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Low breeding success of the Adélie penguin at Béchervaise Island in the 1998/99 season
Paper Title: Low breeding success of the Adélie penguin at Béchervaise Island in the 1998/99 ... , foraging trip duration and diet suggests that the death of chicks during the guard stage was due to an ... inadequate rate of food supply. In most previous seasons adults have foraged both at the continental shelf ... fewer local trips and both sexes spent longer at sea than in years of higher breeding success. Meal ... guard meal size (ascertained by stomach flushing) to mean guard foraging trip duration (measured in ... ;bruary analysed separately since sex differences in foraging and blew from Kista Strait at the eastern ... Moment Correlation, RZad, = 0.794, p < 0.001). This is also illustrated in Figure 1. Foraging Trip ... females (using individual birds as sampling units) are also shown in Table 3. Mean 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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Krill distribution in the western Atlantic sector of the Southern Ocean during 1983/84, 1984/85 and 1987/88 based on the results of Soviet mesoscale surveys conducted using an Isaacs-Kidd midwater trawl
Paper Title: Krill distribution in the western Atlantic sector of the Southern Ocean during 1983 ... -Kidd midwater trawl Abstract / Description: In this paper we consider the results of three mesoscale ... Island. Surveys including from 158 to 202 stations were carried out by Soviet research vessels in the ... summer-autumn periods of 1983/84 and 1987/88 and in the spring-summer of 1984/85 using a grid of stations ... krill in the eastern part of the Scotia Sea may cause it to be absent from the South Georgia region ... topography. Unlike the western part of the survey area, the pattern of krill distribution in the eastern ... part varies significantly. In the spring period (Figure 3) krill was virtually absent in the eastern ... eastern Scotia Sea and around South Georgia. In addition, a zone with krill biomass of 100-1 000 g / l ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 59–70 : Autor(es): Sushin, V.A. and K.E. Shulgovsky
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A hypothetical life cycle for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region
Paper Title: A hypothetical life cycle for Antarctic toothfish (Dissostichus mawsoni) in the Ross ... Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region are reviewed. Based on the presumed ... of the smallest toothfish taken in the toothfish fishery. The hypothesis presented is that D. mawsoni ... in CCAMLR Subareas 88.1 and 88.2 spawn mainly on the ridges and banks of the Pacific-Antarctic ridge ... have moved shorter distances. Thus, of those deeper floats which became entrained in the eastern Ross ... spawning ground, the eggs and larvae are widely dispersed. Some eggs and larvae drift east in the eastern ... hypotheticAl life cycle for AntArctic toothfish (Dissostichus mawsoni) in the ross seA region S.M. Hanchet ... reproduction, size distribution and movements of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 35–53 : Autor(es): Hanchet, S.M., G.J. Rickard, J.M. Fenaughty, A. Dunn and M.J. Williams
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Estimating unaccounted fishing mortality in the Ross Sea region and Amundsen Sea (CCAMLR Subareas 88.1 and 88.2) bottom longline fisheries targeting Antarctic toothfish
unaccounted fishing mortality from lost lines in these fisheries is provided. These estimates suggest that on ... Paper Title: Estimating unaccounted fishing mortality in the Ross Sea region and Amundsen Sea ... counted in estimates of total fishing removals or otherwise accounted for in stock assessment models. The ... mortality resulting from the loss of sections of bottom longline gear in the Ross Sea region and Subarea ... in stock assessments (SC-CAMLR, 2007a; Dunn and Hanchet, 2009; Mormede et al., 2011a, 2011b). Lost ... .). The fate of fish hooked on lost lines is unknown. Lost gear is currently reported in order to evalu ... integrity for many years. In this sense, marine debris from lost gear may be considered cumulative ... unaccounted fishing mortality from lost lines in these fisheries is provided. These estimates suggest that on ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 17–30 : Autor(es): Webber, D.N. and S.J. Parker
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Interactions of Patagonian toothfish fisheries with killer and sperm whales in the Crozet Islands Exclusive Economic Zone: an assessment of depredation levels and insights on possible mitigation strategies
Paper Title: Interactions of Patagonian toothfish fisheries with killer and sperm whales in the ... Patagonian toothfish were lost due to depredation by killer whales and both killer and sperm whales. Killer ... pods were involved in 81.3% of the interactions. Significant variations of interaction rates with ... reduction in the presence of ceta- ceans. To provide an estimate of the amount of toothfish lost to ... cell c. To obtain the amount of toothfish lost to depre- dation in each cell (Bloss c), the mean loss ... InteractIons of PatagonIan toothfIsh fIsherIes wIth kIller and sPerm whales In the crozet Islands exclusIve ... Patagonian toothfish were lost due to depredation by killer whales and both killer and sperm whales. Killer ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 179–195 : Autor(es): Tixier, P., N. Gasco, G. Duhamel, M. Viviant, M. Authier and C. Guinet
