Resultados de la búsqueda
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PRELIMINARY RESULTS OF TRIALS TESTING MODIFIED LONGLINE GEAR ‘TROTLINES’ IN PRESENCE OF CETACEANS IN SUBAREA 48.3
composition on Spanish system longlines with those on ‘trotlines’ fitted with cetacean exclusion devices ... cetaceans were present. This difference increased with increasing abundance of cetaceans highlighting the ... potential of this gear to reduce cetacean depredation. 3. By-catch to catch ratio was greater by number for ... trotlines fitted with cachalotera nets were dead or suffered life-threatening injuries. Toothfish were also ...
Meeting Document : WG-FSA-08/44 : Autor(es): R.E. Mitchell, J. Clark, P. Reyes, L. Jones, J. Pearce, C.E. Edwards and D. Agnew (UK)
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High-resolution ocean modelling of the South Georgia and South Orkney Islands regions
regions. The models are regional applications of NEMO with a ~3 km horizontal resolution, and include key ... Abstract: The marine ecosystem associated with the ocean shelves around South Georgia and the ... South Orkney Islands is highly productive, with a history of commercial exploitation. Many of the key ... reanalysis, a seasonal glacial melt cycle, and with sea ice processes incorporated using LIM3. The models ...
Meeting Document : WG-EMM-16/15 : Autor(es): E. Young, E. Murphy and P. Trathan
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SPATIAL PATTERNS IN MACKEREL ICEFISH DIET PROVIDES INSIGHTS INTO KRILL ABUNDANCE AND DISTRIBUTION
low in Antarctic krill (7 % IRI) compared with similar data for the same month in 2004-2006. The ... results are consistent with other indicators of krill availability on the South Georgia shelf, which ... occurrence of krill in the diet with earlier data sets (1967-1992) show that 2009 is not unique, as similarly ... poor krill years occurred in 1969, 1978 and 1991. Spatial analysis of icefish diet indicates ...
Meeting Document : WG-EMM-09/27 : Autor(es): M.A. Collins and C.E. Main (United Kingdom)
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An overview of tagging skates (Rajiformes) and CCAMLR skate tagging data
, longevity, discard survival and abundance. Most Antarctic skate species are little known and, coupled with ... conducted in the CCAMLR area for several years now, only preliminary observations have been presented to ... tag loss and tag shedding rates in fish (with emphasis on elasmobranchs), a summary of CEFAS tagging ... of the tagging work undertaken under the auspices of CCAMLR in the Southern Ocean with comments on ...
Meeting Document : WG-SAM-13/25 Rev. 1 : Autor(es): S.R. McCully, D. Goldsmith, G. Burt, R. Scott and J.R. Ellis (United Kingdom)
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An overview of tagging skates (Rajiformes) and CCAMLR skate tagging data
, longevity, discard survival and abundance. Most Antarctic skate species are little known and, coupled with ... conducted in the CCAMLR area for several years now, only preliminary observations have been presented to ... tag loss and tag shedding rates in fish (with emphasis on elasmobranchs), a summary of CEFAS tagging ... of the tagging work undertaken under the auspices of CCAMLR in the Southern Ocean with comments on ...
Meeting Document : WG-FSA-13/33 : Autor(es): S.R. McCully, D. Goldsmith, G. Burt, R. Scott and J.R. Ellis (United Kingdom)
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VARIATION IN DEMERSAL FISH SPECIES RICHNESS IN THE OCEANS SURROUNDING NEW ZEALAND: AN ANALYSIS USING BOOSTED REGRESSION TREES
species richness, with highest richness occurring at depths of 900 to 1000 m, and with a broad plateau of ... moderately high richness between 400 and 1100 m. Richness was higher both in waters with high surface ... temperature was also important, with lower richness occurring in waters that were cooler than expected given ... constrained to reflect the known performance of trawl gear. Species richness declined with increasing cod-end ...
Meeting Document : WS-VME-09/P04 : Autor(es): Leathwick, J.R., Elith, J., Taylor, P., Francis, M.P., Hastie, T.
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Numerical model of ecosystem including Euphausia superba Dana as a key species in circumpolar region
integrated model with the above 5 items. This year, we have developed an OGCM and a one dimensional ecosystem ... applied to primary production in Antarctic Ocean (3) to develop an ecosystem model able to describe krill ... ) with seven compartments and coupled with a one dimensional mixed layer model for calculating the ...
Meeting Document : WG-Krill-94/26 : Autor(es): M.J. Kishi and M. Naganobu (Japan)
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A summary of the commercial fishery for mackerel icefish Champsocephalus gunnari in Subarea 48.3 during the 1997/98 season
briefed before the short trip to South Georgia. It is unclear whether the poor catches by the FV Betanzos ...
Meeting Document : WG-FSA-98/53 : Autor(es): G. Parkes, A. King and C. Jones (United Kingdom)
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Selectivity of standard polish commercial trawl codends on Antarctic fishing grounds
Abstract: steelon codends used in commercial fishery, with a nominal mesh size A = 80 mm and A ... = 100 mm, made of double twines with a thickness of 4.2 mm. The studies covered 6 major fish species. 1 ... tendency to pass through meshes of the codend than Antarctic icefish and bumphead notothenia. 3. The ... result of the application of webbing with permanently open meshes for codend construction. 4. The most ...
Meeting Document : SC-CAMLR-VII/BG/11 : Autor(es): J. Zaucha (Poland)
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A bioenergetics model for estimating prey consumption by an Adélie penguin population in east Antarctica
CEMP site at Bechervaise Island using 13 years of data, a year when penguins successfully reared chicks ... , and a year with low breeding success. On the basis of variable breeding success and the proportion of ... model parameters using Monte Carlo simulation. The model was parametised with data obtained from the ...
Meeting Document : WG-EMM-16/P10 : Autor(es): D. Southwell, L. Emmerson, J. Forcada and C. Southwell