areas (SC-CAMLR ... the initial exploration of the C2 fine scale catch and effort data held by CCAMLR for the fishery in ...
Meeting Document : WG-FSA-07/44 : Autor(es): J.P. McKinlay, D.C. Welsford, A.J. Constable and G.B. Nowara (Australia)
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Changing status of three notothenioid fish at the South Shetland Islands (1983–2016) after impacts of the 1970–80s commercial fishery
2007 and 2012 around the South Shetland Islands: (1) continued increase in the abundance of N. rossii ... but seemingly relate to the dramatically changing ecosystem of the region due in part to climate as ... with trends reported in seabirds that feed on juveniles of these notothenioids: decrease in the areas ... commercially fished. Under the regulation of CCAMLR, commercial fishing for finfish in the South Shetland ...
Meeting Document : WG-FSA-17/P01 : Autor(es): E. Barrera-Oro, E. Marschoff and D. Ainley
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Exploratory longline fishing around the Kerguelen Islands (Division 58.5.1). Description of the fishing effort; catchability and target size of Dissostichus eleginoides
fact that fish become unhooked along the side of the ship, which leads to a real catchability value in ... in 1991/92) and that of females (L = 98.70 cm in 1.990/91 and 98.61 cm in 1991/92). The sex ratio is ... fishing over the western shelf break of the Kerguelen shelf (Division 58.5.1). Scientific monitoring of ... . Bottom longlines are generally used at depths of 400 to 600 m. The mainline (1 to 2 miles long) carries ...
Meeting Document : WG-FSA-92/31 Rev. 1 : Autor(es): G. Duhamel (France)
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Network characterisation of the food-web of the Ross Sea, Antarctica
toothfish (Dissostichus mawsoni) in the region. We evaluate: (1) biomass and flow of organic matter by ... pronounced peak in biomass in the lower-middle part of the food-web, a result of high biomass of ... of ecological importance’ in the food-web of the Ross Sea are phytoplankton, mesozooplankton ... a moderate index of ecological importance in the food-web of the Ross Sea shelf and slope. Changing ...
Meeting Document : WG-EMM-12/53 : Autor(es): M.H. Pinkerton and J.M. Bradford-Grieve (New Zealand)
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On the problem of diurnal migrations of some fish species on the South Georgia shelf (Subarea 48.3)
Abstract: The results of experiments on the South Georgia Shelf carried out in the period of 1986 ... was the most distinctive in Ch.gunnari fry. The individuals used to ascend towards the water column ... individuals were found in the pre-bottom layer by day, being presented their small quantities in the water ... sunset) they ascended into the water column where they were found in the superficial layer. No ...
Meeting Document : WG-FSA-99/64 : Autor(es): I.A. Trunov, J.A. Frolkina and M.P. Konstantinova (Russia)
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Interannual hydroclimate fluctuations of the Atlantic part of the Antarctic since 1970 to 2000
. In this connection, retrospective hydrometeorological data on the areas of South-West Atlantic ... Abstract: Late in 1999 and early in 2000 there was observed a significant shifting of Falkland ... Current core towards the shelf and abnormally large number of icebergs on the South Georgia Island shelf ... Antarctic were examined from 1970 to 2000 March. The analysis of atmospheric pressure average monthly fields ...
Meeting Document : WG-EMM-00/35 : Autor(es): G. Chernega, I. Polischuk and P. Chernyshkov (Russia)
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Krill of the Ross Sea: distribution, abundance and demography of Euphausia superba and Euphausia crystallorophias during the Italian Antarctic expedition (January–February 2000)
, in the area north of Continental Shelf, was 9.3 g/1000m3 of filtered water with a mean density of ... dominance in the High Antarctic Zone (south of 74°), with a mean relative biomass of 3.0 g/1000m3 and mean ... of krill in the western Ross Sea (Antarctica). A midwater sampler-trawl (Hamburg Plankton Net) was ... density of 19.1 ind/1000m3. The present data have demonstrated that in the Ross Sea during the summer ...
Meeting Document : WG-EMM-02/32 Text : Autor(es): A. Sala, M. Azzali and A. Russo (Italy)
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Examination of the gut contents of Patagonian toothfish (Dissostichus eleginoides) from the toothfish pot fishery trials around South Georgia
sizes. This was hypothesised to result from fish caught in pots suffering reduced levels of trauma. The ... location and depth. However prawns were not common in the stomachs of fish caught from this location using ... longlines. The next most common prey category was fish, as found in previous studies of this species. This ... CCAMLR, an understanding of the trophic relationships of exploited species is vital. Toothfish ...
Meeting Document : WG-FSA-00/25 : Autor(es): G. Pilling, T. Daw, M. Purves, D. Agnew and J. Xavier (United Kingdom)