Search results
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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 ... For the last three years, CCAMLR's Working Group on Fish Stock Assessment (WG-FSA) has accorded ... in the final year and of the proportion of times the spawning stock biomass (SSB) fell below 20% of its pre ... three years, CCAMLR's Working Group on Fish Stock Assessment (WG-FSA) has accorded high priority ... ). B n a ~ ~ o i i c r a T b e n p e a n a r a e T c x M e T o n n K n I o u e H I 4 z r l t ~ @ O p ~ a u ~ i t l 0 TeHAeHut iRX CTEiHHapTE.i'30BaHHOTO CPUE B OUeHKM G Y - ~ 0 n e n l . i . M e ~ o n OCHOBaH ... ~ p e 6 y e ~ BHeCeHMR TOJlbKO He7HaYMTeJIbHblX I . I ~ M ~ H ~ H M ~ ~ B K0MIIbK)TePHYK) nporpaMMy, BbIn ...
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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Australian research on Antarctic bird and seal diets
Heard and Macquarie Islands have been collected during the last seven years. Published and unpublished ... -Antarctic Heard and Macquarie Islands have been collected during the last seven years. Published ... 20 -5 7 21-34 40.63±7.85 27 .36±1 .83 Location: Davis Station (68°30'S: 77°50'E) Ti me ... ): Overall Prehatch Posthatch Posthatch (1984) (1985) E. crystal/orophias 12.10 6.20 18.00 13.30 ... E. superba 42.60 5.20 76.90 66.30 Fish 4.15 3.60 4.70 20.00 Amphipods 29.15 58.20 0.10 0.50 Others 13.60 ... ) 20 38 3' 1 58 400 39 29 32 o Location: Sea ice off Davis Station (68°30'S: 77°50 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 231-249 : Author(s): Williams, R.
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Acoustic estimates of krill biomass in the Elephant Island area: 1981–1993
for the years 1981 to 1993 (with the exception of 1982 and 1986). Estimates for 1981 to 1991 are based ... density over the 13-year period were 1 703 x 103 tonnes and 53.2 g/ 2. File: 01hewitt-demer.pdf ... Acoustic estimates of krill biomass in the vicinity of Elephant Island are presented for the years ... ) and biomass densities range from 2.5 g/m2 to 134.5 g/m2. Average biomass and average density over the 13-year ... in the vicinity of Elephant Island are presented for the years 1981 to 1993 (with the exception of 1982 and 1986 ... g/m2. Average biomass and average density over the 13-year period were 1 703 X 103 tonnes and 53.2 ... at 120 kHz using the modal krill lengths for each of the surveys (30 mm and 41 mm). Klindt's biomass ... and average density over the 13-year period was l 703 X 10"onnes and 53.2 g/m2. The lowest estimate ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 1–5 : Author(s): Hewitt, R.P. and D.A. Demer
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Midwater trawl catchability as an aspect of a quantitative assessment of krill biomass conducted using a trawl census survey
swann depth (metres) 42 29 41 24 29 25 30 21 cr, swann depth 13 20 13 8 10 14 16 8 Mean swann ... 47 59 30 23 20 29 17 cr, mean swann length (metres) 15 16 19 7 10 7 20 4 Swann density field ... Ha npHMepe TpaJIa AH3eKCa-KH,l(,l(a nOKa3aJI, qTO nOCJIe,l(HHe Heu,eJIeco06pa3HO HCnOJIb30 ... of 20 mm twine. This protects the trawl bag from mechanical damage. Features of this particular trawl ... midwater trawls and small research trawls, in this case using an Isaacs-Kidd trawl, demonstrated the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 257–272 : Author(s): Kasatkina, S.M.
