Search results
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An assessment of the impact of krill fishery on penguins in the South Shetlands
IIllHrBIlHaMll B 0 BpeMX Ce3OHa pa3MHOXeHHX IIllHTBHHOB. fle~a6pbc~Hfi BbInOB KpIlnX OYeHb HH30K, OflHaKO ... BbInOBa, TO BeCbMa ManOBePORTHO, 9 T O c y w e c ~ ~ y m u @ i npoMbrcen ... obtained around Elephant Island and the eastern end of King George Island in late January and early March ... , activity budgets and foraging trip duration (Everson, 1987; Trivelpiece et al., 1987). During shipboard ... Paper Title: An assessment of the impact of krill fishery on penguins in the South Shetlands ... ) fishery and penguins during the penguins' breeding season (December to March) in the South Shetland ... krill catch is very low in December while the catch rate for the following three months is roughly ... constant (3 000 to 10 000 tonnes/10-day period) due to an increase in fishing intensity in areas closer to ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 107–128 : Author(s): Ichii, T., M. Naganobu and T. Ogishima
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On the power to detect changes using the standard methods for monitoring parameters of predatory species
foraging trips (A5.1), penguin breeding success (A6.1), penguin chick diet (A8.1), and fur seal foraging ... trip duration (C2.0). The other Standard Methods are not evaluated because the power analysis ... shifts by penguins(Standard Method A2.1), duration of penguin foraging trips (A5.1), penguin breeding ... success (A6.1), penguin chick diet (A8.1), and fur seal foraging trip duration (C2.0). The other Standard ... by penguins (Standard Method A2.1), duration of penguin foraging trips (AS.1), penguin breeding success (A6.1 ... ), penguin chick diet (A8.1), and fur seal foraging trip duration (C2.0). The other Standard Methods ... ,llOBaHHH, He,llOCTa TOll HO ~JI5I BbInOJIHeHH5I aHaJIH3a MO~HOCTH (Bec nHHrBHHOB no npH6bITHH ... considered here. 381 3.5 Duration of Foraging Trips (A5.1) The design for monitoring the duration ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 377–397 : Author(s): Boveng, P. and J.L. Bengtson
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Location and intensity of the Soviet krill fishery in the Elephant Island area (South Shetland Islands), 1988/89
aggregations are dispersed or lost due to storms and other factors. The velocity of the northeast drift ... the island with the current; and (iii) vessels return to position (i) when aggregations are dispersed or lost ... or lost due to storms and other factors. The velocity of the northeast drift of krill concentrations ... significativamente a las aves y focas que se alirnentan de este. 1. IN1RODUCTION One of the tasks of the Working ... these concentrations as they drift from the island; and (iii) if the targetted concentrations are lost due to storm ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 305–335 : Author(s): Sushin, V.A. and A.S. Myskov
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Long-term trends in the foraging patterns of female Antarctic fur seals at South Georgia
Georgia Abstract / Description: The number of feeding trips to sea made by female Antarctic fur seals ... utilizing tetracycline-marked teeth confirmed that the feeding trip/suckling cycles of females are reflected ... 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 ... . Bengtson (USA) Abstract The number of feeding trips to sea made by female Antarctic fur seals during ... tetracycline-marked teeth confirmed that the feeding trip/suckling cycles of females are reflected ... , and 2) 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 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 441-443 : Author(s): Bengtson, J.L.
