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Distribution of krill (Euphausia superba Dana) catches in the South Shetlands and South Orkneys
catch in Subarea 48.1 from December to March was taken within 40 km of the coast, and 90% within 80 km ... in all years 1988 to 1991. In 1987, 1988 and 1991, 75% of the catch in Subarea 48.2 between December ... consumption. Whilst the normal ratio of catch to consumption is relatively low (less than 27%), and the ... fishery may have to increase by a factor of 2 or 3 before ratios of catch to consumption approach maximum ... . CCAMLR currently has imposed a precautionary limit of 1.5 million tonnes on the kriIl catch from ... of more variable hydrographic conditions. About 50% of the catch in Subarea 48.1 from December to ... , 1988 and 1991,75% of the catch in Subarea 48.2 between December and March was taken within 80 km of ... ratio of catch to consumption is relatively low (less than 27%), and the fishery may have to increase ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 287–303 : Автор(ы): Agnew, D.J.
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Fishing ground selection in the Antarctic krill fishery: trends in patterns across years, seasons and nations
contributors to the total catch. A recent shift in operational timing towards later months within fishing ... the pre- cautionary catch limit for krill among small- scale management units (SSMUs) in Area 48. The ... major contributors to the total catch. A recent shift in operational timing towards later months ... evaluation. When considering options for subdividing catch limits, the behavioural patterns of fishing ... -scale catch and effort data). The STATLANT database contains all reported krill catches at FAO ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 117–141 : Автор(ы): Kawaguchi, S., S. Nicol, K. Taki and M. Naganobu
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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
of a precautionary catch limit, allocated by subareas (CCAMLR, 1992). In particular, the CCAMLR ... was 23 000 &. After the trawl was hauled aboard and the catch sorted (mainly by species), the total ... catch of krill was weighed and samples of krill were taken to conduct various measurements and ... biological analyses. Krill biomass at each station was estimated by dividing krill weight in the catch by ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 59–70 : Автор(ы): Sushin, V.A. and K.E. Shulgovsky
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Biomass, abundance and distribution of fish in the Kerguelen Islands EEZ (CCAMLR Statistical Division 58.5.1)
1 000 m, the limit of the POKER 2006 survey. Some shelf and slope species (mackerel icefish ... (Bathyraja eatonii) and Kerguelen sandpaper skate (B. irrasa)) extend deeper than 1 000 m, the limit of the ... analyse all catch in each trawl (including species identification, meas- urements, biological sampling ... the cruise determined the depth limit (1 000 m) of the studied area. The selected trawler was FV ... inner limit of the survey was defined by the 100 m depth isobath as this corresponds to the change in ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 1–32 : Автор(ы): Duhamel, G. and M. Hautecoeur
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Long-term monitoring of krill recruitment and abundance indices in the Elephant Island area (Antarctic Peninsula)
. Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of ... al., 1990). This northern limit of krill distribution is reached only during the period when krill ... the peak season the northern limit of krill distribution is located well south of 60"s. During the ... limit of the Antarctic Siegel et al. Table 1: Proportional recruitment index RI for l-year-old ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 19–35 : Автор(ы): Siegel, V., W. de la Mare and V. Loeb
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Maximum entropy reconstructions of krill distribution and estimates of krill density from acoustic surveys at South Georgia, 1996–2000
, I. Everson and D.G.M. Miller. 2002. Setting a precautionary catch limit for Antarctic krill ... D. Gresham. 1998. Fine-scale mapping of fi sh distribution from commercial catch and effort ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 91–100 : Автор(ы): Wafy, M.H., A.S. Brierley, S.F. Gull and J.L. Watkins
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Fishing for toothfish using pots: results of trials undertaken around South Georgia, March–May 2000
a pot fishing method to catch Patagonian toothfish (Dissostichus eleginoides) around South Georgia ... method successfully caught D. eleginoides, there was a large by-catch of crab species. The catch rate of ... eliminated bird by-catch. To capitalise on this feature, there is a need to improve the commercial viability ... of the method and minimise the quantity of by-catch. A number of potential changes are suggested to ... period March to May 2000, the UK undertook trials of a pot fishing method to catch Patagonian toothfish ... , there was a large by-catch of crab species. The catch rate of toothfish was notably lower than that ... achieved in the longline fishery. Importantly, the use of pots eliminated bird by- catch. To capitalise on ... ~~ant i ty of by-catch. A number of potential changes are suggested to this end. Resume De mars a ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 93–105 : Автор(ы): Agnew, D.J., T.M. Daw, G.M. Pilling and M.G. Purves
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Krill biomass in Area 48 and Area 58: recalculations of FIBEX data
precautionary catch limit contained in Conservation Measure 32/X, (SC-CAMLR, 1991a - paragraph 6.54) was based ... Marine Living Resources (CCAMLR) set precautionary catch limits for krill in Statistical Area 48 ... to set the precautionary catch limits, SC-CAMLR has requested that the FIBEX data should be re ... is typical of the areas where the precautionary catch limits were set. Most easily appraised are ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 157–181 : Автор(ы): Trathan, P.N., D.J. Agnew, D.G.M. Miller, J.L. Watkins, I. Everson, M.R. Thorley, E. Murphy, A.W.A. Murray and C. Goss
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Consideration of major issues in ecosystem monitoring and management
species can be counted on dry land or has to be estimated from trawl catch rates. In addition, there ... as the Critical Period Distance (CPD). The index is currently calculated as the krill catch within ... region. They showed that although a high proportion of the catch may be taken within the foraging ... –krill requirement for the location Kp. The other component is the krill catch Kc over the same period ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 213–232 : Автор(ы): Everson, I
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Changes in the fish biomass around Elephant Island (Subarea 48.1) from 1976 to 1996
decline in krill biomass on any of the higher-level predators. A precautionary catch limit for each ... Peninsula. By-catch species reported were bumphead notothenia (Gobionotothen gibberifrons), Scotia Sea ... MATERIAL AND METHODS The analysis was primarily based on catch compositions (in weight and numbers) of ... abundant species was estimated from catch-per-haul information using the minimum variance unbiased ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 165–189 : Автор(ы): Kock, K.-H
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