Résultats de la recherche
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Optimization of survey sampling design in the detection of interannual variability and prey size selectivity in the diet of penguins
20 minutes; and the laboratory time was one person working for one hour to sort and clean the well ... interval for ai resulted in n=16. This value defines the size of sub-samples at the year level assuring ... ), comparison between years results naturally in a new level added at the top. Exact F tests are obtained ... dividing the mean square for "years" group by the mean square for "dates-within-years" group. Given the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 551–559 : Auteur(s): Marschoff, E. and B. Gonzalez
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Preliminary analyses of data collected during experimental phases of the 1994/95 and 1995/96 Antarctic crab fishing seasons
extended (in a slightly revised format) for another three f ishing seasons (to the 1997/98 split-year ... . spinosissima, a number of interesting points can be raised from the results presented in Figure 3. First ... on 20 November, 1995. During this period, the vessel hauled 79 strings of gear which were set in ... e f i sh ing s ea sons ( sp l i t -years 1993/94 t o 1995/96) (CCAMLR, 1993) and has been ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 141–159 : Auteur(s): Watters, G
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Experimental evaluation of the effectiveness of weighting regimes in reducing seabird by-catch in the longline toothfish fishery around South Georgia
required by the conservation measure (6 kg at 20 m intervals) was derived from a study of bird strikes in ... petrel T = Treatment Set No. 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2 1 22 23 ... PRO 32 34 47 18 45 50 45 30 47 21 42 29 42 70 39 48 42 3 8 40 10 9 4 45 7 47 17 14 3 ... 19 20 2 1 22 23 24 DIM = Black-browed albatross C = Control DIC = Grey-headed albatross T ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 119–131 : Auteur(s): Agnew, D.J., A.D. Black, J.P. Croxall and G.B. Parkes
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Toothfish, Dissostichus eleginoides, at South Georgia
Dissostichus eleginoides fishery at South Georgia has expanded greatly in recent years. It has been claimed ... Georgia has expanded greatly in recent years. It has been claimed that the exploited fish are senescent ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 255–261 : Auteur(s): Everson, I. and S. Campbell
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Feeding patterns of nine species of Antarctic fish and assessment of their daily food consumption
be about five times their body weight. File: 20-Pakhomov-and-Tseitlin.pdf ... food items for Chionodraco hamatus and Cryodraco antarcticus were first-year matured C. wilsoni (SL=17 ... -20 cm) (37% each), P. antarcticum (15 and 22% respectively) and T. eulepidotus (17 and 19%). All ... production of no less than 20 to 25 thousand km2, is required for a biomass of this size. If one assumes ... ) Trematomus 219 118 ±6 0.022 ± 0.001 eulepidotus (50 - 650) (0 - 0.094) Trematomus 243 380±20 0.038 ± 0.002 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 321–333 : Auteur(s): Pakhomov, Y.A. and V.B. Tseitlin
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Long-term trends in the foraging patterns of female Antarctic fur seals at South Georgia
number of feeding trips, with 1979 being the year with the fewest trips made during the entire 20 year ... teeth from Bird Island, South Georgia, was analyzed to estimate: 1) birth year of individuals, and 2 ... feeding trips, with 1979 being the year with the fewest trips made during the entire 20 year period ... from Bird Island, South Georgia, was analyzed to estimate: 1) birth year of individuals, and 2) the ... voyages ont ete les moins nombreux sur la periode de 20 ans. Sous presse dans Sahrhage, D. (ed ... viajes hechos durante todo el periodo de 20 anos. En prensa en: Sahrhage, D. (ed). Antarctic Ocean and ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 441-443 : Auteur(s): Bengtson, J.L.
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Integration of CPUE data into assessments using the Generalised Yield Model
/ Description: For the last three years, CCAMLR's Working Group on Fish Stock Assessment (WG-FSA) has ... year Y is the latest year for which we have data from the fishery, and simulation years Y+l to Y+P ... abunda~lce of the stock in a given year for each trial is provided in output tables. In tlie absence of ... been presented In CCAMLR as median abundance In each year with 95'% confidence Integration of CPUE ... abundance for that year given the uncertainties in the starting size of the population and the range of ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 65–74 : Auteur(s): Kirkwood, G.P. and A.J. Constable
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Acoustic estimates of krill biomass in the Elephant Island area: 1981–1993
density over the 13-year period were 1 703 x 103 tonnes and 53.2 g/ 2. File: 01hewitt-demer.pdf ... years 1981 to 1993 (with the exception of 1982 and 1986). Estimates for 1981 to 1991 are based on ... /m2. Average biomass and average density over the 13-year period were 1 703 X 103 tonnes and 53.2 g ... surveys (30 mm and 41 mm). Klindt's biomass estimate for the 1985 survey may be adjusted by a factor ... -year period was l 703 X 10"onnes and 53.2 g/m2. The lowest estimate of average biomass density was ... . * excluding biomass of observed superswarms Year 1981 1983 1984 1984 1985 1987 1988 1989 1990 ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 1–5 : Auteur(s): Hewitt, R.P. and D.A. Demer
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Biology and harvesting of Dissostichus eleginoides around the Kerguelen Islands (Division 58.5.1)
from year to year and highly dependent on the harvestable resources of Champsocephalus gunnari. Vital ... . Fishing effort and corresponding catches are very variable from year to year and highly dependent on the ... les plus frequemment observes dans les captures au chalut (30-60 a 50-100 cm) appartiennent aux ... Kerguelen Islands. J.lchthyoZ. 30 (8): 122-125. DUHAMEL, G. 1981. Caracteristiques biologiques des ... ) obtenus depuis la creation d'une ZEE. Annee australe Nombre Nombre Capture Rendement (1 July - 30 June ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 85–106 : Auteur(s): Duhamel, G.
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Fishing for toothfish using pots: results of trials undertaken around South Georgia, March–May 2000
625 Number 435 20 193 Table 6: T h e number and ercentage o f female Pnvalonlis foriiiosn, P ... possibility of retaining legal-sized crab by-catch and fishing at all times of the year. This is possible ... Pilling et al. predation, a major problem in certain areas, (2000b), which brings together the result of ... . A drawstring held the bottom mesh together in the middle. This allowed pots to be emptied easily ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 93–105 : Auteur(s): Agnew, D.J., T.M. Daw, G.M. Pilling and M.G. Purves