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Seabird interactions with longlining operations for Dissostichus eleginoides around South Georgia, April to May 1994
, and was affected by behavioural interactions between birds. Setting only at night would dramatically ... , intense feeding activity by seabirds, or when incorrectly constructed. File: 08ashford-etal.pdf ... of day, and was affected by behavioural interactions between birds. Setting only at night would ... weather, intense feeding activity by seabirds, or when incorrectly constructed. Une evaluation des ... measures. Within the area covered by the Convention for the Conservation of Antarctic Marine Living ... of seabirds were required to be part of the research plan to be submitted by each Member operating ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 111–121 : Автор(ы): Ashford, J.R., J.P. Croxall, P.S. Rubilar and C.A. Moreno
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Fish distribution and biomass in the Heard Island zone (Division 58.5.2)
nowhere very abundant, although the total biomass is relatively high by virtue of the large area it ... surveys, but this had disappeared by the third survey. Rays were widespread and moderately abundant in ... , although the total biomass is relatively high by virtue of the large area it occupies. There was one ... disappeared by the third survey. Rays were widespread and moderately abundant in waters shallower than 300 m ... eleginoides have been taken o n the plateau since the early 1970s by Soviet, French and Ukrainian vessels ... ), stratification was simply by depth, with the following depth intervals being designated strata: 0-100 m, 100 ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 1–20 : Автор(ы): Williams, R. and W.K. de la Mare
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Selectivity of commercial and research trawls in relation to krill
mean length in catches made by both trawls was ∆L = 6.2 mm. Statistically significant variability in ... krill length composition was observed between catches made by the research trawl, while in commercial ... length in catches made by both trawls was AL = 6.2 mm. Statistically significant variability in krill ... length composition was observed between catches made by the research trawl, while in commercial trawl ... as derived from samples taken by pelagic krill trawls, which is not an effective means of taking ... carried out in the Elephant Island area in January, 1985. The same krill aggregation was fished by two ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 161–169 : Автор(ы): Kasatkina, S.M
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Spatially explicit population dynamics models for Antarctic toothfish in the Ross Sea region
were generalised Bayesian population models and were optimised by fitting to fishery observations ... scenarios suggested that the current single-area stock assessment is biased low by 19–43%. File: 06 Mormede ... models were generalised Bayesian population models and were optimised by fitting to fishery observations ... scenarios suggested that the current single-area stock assessment is biased low by 19–43%. Mormede et ... . Estimates of stock status were mostly informed by the tag-release and tag-recapture data. An important ... region is constrained by areal closures (approxi- mately 70% of the total region), local area catch ...
Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 19–37 : Автор(ы): Mormede, S., A. Dunn, S. Hanchet and S. Parker
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Joinville–D’Urville Islands (Subarea 48.1) – a former fishing ground for the spiny icefish (Chaenodraco wilsoni), at the tip of the Antarctic Peninsula – revisited
Expedition ANT XIX/3 by RV Polarstern in February 2002. Five hauls were conducted north of the two islands at ... the 1970s and 1980s by the Fischkombinat in Rostock (former GDR), Sea Fisheries Institute in Gdynia ... Joinville–D’Urville Islands was revisited in the course of the Antarctic Expedition ANT XIX/3 by RV ... by the Fischkombinat in Rostock (former GDR), Sea Fisheries Institute in Gdynia (Poland) and ... the spiny icefi sh (Chaenodraco wilsoni) in 1978/79 and 1979/80, reported by Poland and the former ... GDR (1978/79 only), and a by-catch of ocellated icefi sh (Chionodraco rastrospinosus) of 350 and 390 ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 1–20 : Автор(ы): Kock, K.-H., L. Pshenichnov, C.D. Jones, K. Shust, K.E. Skora and Zh.A. Frolkina
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Sources of variance in studies of krill population genetics
resurgence of interest in identifying distinct stocks of swarming krill species has been driven by the ... , the underlying assumption of these studies that differentiation between samples is caused primarily by ... been driven by the development of genetic technologies that are more sensitive to subtle population ... differentiation between samples is caused primarily by restricted gene fl ow between widely separated sampling ... using mtDNA sequence analysis by Zane et al. (1998) reported signifi cant differences between krill ... differentiation within krill species identifi ed by mtDNA analysis, but not previously by allozymes, has ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 107–116 : Автор(ы): Jarman, S.N. and S. Nicol
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Composition and characteristics of ichthyofauna in pelagic waters of South Georgia (Subarea 48.3)
both young and adult specimens of 42 species from 16 families. Numerically, catches were dominated by C ... fish taken by the sampling trawl in the water column was found to be krill. Aggregations of juvenile C ... , catches were dominated by C . gunnar i , Lepidonotothen larseni, Chaenocephalus aceratus and ... to 60-80%) of both juvenile and adult fish taken by the sampling trawl in the water column was found ... carried out by Polish scientists in 1980/81 (Gon and Heemstra, 1990) and during the British Antarctic ... . Surveys of pelagic fish in the South Georgia area were conducted using the method developed by Grosslein ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 125–164 : Автор(ы): Frolkina, G.A., M.P. Konstantinova and I.A Trunov
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Problems of population age structure determination of Euphausia superba Dana using an example from the Antarctic Peninsula area and adjacent waters
analysis of data collected by the author during the 1981 season in the region of the Antarctic Peninsula ... and the South Shetland Islands, as well as data collected by other researchers during FIBEX and data ... populations of E. superba in relation to their habitat, on the basis of an analysis of data collected by the ... , as well as data collected by other researchers during FIBEX and data from earlier literary sources ... " oco6eHHOCTe~ pOCTa pa~KOB K ycnOBHHM cpe~. By~ymHe CbeMKH nOMorYT, B ~aCTHOCTH, OTBeTHTb Ha Bonpoc ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 227-270 : Автор(ы): Spiridonov, V.A.
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Possible effects of different levels of krill fishing on predators – some initial modelling attempts
suggested by the Joint Meeting of CCAMLR's Working Group on Krill (WG-Krill) and Working Group for the ... as functions of krill abundance, by considering a krill dynamics model incorporating recruitment ... initial attempt is made to develop the modelling framework suggested by the Joint Meeting of CCAMLR's ... , estimates are made of the parameters of predator survival rates as functions of krill abundance, by ... predators. The underlying concepts may be explained by re fe rence t o F igure 1, w h i c h s h o w s ... the distribution of krill biomass under various levels of fishing intensity as indicated by the ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 79–97 : Автор(ы): Butterworth, D.S. and R.B. Thomson
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Analysis of haul data from the South Georgia krill fishery
: Data from individual hauls carried out by vessels operating in the South Georgia krill fishery between ... several hauls were undertaken by each vessel (average 7.9 in 1993,9.9 in 1995, and 7.0 in 1996), with ... out by vessels operating in the South Georgia krill fishery between 1994 and 1996 were examined and a ... along the shelf edge on the northern coast of the island. Each day several hauls were undertaken by ... times, bathymetry, shelf-break, CCAMLR INTRODUCTION management adopted by CCAMLR regards such ... environmental (see review by Miller and Hampton, 1989) and socio-economic factors. Although socio-economic ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 9–30 : Автор(ы): Trathan, P.N., I. Everson, E.J. Murphy and G.B. Parkes
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