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Target strength studies on Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea
: TS 38 = 36.83Log TL(cm) –103.62 (N = 18); TS 120 = 34.75Log TL(cm) –84.20 (N = 19); TS 200 = 26.71Log ... of the continental slope and shelf of the Ross Sea at depths from 30 to 120 m, during the Italian expeditions of 1997 ... TL(cm) –103.62 (N = 18); TS120 = 34.75Log TL(cm) –84.20 (N = 19); TS200 = 26.71Log TL(cm ... and shelf of the Ross Sea at depths from 30 to 120 m, during the Italian expeditions of 1997/98, 2000 ... (from 12–15% of first year to 20–32% dry weight (DW) of second year; DeVries and Eastman, 1978 ... –60.47 0.23 –48.10 3.23 –44.25 1.58 –61.30 0.20 –42.64 1.88 –43.83 3.82 147.5 6.5 –63.00 0.32 –43.71 ... 2.31 –43.20 3.74 –57.78 0.30 –42.36 0.22 –43.23 0.25 166.3 6.3 –59.29 0.30 –45.36 0.23 –40.87 0.13 ... be r 35 3 13 21 41 8 45 3 20 9 56 93 3 30 11 5 47 13 7 % b y nu m be r 82 ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 75–104 : Author(s): Azzali, M., I. Leonori, I. Biagiotti, A. De Felice, M. Angiolillo, M. Bottaro and M. Vacchi
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Distribution and size of Antarctic krill (Euphausia superba Dana) in Polish commercial catches taken in the Atlantic sector of the Southern Ocean from 1997 to 1999
Shetland 1999 0 5 10 15 20 25 30 35 40 45 50 55 60 Length (mm) Fr eq ue nc y (% ) Elephant ... , therefore their results do not refl ect the year-round structure of krill concentrations. Additionally ... concentration can be as dense as 30 000 specimens per m-3 of water (Hamner et al., 1983). Hardy and Günther ... the best commercial catches of krill. Each year, the periods when krill concentrations were found ... Paper Title: Distribution and size of Antarctic krill (Euphausia superba Dana) in Polish ... commercial catches taken in the Atlantic sector of the Southern Ocean from 1997 to 1999 Abstract ... / Description: The distribution and internal structure of commercial krill concentrations were investigated in ... the areas of the South Shetland, Elephant, South Georgia and South Orkney Islands in the spring and ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 83–105 : Author(s): Jackowski, E
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Seasonal and inter-annual variability in the distribution of Electrona carlsbergi in the southern Polar Front area (the area to the north of South Georgia is used as an example)
concentrations throughout the year. Results of surveys showed that the distribution and behaviour ... of biomass of E. carlsbergi in the area indicated that its variability during the year is related ... to form large concentrations throughout the year. Results of surveys showed that the distribution ... the year is related to parameters of spatial and vertical distribution of fish. Interannual variability ... the year. Results of surveys showed that the distribution and behaviour of E. carlsbergi are strongly ... of biomass of E. carlsbergi in the area indicated that its variability during the year is related ... a egalement ete etudiee. Pe310Me 3a nepHO,lt C 1987 no 1989 rr. BllliPO (CCCP) 6bIJIO BbInOJIHeHO weCTb ... ° 3.,lt. 3TOT yt.lacToK HaXO,ltHTC5.I B npe,lteJIax nOJI5.lpHotl
30HbI, r,lte HaH60JIee ... Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 337–367 : Author(s): Kozlov, A.N., K.V. Shust and A.V. Zemsky
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Otolith microstructure of juvenile mackerel icefish (Champsocephalus gunnari) (Channichthyidae) in the South Georgia area
year classes arising from spawning in the 1999/2000 and 2000/01 split-years. The mean width of daily ... year class lasted four months. This was estimated based on a retrospective count of daily increments ... . TL varied from 5.5 to 10.4 cm for fish in their first year (120–250 days) to 12.5–13.3 cm in 1-year ... fish between consecutive year classes. File: 10shcherbich.pdf ... the year is de- fi ned as the period from 1 July to 30 June of the next year (Shcherbich, 1975). From ... ) and 2000/01 (20 specimens) split-years. The 1999/2000 year class included 1-year-old fi sh (1+), which ... survey of juveniles in February–March 2002 on the South Georgia shelf. Juvenile fi sh comprised two year ... classes arising from spawning in the 1999/2000 and 2000/01 split-years. The mean width of daily otolith ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 173–181 : Author(s): Shcherbich, L.V
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An assessment of the mackerel icefish (Champsocephalus gunnari) off Heard Island
respectively. The effects of a constant catch level (in tonnes) over a 20-year period were evaluated ... period (20 years is used here) should not be increased by more than 0.05. Combining ... over a 20-year period, and as such they can be continued for some years without the need for annual ... ~ p e 6 y m ~ p a 3 ~ e n b ~ o r o ynpasneHaa 14x npoMbrcnoM. I I p e a o x p a ~ t ~ ~ e n b ~ b ~ e orpaHmeHm Ha BbInOB, PaCCYMTaHHbIe ... conducted in 1990, 1992, 1993 and 1997. The assessments include estimates of all the parameters required ... of 900 tonnes in the 1997/98 season and 600 tonnes in 1998/99. File: 06delamare-etal.pdf ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 79–101 : Author(s): de la Mare, W.K., R. Williams and A.J. Constable
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Observations on haul-out patterns and trends in the breeding populations of southern elephant seal at Península Valdés (Patagonia) and Stranger Point (25 de Mayo - King George I.)
present information on the last seven years in two breeding places belonging to the Georgia stock. Two ... Stranger and Elefante Point was fixed (62°14' S '" - 58°30' W). The other place was located at Peninsula ... was determined to be representative of the original area and it was used every year to collect the information ... ashore corresponding to 27/10, rank ± 3 to Stranger Point and to 30/9, rank ± 5 to Peninsula Valdes ... Paper Title: Observations on haul-out patterns and trends in the breeding populations of southern ... were taken into consideration: haul-out pattern and the female population trend. In both places, the ... intrinsic population growth rate is positive. In 1982, at Stranger Point, a sharp decrease of the female ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 453-463 : Author(s): Vergani, D.F., M.N. Lewis and Z.B. Stanganelli