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Variations in condition indices of mackerel icefish at South Georgia from 1972 to 1997
Paper Title: Variations in condition indices of mackerel icefish at South Georgia from 1972 to ... CONDITION INDICES OF MACKEREL ICEFISH AT SOUTH GEORGIA FROM 1972 TO 1997 I. Everson %3 British Antarctic ... , 1995, 1996, 1997); (iii) commercial fishing activities by Russian vessels between 1972 and 1991 ... 40°W and 44"W. The series of data have been grouped by month, beginning in August 1972 and ... = macaroni penguin; trip = foraging trip duration; surv = pup survival; meal = meal size and S = breeding ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 119–132 : Autor(es): Everson, I. and K.-H. Kock
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Assessing the power to detect systematic change in Adélie penguin foraging trip duration
Paper Title: Assessing the power to detect systematic change in Adélie penguin foraging trip ... duration Abstract / Description: Models of variability in Adélie penguin foraging trip durations were ... . While foraging trip duration is considered to be sensitive to changes in food availability over time ... ice cover as a covariate to explain between-year variation in trip duration increased the power to ... ASSESSING THE POWER TO DETECT SYSTEMATIC CHANGE IN ADÉLIE PENGUIN FORAGING TRIP DURATION C. Southwell, J ... trip durations were constructed and fitted to data collected at Béchervaise Island over a 12-year ... difference and slope. While foraging trip duration is considered to be sensitive to changes in food ... %. The strategy of including ice cover as a covariate to explain between-year variation in trip duration ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 201–215 : Autor(es): Southwell, C., J. Clarke and L.M. Emmerson
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Long-term trends in the foraging patterns of female Antarctic fur seals at South Georgia
utilizing tetracycline-marked teeth confirmed that the feeding trip/suckling cycles of females are reflected ... ) the number of feeding trips made by an individual’'s mother during lactation. This analysis ... showed that between 1962 and 1981 the mean number of feeding trips made by female fur seals varied ... markedly. From 1962 to 1979 there were several significant increasing and decreasing trends in the mean ... tetracycline-marked teeth confirmed that the feeding trip/suckling cycles of females are reflected as ... number of feeding trips made by an individual's mother during lactation. This analysis showed that ... between 1962 and 1981 the mean number of feeding trips made by female fur seals varied markedly. From ... 1962 to 1979 there were several significant increasing and decreasing trends in the mean number of ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 441-443 : Autor(es): Bengtson, J.L.
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A review of data on abundance, trends in abundance, habitat use and diet of ice-breeding seals in the Southern Ocean (submitted to the 2008 Joint CCAMLR-IWC Workshop)
(1962) and Eklund (1964). They made sightings from ships along transects in two relatively small areas ... represent the entire pack-ice. From the late 1960s to the early 1980s, Erickson and colleagues made a ... -out densities reported in Erickson et al., 1972), the Oates and George V coast region (145°E–170°E ... ) in 1972/73 (densities of seals hauled out and a minimum population estimate reported in Erickson et ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 49–74 : Autor(es): Southwell, C., J. Bengtson, M. Bester, A.S. Blix, H. Bornemann, P. Boveng and M. Cameron, J. Forcada, J. Laake, E. Nordøy, J. Plötz, T. Rogers, D. Southwell, D. Steinhage, B.S. Stewart and P. Trathan
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A first step towards modelling the krill–predator dynamics of the Antarctic ecosystem
recently finfish exploita- tion commenced in the 1960s, and that of Antarctic krill (Euphausia superba ... whales (B. physalus) from 1913 to 1976, and humpback whales (Megaptera novaeangliae) until 1962 (though ... the 1960s and 1970s. Based on historical catch information for blue whales and the fit of a logistic ... began in the late 1960s, with catches peaking at over half a million tonnes in the 1981 season, and ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 217–277 : Autor(es): Mori, M. and D.S. Butterworth
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Low breeding success of the Adélie penguin at Béchervaise Island in the 1998/99 season
, foraging trip duration and diet suggests that the death of chicks during the guard stage was due to an ... masses brought back to the chicks were within the normal range but extended foraging trip durations ... all chicks died of starvation), when smaller meals were delivered and birds foraged further offshore ... 0.69 to 1.06 chicks crPched per nest. Evidence from analyses of foraging location, foraging trip ... back to the chicks were within the normal range but extended foraging trip durations reduced feeding ... frequency. These findings contrast with observations made in 1994/95 (a season in which all chicks died of ... smaller meals and The potential for human harvesting of krill to affect increased foraging trip ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 151–167 : Autor(es): Irvine, L.G., J.R. Clarke and K.R. Kerry
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Operational interactions of sperm whales and killer whales with the Patagonian toothfish industrial fishery off southern Chile
., 2003). The Patagonian toothfi sh fi shery began as ex- ploratory during 1955 in Chile (González, 1962 ... and per fi shing trip according to the following relationship (modifi ed from Yano and Dahlheim ... comparing the results of this study with existing photographic databases from the eastern South Pacifi c ... exploratory trip undertaken during late 2001, suggesting that this issue does not pose a major threat to ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 127–140 : Autor(es): Hucke-Gaete, R., C.A. Moreno and J. Arata
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Commercial krill fisheries in the Antarctic, 1973 to 1988
) fishery between 1972/73 and 1987/88. The annual krill catch rose gradually to a peak of some 500 000 ... effort for the Antarctic krill (Euphausia superba) fishery between 1972/73 and 1987/88. The annual ... ) entre 1972/73 et 1987/88. La capture annuelle du krill a augmente petit a petit jusqu'a un maximum de ... .5I npH npOMblCJIe aHTapKTHlIeCKoro KPHJI.5I (Euphausia superba) B TelleHHe nepHO,l{a 1972/73 ... para la pesca de krill Antartico (Euphausia superba) entre 1972/73 y 1987/88. Hubo un aumento gradual ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 229–281 : Autor(es): Miller, D.G.M.
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Effects of weather and sea-ice on the reproductive performance of the Adélie penguin at Edmonson Point, Ross Sea
males on the second incubation trip. A high number of chicks died during the post-hatching stage and the ... trip. A high number of chicks died during the post-hatching stage and the breeding success was low ... shortness of the austral summer and shows a highly coordinated breeding schedule (Taylor, 1962; Ainley ... extent) is one of the main factors that affect breeding success (Taylor, 1962; Emison, 1968; Ainley and ... November), but mean trip duration varied (F2,309 = 124.80, p < 0.001). In 2003, trips were much longer ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 99–109 : Autor(es): Olmastroni, S., F. Pezzo, V. Volpi and S. Focardi
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Differentiation of independent populations of Antarctic krill
the krill from the south to the north and vice versa. J.W.S. Marr (Marr, 1962) explained the ... ) population of E. superba" (Makarov, 1972). In a later paper (Makarov, Maslennikov, 1975) after the ... of the krill returning from the eastern part of the Weddel Drift to the coastal current waters at ... . Makarov R.R. 1972. Life cycle and distribution pattern ofEuphausia superba Dana. Trudy VNIRO, v. 77, p ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 275-281 : Autor(es): USSR