Résultats de la recherche
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Fish stock assessment survey in Subarea 48.3
previous year and is not an artefact of the sampling technique or survey design. 30 Further evidence ... 1 22 1 6 13 53 19.80 42 44.30 463 27 2 22 1 10 10 53 28.40 42 18.20 232 30 3 22 1 14 20 53 26.00 ... 6.00 188 30 18 26 1 11 58 53 48.20 38 23.80 183 30 19 26 1 14 32 53 38.00 37 51.00 176 21 20 27 1 4 ... 46.50 36 54.00 203 20 26 28 1 6 43 53 43.70 36 37.00 218 30 27 28 1 9 18 53 45.50 36 28.00 304 30 28 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 25–67 : Auteur(s): Everson, I., G. Parkes, K.-H. Kock, S. Campbell, Z. Cielniaszek and J. Szlakowski
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Areal and seasonal extent of sea-ice cover off the northwestern side of the Antarctic Peninsula: 1979 to 1996
four periods of extensive ice cover during the last 18 years. Variability in seasonal timing, areal ... extent, seasonal duration and persistence of sea-ice over multiple years is apparent and is consistent ... ice cover during years between periods of extensive ice cover decreased during the second half of the ... periodicity of five to eight years in ice cover and note a five-year periodicity apparent in the air ... d'un secteur de 1.25 X 10" km2 au large de la partie nord-ouest de la peninsule Antarctique met en ... curves of sea-ice cover were drawn from monthly estimates for each year (Figure 2). The area under the ... subsampled area in km2 during the ith year and jth month. RESULTS AND DISCUSSION The Bellingshausen Sea ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 65–73 : Auteur(s): Hewitt, R
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Changes in the fish biomass around Elephant Island (Subarea 48.1) from 1976 to 1996
from 1978/79 to 1988/89, with most of the commercial harvesting taking place in the first two years of ... class; fish from this year class were 20 to 25 cm long in January/February 1976 and 30 to 37 cm in ... -year-old fish (15-20 cm long) made up a considerable proportion of the fish caught during the survey ... (cm) Length (cm) Length (cm) 5 10 15 20 25 30 35 40 45 50 55 Length (cm) Length (cm ... (cm) 10 20 30 40 50 60 70 Length (cm) 1976: no data 10 20 30 40 50 60 70 Length (cm) 10 20 ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 165–189 : Auteur(s): Kock, K.-H
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Bias in the estimation of krill yield from using a deterministic formulation of the median unexploited spawning biomass
perio . Table 2: Escapement of spawning biomass at the end of 20 and 30-year projections for different ... and for three levels of y - 0.15, 0.2 and 0.4. Projections for 20 years and 30 years were undertaken ... spawning biomass after 20 and 30 years relative to median So in each run with no fishing was 1.099 and ... : The probability of depleting the spawning biomass during 20-year projections for different levels of y ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 1–8 : Auteur(s): Constable, A.J. and W.K. de la Mare
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Analysis of trends in Japanese krill fishery CPUE data, and its possible use as a krill abundance index
t ot al 0 5 10 15 20 25 30 -150 -100 -50 0 50 100 150 CPST -3 -2 -1 0 1 2 3 -150 -100 ... -50 0 50 100 150 Quantiles of standard normal R es id ua ls Log10CPT 0 10 20 30 40 -1.5 ... id ua ls Residuals P er ce nt o f t ot al Log10CPTT 0 10 20 30 -1.0 -0.5 0.0 0.5 1.0 1.5 ... Quantiles of standard normal Residuals Log10CPD 0 10 20 30 40 -1 0 1 2 -4 -2 0 2 4 -1 0 1 2 R ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 1–28 : Auteur(s): Kawaguchi, S., S. Candy, S. Nicol, K. Taki and M. Naganobu
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Krill (Euphausia superba Dana) resources and distribution in the Wilkes Land area in the seasons 1986 to 1989
for Fisheries 3 The annual period used is the split-year 1 July to 30 June. Split-year is denoted by ... 1986 50 12.2 1000 50.0 20 to 21 April 3 1986 300 3.5 158 47.5 24 to 30 April 4 1987 127 14.0 1510 ... . As it turned out, during each year of observation aggregations of krill were observed most ... the calendar year in which the split-year ends, i.e., 1989 indicates the split-year 1988/89). 151 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 149–162 : Auteur(s): Dolzhenkov, V.N. and V.P.Timonin
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The survivorship of rays discarded from the South Georgia longline fishery
made at 6 and 12 hours to establish the condition of each animal. During the initial stages of the ... additionally signifi cant factor was sex, although there were suggestions that wind speed and animal size ... 12 hours, adjusted for the ‘50% survivorship’ category of Table 1. 0% 20% 40% 60% 80% 100 ... 20 0 Endicott and Agnew 160 Table 4: Results of a binomial GLM in S-plus examining the ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 155–164 : Auteur(s): Endicott, M. and D.J. Agnew
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Quantification of Southern Ocean phytoplankton biomass and primary productivity via satellite observations and biogeochemical models (submitted to the 2008 Joint CCAMLR-IWC Workshop)
calculate primary productivity, usually in units of mmolC m–2 or mgC m–2 per unit time (day or year). In ... based on location and day of year, Copt can be fairly well estimated by Csat (Behrenfeld and Falkowski ... shelves/coasts, the marginal ice zone and open-ocean fronts. Their one-year time series of productivity ... highest monthly productivity number they calculated (based only on one year of data, 1997/98) was in ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 247–265 : Auteur(s): P.G. Strutton, N.S. Lovenduski, M. Mongin and R. Matear
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Small scale krill surveys: simulations based on observed euphausiid distributions
0 0.0 0.1 20% change in mean density 30% 40% 50 ... propositions de modeles de campagnes d'evaluation. La simulation met en jeu un certain nombre de voies ... and number of transects required to confidently detect changes in mean densities of 20 to 50 ... transects required to reliably detect changes of 20%, for instance, is 28 when the CV is 0.3 and 310 when ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 245–256 : Auteur(s): Agnew, D.J. and S. Nicol
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Age determination of Champsocephalus gunnari Lönnberg, 1905 (Channichthyidae) taken in the South Georgia area in 1990
-26 and 30-34 cm. Only vertebra samples (n =140) were used in age determination. Age groups from 1+ to ... /86 year classes. The first small peak corresponds with the strong 1988 year class. File: 17 ... had three peaks corresponding to size groups of 16-18, 24-26 and 30-34 cm. Only vertebra samples (n ... size composition correspond with fish of the 1987 and 1985/86 year classes. The first small peak ... corresponds with the strong 1988 year class. Re.sume En janvier/fevrier 1990, la Grande-Bretagne et ... points culminants correspondant aux groupes de taille de 16 a 18, de 24 a 26 et de 30 a 34 cm. La ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 285–293 : Auteur(s): Kochkin, P.N.