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Exploratory fishing for Dissostichus spp. in the Antarctic region (Subareas 48.1, 48.2 and 88.3)
; however, nothing ever became of this effort. It was not until the 1960s that the Soviet Union began ... in the extensive continental shelf in the Bellingshausen Sea and on the eastern coast of the Antarctic Peninsula ... to around 60°S, near the Antarctic Convergence, and in the Pacific Ocean eastern zone, to the south of 62 ... indicate a wider distribution for D. mawsoni, placing it in the Pacific Ocean eastern sector, between 61 ... Paper Title: Exploratory fishing for Dissostichus spp. in the Antarctic region (Subareas 48.1 ... establish the presence of Dissostichus spp. in Subareas 48.1, 48.2 and 88.3. Industrial longlines (Spanish ... °14'S), while Patagonian toothfish (Dissostichus eleginoides) were caught in waters from King ... George Island in the South Pacific Ocean (61°24'S) to the Scotia Sea in the South Atlantic (58°03 ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 1–17 : Author(s): Arana, P.M. and R. Vega
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Effects of weather and sea-ice on the reproductive performance of the Adélie penguin at Edmonson Point, Ross Sea
and persistent sea-ice and strong winds with snowfalls in December. First incubation trips by females were ... incubation trip. A high number of chicks died during the post-hatching stage and the breeding success was low ... and strong winds with snowfalls in December. First incubation trips by females were significantly longer than ... in 1999 and 2001, which in turn delayed the mean departure date of males on the second incubation trip ... and strong winds with snowfalls in December. First incubation trips by females were signifi cantly longer ... trip. A high number of chicks died during the post-hatching stage and the breeding success was low ... such as reduced food availability and ice cover extension will cause lengthening of foraging trips (Irvine et al ... ., 2000). However, the degree to which trips lengthen is con- strained by the need to relieve the mate ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 99–109 : Author(s): Olmastroni, S., F. Pezzo, V. Volpi and S. Focardi
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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
) of Patagonian toothfish were lost due to depredation by killer whales and both killer and sperm whales. Killer ... . It was estimated that a total of 571 tonnes (€4.8 million) of Patagonian toothfish were lost due ... economIc zone: an assessment of dePredatIon levels and InsIghts on PossIble mItIgatIon strategIes ... ) of Patagonian toothfish were lost due to depredation by killer whales and both killer and sperm whales. Killer ... can vary from the number of hooks set, as hooks can be lost while underwater, because ... of CPUE reduction in the presence of ceta- ceans. To provide an estimate of the amount of toothfish lost ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 179–195 : Author(s): Tixier, P., N. Gasco, G. Duhamel, M. Viviant, M. Authier and C. Guinet
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Line weights of constant mass (and sink rates) for Spanish system Patagonian toothfish longline vessels
operations the netting bags abrade on the seabed causing rocks to be lost and the weights to become ... causing rocks to be lost and the weights to become progressively lighter, requiring ongoing repair ... to be lost and the weights to become progressively lighter, requiring ongoing repair. This problem can ... of gear lost in benthic habitats. This paper presents the results of an experiment designed to determine ... (55°13.0'S 66°25.4'W) which lies in the eastern junction of the Beagle Channel and the South ... typically comprises sev- eral rocks of different sizes and shapes which are frequently lost from ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 93–106 : Author(s): Robertson, G., C.A. Moreno, E. Gutiérrez, S.G. Candy, E.F. Melvin and J.P. Seco Pon
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Factors affecting the incidental mortality of seabirds in the Dissostichus eleginoides fishery in the southwest Atlantic (Subarea 48.3, 1995 season)
, H 0 BbInYVeHHbIX Bn0CneACTBMI.I. B 3~0f i rpynne ~ a ~ 6 o n e e MHOrOVPICneHHbIMM X B A J I H C b BkiAbI ... fishing trips, as indicated in Tables 1 and 3. Thus, 14 fishing trips (87.5%) out of a total of 17 trips ... in this paper. Data on incidental mortality from the Korean vessel Ihn Sung 66, which made two trips during ... Isla Sofia Magallanes III Isla lsabel Total Trip 1 Trip 2 Species M . giganteus ... Paper Title: Factors affecting the incidental mortality of seabirds in the Dissostichus ... eleginoides fishery in the southwest Atlantic (Subarea 48.3, 1995 season) Abstract / Description: This paper ... Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.3 during the 1995 season. The data was obtained ... in vessels' analyses of catch of birds per unit effort (BPUE), as well as of the haul-by-haul ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 79–91 : Author(s): Moreno, C.A., P.S. Rubilar, E. Marschoff and L. Benzaquen
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Significant intra-annual variability in krill distribution and abundance at South Georgia revealed by multiple acoustic surveys during 2000/01
that in the eastern box (80.4 g m-2). Analysis of transect data obtained in the western box in the midseason survey ... g m-2 that was intermediate between the eastern and western areas. The size structure of the krill in the central region also ... was less than that in the eastern box (80.4 g m-2). Analysis of transect data obtained in the western box ... g m-2 that was intermediate between the eastern and western areas. The size structure of the krill in the central region also ... in the mid-season survey was less than that in the eastern box (80.4 g m-2). Analysis of transect data ... - season revealed a krill density of 47.2 g m-2 that was intermediate between the eastern and western ... . The eastern survey box was altered in two ways. First, the original western-most tran- sect was doubled ... of the front could contribute towards annual variation in krill abundance. Second, the eastern boundary ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 71–82 : Author(s): 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