Search results
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A quantified Bayesian Maximum Entropy estimate of Antarctic krill abundance across the Scotia Sea and in small-scale management units from the CCAMLR-2000 Survey
to gener- ate complete images from sparse point data in many disciplines, from astrophysics (e.g. Weir ... Paper Title: A quantified Bayesian Maximum Entropy estimate of Antarctic krill abundance across ... : A probabilistic Bayesian Maximum Entropy (MaxEnt) technique was used to estimate the abundance of ... Survey of Area 48 (CCAMLR-2000 Survey) and to map the density distribution of krill across the survey ... area. Density values for the unsurveyed off-transect portions of the survey area were inferred, and ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 97–116 : Author(s): Heywood, B.G., A.S. Brierley and S.F. Gull
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Large-scale peculiarities of phytocenosis species composition in the surface layer in the Antarctic Atlantic and Indian Ocean sectors
Paper Title: Large-scale peculiarities of phytocenosis species composition in the surface layer ... dominated over vast areas within the distribution of the south peripheral waters and the centre of the ... Weddell Gyre. In the eastern Weddell Gyre a great change in the composition of phytoplankton species was ... , the Convergence Zone proper, south periphery of the Antarctic Circumpolar Current). A great change in ... to take plankton samples. Filtration was usually conducted at a speed of 1 litre per 1-2 minutes ... typical for this region. It is quite natural because at least waters of three types are present there. In ... waters. C. criophilum was dominant in samples taken at later dates. A substantial proportion of T ... of eddies. Higher phytoplankton biomass on tack V at 58° to 59°S (see Figure 6) and on tack VI at 59 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 201-214 : Author(s): Makarov, R.R. and K.P. Fedorov
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Homogeneity of Adélie penguins as krill samplers
Paper Title: Homogeneity of Adélie penguins as krill samplers Abstract / Description: A nested ... penguins in the length of krill eaten, using data from Esperanza Bay. The variance component-0.26 was not ... penguins to estimate parameters of the prey population without discriminating by sex, weight or other ... design allows the calculation of the components of variance at each level and testing of the null ... hypotheses that the variance component added at each particular level is zero (Bliss, 1967). The power of ... penguins (Level 2) were recaptured at least once during the experiment, yielding a total of 23 samples ... WG-CEMP-92/26 HOMOGENEITY OF ADELIE PENGUINS AS KRILL ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 253–257 : Author(s): Marschoff, E. and B. Gonzalez
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Marine mammals and demersal longline fishery interactions in Crozet and Kerguelen Exclusive Economic Zones: an assessment of depredation levels
Exclusive Economic Zones: an assessment of depredation levels Abstract / Description: Interactions between ... whales. These two species, alone or in co-occurrence with each other, were observed in 71% of the 1 308 ... two species, alone or in co-occurrence with each other, were observed in 54% of the 6 262 longlines ... monitored. Interactions were observed in all fishing areas. The effect of depredation was assessed by ... event during which animals of both species were reported at least once during the same haul. The rate ... 2005 C um ul at ed e ff ec ti ve s of id en ti fi ed in di vi du al s 2003 ... fi sheries: modalities of opportunistic feeding for bottlenose dolphins at Lampedusa Island (Italy ... EXCLUSIVE ECONOMIC ZONES: AN ASSESSMENT OF DEPREDATION LEVELS C. Roche and C. Guinet CEBC-CNRS, UPR 1934 ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 67–82 : Author(s): Roche, C., C. Guinet, N. Gasco and G. Duhamel
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Biomass, abundance and distribution of fish in the Kerguelen Islands EEZ (CCAMLR Statistical Division 58.5.1)
Paper Title: Biomass, abundance and distribution of fish in the Kerguelen Islands EEZ (CCAMLR ... conducted from September to October 2006 in the northern part of the Kerguelen Plateau (CCAMLR Statistical ... stratified stations. Estimates of biomass and abundance were produced for eight commercial species. The total ... biomass was 245 000 tonnes and Patagonian toothfish (Dissostichus eleginoides) accounted for half of the ... included in CCAMLR Statistical Division 58.5.1. The zone is located at the northern tip of the Kerguelen ... at South Georgia (Kock, 1992). The discovery of a deep-sea stock of Patagonian tooth- fish ... . The krigeage method used was the point kriging, which estimates the values of the points at the grid ... on Everson’s scale with modes at 35 and 38 cm, ages 4 and 5, 4.78 million specimens, 22.5% of fish ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 1–32 : Author(s): Duhamel, G. and M. Hautecoeur
