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Application of the bootstrap-method in assessment of target strength regression parameters on the basis of in situ measurements
measurements with the fish size composition from trawl catches and should be accompanied with accuracy indices ... Abstract: Target strength (TS) as a function of fish length (L) must be known to estimate fish ... density in acoustic survey. This TS-length function may be estimated by comparing in situ acoustic ... characterizing the uncertainty of its parameters. We show that the bootstrap–method is a highly efficient method ...
Meeting Document : WG-FSA-SAM-04/09 : Autor(es): P.S. Gasyukov and S.M. Kasatkina (Russia)
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Modelling the circumpolar distribution of Antarctic toothfish using correlative species distribution modelling methods
that may be included in future work. Methods for dealing with issues such as sampling bias in model ... Abstract: This paper presents correlative species distribution modelling methods that could be ... environmental covariates that could be included in these models are presented for discussion and feedback, as ... select number of test statistic (i.e. AUC, max Kappa and point-biserial correlation) with some ...
Meeting Document : WG-FSA-14/65 : Autor(es): L.M. Robinson, K. Reid (Secretariat)
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Differences in distribution and population structure of krill (Euphausia superba) between penguin and fur seal foraging areas near Seal Island
showed a diurnal vertical migration, tending to be at deeper depth range (50-100 m deep) in the day time ... nongravid krill, were dominant with occasional occurrences of juveniles (modal length 21 mm). In contrast ... foraging areas over inshore foraging areas were discussed. Author(s): T. Ichii, H. Ishii (Japan), J.L ...
Meeting Document : WG-KRILL-92/27 : Autor(es): T. Ichii, H. Ishii (Japan), J.L. Bengtson, P. Boveng, J.K. Jansen (USA) and M. Naganobu (Japan)
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Informes de pesquerías de 2012
These Fishery Reports should be read in conjunction with the WG-FSA-12 Report (865.02 KB). The ... spp. (TOT) in Division 58.4.3a (546.18 KB) APPENDIX T Fishery Report: Exploratory fishery for ...
Page : Site Section: Publications
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Age, growth and size at sexual maturity of Macrourus carinatus caught as by-catch in Australian sub-Antarctic trawl fisheries
growth parameters for both sexes combined were: L ∞ = 690 mm, K = 0.069 and t 0 =-2.4. The size at sexual ... to that from Macquarie Island. Otolith and body size relationships are presented for M. carinatus ... accordance with this, anal length will be used as the standard for this species in all future work ... from Macquarie and Heard and McDonald Islands with that derived by Morley and Belchier (2002) for M ... Ross Sea (Figure 6). These were signifi cantly different when compared with a lack-of-fi t test ... separation of sites and the distinction between species, it should be noted that the under-representation ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 139–151 : Autor(es): van Wijk, E.M., R. Williams and A.J. Constable
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Characterisation of the Antarctic polar frontal zone to the north of South Georgia in summer 1994
to be consistent with the physical observations. A second examination of the region after a period of ... PF (and thus the PFZ) is known to be influenced by topographic steering, while local bathymetry has ... first. Associated with the PF was a narrow, high-speed flow embedded in broader, slower moving regions ... . This high-speed flow was found to have a geostrophic component of velocity that was slower than ...
Meeting Document : WG-EMM-97/40 : Autor(es): Brandon, M.A., Trathan, P.N., Murphy, E.J.
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Global relationships amongst black-browed albatrosses: analysis of population structure using mtDNA and microsatellites
Abstract: The population structure of black-browed (Thalassarche melanophris and T. impavida) and ... grey-headed (T. chrysostoma) albatrosses was examined using both mitochondrial DNA (mtDNA) and ... (T. impavida). T. melanophris from Campbell Island contain birds from each of the three groups ... could be the result of differences in foraging and dispersal patterns. Breeding black-browed albatrosses ...
Meeting Document : WG-FSA-01/19 : Autor(es): T.M. Burg and J.P. Croxall (United Kingdom)
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WG-FSA-05
potential interactions with fisheries K. Lawton, R. Kirkwood and G. Robertson (Australia) WG-FSA-05/15 ... pêche à la légine australe (Dissostichus eleginoides) à Kerguelen (secteur Indien de l039;océan ... others by-catch fishes fecundity with gonads histological pictures from Ross Sea region and data on ... (CCAMLR Division 58.5.2) based on a random stratified trawl survey in June 2005 A.J. Constable, T. Lamb ...
Meeting
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The Second International Krill Symposium
University of California, Santa Cruz, from 23–27 August 1999. Further information can be found on the website ... International Symposium on Krill which has been partially sponsored by CCAMLR. The symposium will be held at the ...
Meeting Document : WG-EMM-99/23 : Autor(es): S. Nicol (Australia) and M. Mangel (USA)
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A hypothetical life cycle for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region
linked to the high-resolution global environmental model (HiGEM). Model outputs indicated that the ... locations of toothfish larvae after an 18–24 month period were moderately consistent with the distribution ... of the smallest toothfish taken in the toothfish fishery. The hypothesis presented is that D. mawsoni ... continental shelf; south onto the Ross Sea shelf; or eastwards with the eastern Ross Sea gyre, settling out ... includes a sea-ice model that interacts with both the ocean and atmosphere components of the climate ... . (1995) and North (2002) considered that D. eleginoides eggs were most likely to be pelagic, but did ... not rule out the possibility that they could initially be demersal, as suggested by Zhivov and ... assuming a winter–spring spawn- ing time with a peak in July/August would sug- gest an egg development time ...
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