Resultados de la búsqueda
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Preliminary study on the breedings of chinstrap and gentoo penguins at Barton Peninsula, King George Island
selected from several locations scattered in the colony. The nests were visited by 2-3 day interval and the ... following years. Some suggestion for the further research in this rookery are also mentioned. Author(s): H ...
Meeting Document : WG-CEMP-93/23 : Autor(es): H.-C. Shin and S. Kim (Republic of Korea)
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RAPID WARMING OF THE OCEAN AROUND SOUTH GEORGIA,SOUTHERN OCEAN, DURING THE 20TH CENTURY: FORCINGS, CHARACTERISTICS AND IMPLICATIONS FOR LOWER TROPHIC LEVELS
20th century but there are few locations with data before the 1950s. In addition, assessments of change ... in this region are hampered by the strong seasonal bias in sampling, with the vast majority of data ... (1925 to 2006). Based on these data, we observe significant warming between the early and late 20th ... century, with differential warming between summer and winter months and an indication that late 20th ...
Meeting Document : WG-EMM-08/P03 : Autor(es): M.J. Whitehouse, M.P. Meredith, P. Rothery, A. Atkinson, P. Ward and R.E. Korb
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An inter-laboratory comparison of ages estimated for Dissostichus eleginoides using otoliths
years or less of each other. Variation in estimates between readers did not increase markedly with age ... information: the readers generally read the sections similarly, with 84.7% of the estimates falling within two ... full age range, indicating differences in the criteria used to interpret the first few years of age ...
Meeting Document : WG-FSA-99/56 : Autor(es): J. Ashford (United Kingdom) and P. Horn (New Zealand)
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Characterisation of the toothfish fishery in the Ross Sea region (Subarea 88.1 and SSRUs 88.2A–B) through 2018/19
and SSRUs 88.2AB) together with biological characteristics of the catch of Antarctic toothfish through ... , concentrated fishing on the slope south of 70° S on the traditional fishing grounds, with some expansion of ... effort extending into SSRUs 88.2A and 88.2B, which are now open to fishing. Data are now summarized with ... previous years; some fish were recaptured after 16 years at liberty. Recaptures were higher in 2019, likely ...
Meeting Document : WG-FSA-2019/07 : Autor(es): J. Devine, S. Parker and A. Dunn
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Summary of the toothfish fishery and tagging program in the Ross Sea region (Subarea 88.1 and SSRUs 882A–B) through 2017/18
recaptured in 2018 was similar to that recaptured in previous years, with some fish recaptured after 14 years ... SSRUs 88.2AB) together with biological characteristics of the catch of Antarctic toothfish through the ... amount of effort in the northern area of SSRU 88.2A, which was opened to the exploratory fishery with the ... trend with a small increase in the proportion of males over time in all three areas. The number of fish ...
Meeting Document : WG-FSA-18/46 : Autor(es): S. Mormede and S. Parker
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Operational interactions between cetaceans and the Patagonian toothfish (Dissostichus eleginoides) industrial fishery off Southern Chile
(Dissostichus eleginoides) fishery were assessed in southern Chile through 7 surveys with observers on board ... present, evidence of damaged catch included lips, heads and trunks and a total of 121 lips, 16 heads and 3 ... trunks were recovered. Mean rate of predation was 3% (± 2% CI 95%; n=180 sets) and ranged between 0% and ... fishing grounds are also traditional feeding grounds for sperm whales. Monetary loss associated with ...
Meeting Document : WG-FSA-03/95 : Autor(es): R. Hucke-Gaete, C.A. Moreno and J.A. Arata (Chile)
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Hatching season and growth of Pleuragramma antarcticum larvae near the Antarctic peninsula in austral summer 1993/94
increments was 178.3 (standard deviation = 12.8). With the samples we examined, we speculate that there exist ... ), while the small ones in early summer (December). Author(s): Cha, S.S., Lee, T.W., Kim, S. Title ...
Meeting Document : WG-EMM-96/65 : Autor(es): Cha, S.S., Lee, T.W., Kim, S.
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Connectivity and population structure in Pleuragramma antarcticum along the west Antarctic Peninsula
early stages which are ice-dependent. Alternatively, if linked by the large-scale circulation, abundance ... Marguerite Bay, with no mixing between. The presence of a single length mode at Charcot Island and Marguerite ... Bay corresponding to the year class found during GLOBEC 2001 suggested a dominant cohort and no local ... of otolith chemistry are scheduled over the next year. Author(s): J. Ashford, J. Ferguson, A ...
Meeting Document : WG-FSA-10/16 : Autor(es): J. Ashford, J. Ferguson, A. Piñones, J. Torres and W. Fraser
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Models of larvae dispersion of Antarctic toothfish (Dissostichus mawsoni)
been found associated with bathymetric features shallower than 2250 m and typically deeper than 500 m ... from the Antarctic continent north to approximately 57° S. Efforts to understand early life history and ...
Meeting Document : WG-FSA-12/48 : Autor(es): A. Dunn, G.J. Rickard, S.M. Hanchet and S.J. Parker (New Zealand)
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Squeezed from both ends: Decline in Antarctic fur seals in the South Shetland Islands driven by both Top–down and Bottom–up processes
provided as an indicator of bottom-up drivers and we contrast these with early season neonate mortality and ... . Predation rate has increased 4% per year since 2002. We discuss the relative roles of bottom-up and top ...
Meeting Document : WG-EMM-14/39 : Autor(es): M.E. Goebel and C.S. Reiss (USA)