Search results
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Krill (Euphausia superba Dana) resources and distribution in the Wilkes Land area in the seasons 1986 to 1989
biomass (tonnes), P _ pSH - shK p = average catch per hour of trawling (tonnes), S = total area ... of Area of Mean Catch Mean Density Total Biomass Number of Observation Localities Per Hour tonnes/square ... resources for subarea IT (64° to 66°S, 136° to 143°E). Sequential Period of Area of Mean Catch Mean ... 'S, 143° to 1500 E). Sequential Period of Area of Mean Catch Mean Density Total Biomass Number ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 149–162 : Author(s): Dolzhenkov, V.N. and V.P.Timonin
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An impact assessment framework for bottom fishing methods in the CAMLR Convention Area
to the total level of impact arising from the activity (e.g. numbers of by-catch species killed, amount ... of risk associated with that impact will occur subsequently, subject to the limits of existing ... ecological knowledge. Risk assessment in the CCAMLR context The limits of acceptable environmental risk ... - ings and the practical limits of taxonomic classifi- cation possible by fisheries observers under field ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 195–210 : Author(s): Sharp, B.R., S.J. Parker and N. Smith
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Modelling variability and estimating power to detect change in Adélie penguin fledgling weights
was limited to eight years and to the five-day periods 2–5 starting on 15 February and ending on 6 March ... and the limited gain from weighing more than 30 birds each year. This is the case for both one- and two-tailed ... be identified with only three years of monitoring available after some impact, and there was limited gain from ... limit to measurable weight. conclusions This study demonstrates the importance of estimating ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 191–200 : Author(s): Emmerson, L.M., C. Southwell and J. Clarke
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Age determination of Notothenia gibberifrons from the South Shetland Islands, Antarctic Peninsula subarea (Subarea 48.1)
., (1985). The limited number of Potter Cove fishes has not been included in this comparison ... °S 61<> 62° 60° 58° 56° W Figure 1: Catch sites of Notothenia gibberifrons sampled at two localities ... . Age en annees; limites et longueur moyenne en cm. Donnees sur longueur moyenne (cm) par rang d'age ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 143-160 : Author(s): Barrera-Oro, E.
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Spawning locations of mackerel icefish at South Georgia
included a total allowable catch and a prol~ibition on fishing during what is assumed to be the spawning ... the catch was just three, and no further specimens were taken on 22 or 24 April. Using a trawl ... in Cumberland West Bay on 5 April, Olsen (1955) reported a catch of 4 000 C, giinnari in a single haul ... -t the catches were counted and their numerical density (A) estimated as number per 10 000 cubic metres ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 107–118 : Author(s): Everson, I., A.W. North, A. Paul, R. Cooper, N.C. McWilliam and K.-H. Kock
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Natural mortality of grey rockcod (Notothenia squamifrons) in various areas of the Indian sector of the Southern Ocean
(T). This parameter is calculated according to the age of the oldest group in the catches (T m), comprising not less ... - [') T - [ , ( 2 ) where T = mean length of fish in the catch; [' minimum length of fish in the catch; [00 asymptotic ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 141–146 : Author(s): Zaitsev, A.K.
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Size and density of krill layers fished by a Japanese trawler in the waters north of Livingston Island in January 1988
five minutes on the echogram. The density of each layer was estimated from the catch, mouth area ... 16 out of 34 hauls. Catch per tow ranged from 1.1 to 23.0 tonnes during the co-operative survey ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 339–345 : Author(s): Endo, Y. and Y. Shimadzu
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Length-at-age in juvenile Patagonian toothfish (Dissostichus eleginoides)
began, infor- mation on the species was extremely limited (e.g. Everson, 1977; Kock et al., 1985; Kock ... , 1992). Due to the value of the resource and the rapid increase in the total catch of the fi shery ... in applying an age–length key outside the inferential limits of its sampling design (Ricker, 1975). To apply ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 1–10 : Author(s): Ashford, J., C. Jones, S. Bobko and I. Everson
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Phytoplankton distribution in the mixed layer: implication to krill abundance
will use the Ekman depth hE = lCu./f ( 1 ) as the upper limit to the depth of mixing, where ... is a scale of the largest eddy size in a stratified fluid. Stratification limits the vertical scale ... can be considerably different depending on the stratification but the size of largest eddy is limited ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 331–356 : Author(s): Yamazaki, H. and T.R. Osborn
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Homogeneity of body length composition of Antarctic krill within the commercial zone
trawl catches (hauls) was investigated by comparing length compositions from different parts of the same ... The homogeneity of krill (Euphausia superba) length composition in commercial trawl catches (hauls ... (Euphausia superba) length composition in commercial trawl catches (hauls) was investigated by comparing ... length compositions in commercial trawl catches (hauls), it is necessary to take a random sample from ... the haul. By analyzing length compositions of samples from trawl catches during a survey for blue ... different parts of the haul as possible in order to obtain an unbiased estimate of the catch length ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 17–28 : Author(s): Ichii, T.