Resultados de la búsqueda
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Interannual variability of polynya extent in the Antarctic Ocean
Abstract: There are two general kinds of polynya (an ice-free area within sea ice borders ... are trending like a pulse wave. In the whole Antarctic Ocean, peak years of polynyas extent are in the ... 1981/82 (from July 1981 to June 1982), 1991/92 and 1995/96. In the Antarctic Peninsula area, peak years ...
Meeting Document : WG-EMM-01/34 : Autor(es): M. Naganobu and K. Segawa (Japan)
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Sea surface temerature anomalies near South Georgia: relationships with the South Atlantic and the Pacific El Niño regions
autocorrelation was also evident at a lag period of 1 year; though this was restricted to an area that ... anomalies, with periodicity evident at a lag period of 4 years. To the north of the island significant ... almost 3 years, and with the West Pacific showing the strongest correlations. These global ...
Meeting Document : WS-AREA 48-98/10 : Autor(es): P. Trathan and E.J. Murphy (UK)
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The SCAR Antarctic digital topographic database
from 1:200 000 to 1:5 000 000, were digitized for the project and reference was made to a similar ... coastline now available. The topographic database created, to be published on one CD-ROM, will form the ... foundation for future GIS needs in Antarctic research. Products already derived from the database include ... Scientific Committee on Antarctic Research (SCAR), during a two-year period. Over 200 maps, at scales ranging ...
Meeting Document : SC-CAMLR-XII/BG/16 : Autor(es): Delegation of United Kingdom
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Validation of sink rates of longlines measured using two different methods
, for measuring sink rates to shallow depths when instant readings were required. TDRs can be used to ... temperature where they soaked for at least 30 minutes before being deployed. Since the TDRs may hang on the ... deployment of an instrument about 30 s before it passed through the setting chute. The observer positioned ... depths, average sink rates of the TDRs were obtained for four target depths: 2, 5, 10 and 20 m. It was ... 0.239 ± 0.016 m.s–1 to 20 m and were thus 30% slower than those measured to 20 m (Table 1). This ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 179–187 : Autor(es): Wienecke, B. and G. Robertson
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Beach debris survey - Main Bay, Bird Island, South Georgia 1994/95
). Debris accumulated throughout the summer accounted for 33% of the total (three times the summer ... line, comprising 80% of debris, was mainly identical to material used in the long-line fishery, as ... Abstract: The fifth year of survey of beach debris at Main Bay, Bird Island reported a 3-fold ...
Meeting Document : CCAMLR-XV/BG/04 : Autor(es): Delegation of the United Kingdom
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Haul data analysis from the Polish krill fishery in 1997–1999
February and June from 1997 to 1999 in statistical area 48. Records from each haul were used for analysis ... sub-areas 48.1 and 48.2. On average, the vessel made from 7 to 9.5 hauls daily which lasted an average ... of 60-70 minutes. Differences in catch rates in various areas and years were observed. The highest ...
Meeting Document : WG-EMM-00/17 : Autor(es): E. Jackowksi (Poland)
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DEPREDATION AROUND SOUTH GEORGIA AND THE IMPLICATIONS ON STOCK ASSESSMENT OF D. ELEGINOIDES
identification and give an idea of population size, a photographic catalogue of individual animals was developed ... both in season and between years. Hydrophones deployed on longlines recorded both vocalisations of ... be responsible for attracting the cetaceans. Author(s): J. Moir Clark, D.A. Agnew, P. McCarthy and M ... examined and varied from 0.9% to 5.8% of the TAC per year over the time period. Additional work was also ...
Meeting Document : WG-FSA-09/16 : Autor(es): J. Moir Clark, D.A. Agnew, P. McCarthy and M. Unwin (United Kingdom)
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A conceptual model of the krill fishery
Japanese fishing vessel since the 1989/90 fishing season. Among many reasons for changing fishing grounds ... , krill density, krill, size, ice condition, transshipment, and salp-by catch accounted for 95.6% of the ... changes. Although low krill density was the primary reason for changing fishing grounds, other seasonal ... is essential to perform similar analyses for the other nation’s vessels. A conceptual model for ...
Meeting Document : WG-EMM-04/51 : Autor(es): S. Kawaguchi, S. Nicol (Australia), K. Taki and M. Naganobu (Japan)
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Observations on haul-out patterns and trends in the breeding populations of southern elephant seal at Península Valdés (Patagonia) and Stranger Point (25 de Mayo - King George I.)
of r between these two years is 0.05, similar to the one estimated for this population by McCann ... Convergence. Most of the breeding places are located on islands, except for the herd found on the coast of ... reason for this decrease. One reason could be the competition with fishing fleets since the onset of ... (van Aarde, 1980). In this paper we present information on the last seven years in two breeding ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 453-463 : Autor(es): Vergani, D.F., M.N. Lewis and Z.B. Stanganelli
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Preliminary assessment of mackerel icefish Champsocephalus gunnari in Subarea 48.3 based on the 2017 groundfish survey
tonnes) within Statistical Subarea 48.3. Projections for the 2017/18 and 2018/19 seasons applying the ... CCAMLR harvest control rule lead to catch limits (TAC) of 4 733 tonnes for 2017/18 and 3 269 tonnes for ... 2018/19. Author(s): T. Earl Title: Preliminary assessment of mackerel icefish Champsocephalus gunnari ... : Content Approved Delegation responsibility for releasing documents: United Kingdom ...
Meeting Document : WG-FSA-17/47 : Autor(es): T. Earl