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Age and growth of the Antarctic skate (Amblyraja georgiana) in the Ross Sea
Paper Title: Age and growth of the Antarctic skate (Amblyraja georgiana) in the Ross Sea Abstract ... estimate of longevity because of the possibility that thorn growth ceases in large individuals. There was ... no obvious difference in growth between the sexes, so the von Bertalanffy curve for both sexes ... provides the best available representation of growth in the species: L t = 70.8 (1- e- 0.308[t+ 1.10 ... skate, but usually they fell in the middle of the size range (Figure 1); this is consistent with the ... ). Most attempts to age skates have counted growth bands in vertebral centra (e.g. Daiber, 1960; Holden ... : 690–692. Daiber, F.C. 1960. A technique for age determination in the skate, Raja eglanteria. Copeia ... , 1960 (3): 258–260. Dulvy, N.K. and J.D. Reynolds. 2002. Predicting extinction vulnerability in ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 183–194 : Autor(es): Francis, M.P. and C. Ó Maolagáin
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Significant intra-annual variability in krill distribution and abundance at South Georgia revealed by multiple acoustic surveys during 2000/01
in the eastern box (80.4 g m-2). Analysis of transect data obtained in the western box in the ... -2 that was intermediate between the eastern and western areas. The size structure of the krill in ... Paper Title: Significant intra-annual variability in krill distribution and abundance at South ... acoustic surveys of Antarctic krill (Euphausia superba) were conducted around South Georgia in the 2000/01 ... density in the western box in the mid-season survey was less than that in the eastern box (80.4 g m-2 ... the eastern and western areas. The size structure of the krill in the central region also refl ected ... km survey box width. The eastern survey box was altered in two ways. First, the original western ... , central, east, south. With the exception of one transect in the south- ern box (the planned eastern most ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 71–82 : Autor(es): Brierley, A.S., C. Goss, S.A. Grant, J.L. Watkins, K. Reid, M. Belchier, I. Everson, M.J. Jessop, V. Afanasyev and J. Robst
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Long-term trends in the foraging patterns of female Antarctic fur seals at South Georgia
Paper Title: Long-term trends in the foraging patterns of female Antarctic fur seals at South ... utilizing tetracycline-marked teeth confirmed that the feeding trip/suckling cycles of females are reflected ... as starving/suckling layers in the teeth of their pups. A collection of unmarked Antarctic fur seal ... markedly. From 1962 to 1979 there were several significant increasing and decreasing trends in the mean ... -TERM TRENDS IN THE FORAGING PATTERNS OF FEMALE ANTARCTIC FUR SE!\LS AT SOUTH GEORGIA* 1 J.L ... tetracycline-marked teeth confirmed that the feeding trip/suckling cycles of females are reflected as ... starving/suckling layers in the teeth of their pups. A collection of unmarked Antarctic fur seal teeth ... 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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Location and intensity of the Soviet krill fishery in the Elephant Island area (South Shetland Islands), 1988/89
Paper Title: Location and intensity of the Soviet krill fishery in the Elephant Island area ... from 21 November 1988 to 25 March 1989. Although the total catch of the USSR in this season reached a ... low. In 1988/89 only one standard fishing vessel operated in the area over 40% of the time. The ... highest catch-per-unit-effort was observed in January 1989 (7.7 tonnes per hour of trawling on average ... KRILL FISHERY IN THE ELEPHANT ISLAND AREA (SOUTH SHETLAND ISLANDS), 1988/89 V.A. Sushin and A.S ... 1989. Although the total catch of the USSR in this season reached a maximum, for the last nine ... seasons the total fishing intensity by the USSR around Elephant Island has been low. In 1988/89 only one ... standard fishing vessel operated in the area over 40% of the time. The highest catch-per-unit- effort was ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 305–335 : Autor(es): Sushin, V.A. and A.S. Myskov
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The use of analysis of penguin stomach contents in simultaneous study of prey and predator parameters
Paper Title: The use of analysis of penguin stomach contents in simultaneous study of prey and ... found in the stomach of a given penguin prevents the pooling of krill lengths from different samples ... . Samples taken in Bahía Esperanza were used to illustrate the different approaches to this analysis. A ... CONTENTS IN SIMULTANEOUS STUDY OF PREY AND PREDATOR PARAMETERS E. Marschoff and B. Gonzalez Abstract ... for analysis because lack of independence between krill specimens found in the stomach of a given ... penguin prevents the pooling of krill lengths from different samples. Samples taken in Bahfa Esperanza ... parameters would be clearly advantageous. It would enable interpretation of changes observed in predator ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 367–375 : Autor(es): Marschoff, E. and B. González