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By-catch, growth and feeding of Antarctic juvenile fish taken in krill (Euphausia superba Dana) fisheries in the South Georgia area, in 1992
Paper Title: By-catch, growth and feeding of Antarctic juvenile fish taken in krill (Euphausia ... an investigation of juvenile Antarctic fish caught during krill fishing by the FV Grigory Kovtun in ... : Champsocephalus gunnari and Nototheniops larseni. The frequency of occurrence of juvenile fish was 18.2% when all ... krill tows were included and 45.5% when only tows made in shelf waters were considered. The abundance of ... between them. At present, as our data on the by-catch of juvenile fish are very limited, it is difficult ... the waters outside the continental shelf. Future research should thus be directed at the study of ... the juvenile stock at age l+ and the rate of natural mortality concurrently with the total taken as ... of the nearshore fish populations at South Georgia. Br. Antarct. Surv. Bull., 59: 63-74. CCAMLR ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 129–142 : Author(s): Pakhomov, E.A. and S.A. Pankratov
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Integration of CPUE data into assessments using the Generalised Yield Model
Paper Title: Integration of CPUE data into assessments using the Generalised Yield Model Abstract ... accorded high priority to the development of methods of integrating different indicators of stock status ... the use of importance sampling, for incorporating information on trends in standardised CPUEs into GYM ... assessments. The use of the method is illustrated using data for Patagonian toothfish (Dissostichus ... catches. Recruitme~~ts in future years and in determining the age composition of the population at the ... standardised CPUE trends at all, and crucially they generally indicate higher stock sizes at the end of the ... Constable was used successfully at the 2000 meeting of WG-FSA (SC-CAMLR, 2000). It should also be noted ... CCAMLR Science, Vo l . 8 (2001): 65-74 INTEGRATION OF ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 65–74 : Author(s): Kirkwood, G.P. and A.J. Constable
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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 ... computer database: • date, time and haul duration; • coordinates at start of haul; • vessel course and ... towing speed; • haul depth; and • catch per haul. At present the database consists of information on ... /days per five-day period at the end of February to March 1989. Such a level of fishing effort would ... caught in the nearshore zone of Subarea 48.1 at the current rate is comparable with the total amount of ...
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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Modelling and decision making as part of the CCAMLR management regime
)1;OJDKYfTEJIb- HOCTb :3TAflOB OfPAHYfLJEHYf5I ,lLAHHhlE YfcCJIeAOBaT b B03MO:>KHbIe MeXaHH3Mbl ... Paper Title: Modelling and decision making as part of the CCAMLR management regime Abstract ... environment essential for the effective management of the Antarctic marine ecosystem within the requirements ... of CCAMLR Article II. Eight attributes (purpose, description, variables, driving forces, time ... development of suitable simulations of important Antarctic marine ecosystem interactions and to facilitate the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 295-322 : Author(s): Miller, D.G.M.
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Soviet proposals for a program of ecosystem monitoring in the Commonwealth Sea and Prydz Bay
Paper Title: Soviet proposals for a program of ecosystem monitoring in the Commonwealth Sea and ... Monitoring Program in the Prydz Bay area is proposed. Major components of the program are observations of ... to provide adequate assessment of all ecosystem parameters and characteristics. It covers at least ... horizontal and vertical distributions of water temperature and salinity at standard depths. The position ... vertical distributions of silicon, phosphorus, nitrites, nitrates, and oxygen at standard depths ... - 355 - WG-CEMP-86/7 SOVIET PROPOSALS FOR A PROGRAM OF ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 355-362 : Author(s): USSR