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Otolith microstructure of juvenile mackerel icefish (Champsocephalus gunnari) (Channichthyidae) in the South Georgia area
comprised two year classes arising from spawning in the 1999/2000 and 2000/01 split-years. The mean width of ... 2001/02 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-old fish (477–533 days). The radius of the first annulus ranged from 0.7 to 1.3 mm. The ... the 1999/2000 (5 speci- mens) and 2000/01 (20 specimens) split-years. The 1999/2000 year class ... which the year is de- fi ned as the period from 1 July to 30 June of the next year (Shcherbich, 1975 ... classes arising from spawning in the 1999/2000 and 2000/01 split-years. The mean width of daily otolith ... otolith radius and annulus were measured by the ocular-micrometer (20 units = 1 mm). The second otolith ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 173–181 : Autor(es): Shcherbich, L.V
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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 ... Peninsula indicates that there were four periods of extensive ice cover during the last 18 years ... years is apparent and is consistent with features described by Stammerjohn and Smith (1996) for ice ... cover during the summer months and winter ice cover during years between periods of extensive ice cover ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 65–73 : Autor(es): Hewitt, R
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Options for allocating the precautionary catch limit of krill among small-scale management units in the Scotia Sea
fishery would be restricted in some of its traditional fishing grounds during years of low krill ... traditional fi shing grounds during years of low krill availability. Under all fi ve options there would be ... years. Furthermore, estimates of stand- ing stock do not include information regarding the aggregation ... E as t ( A P D P E ) 0. 10 49 33 3 0. 01 18 38 0. 00 93 30 0. 00 75 24 ... 30 6 0. 02 61 83 0. 02 06 65 0. 01 65 52 0. 01 65 57 A nt ar ct ic P ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 81–97 : Autor(es): Hewitt, R.P., G. Watters, P.N. Trathan, J.P. Croxall, M.E. Goebel, D. Ramm, K. Reid, W.Z. Trivelpiece and J.L. Watkins
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Physical oceanographic setting of the Siedlecki January 1987, South Shetland Island data set
the mesoscale activity. In summary (see Figure 1): The Weddell-Scotia Confluence brings together ... Discovery data of the 1920's and '30's also shows the invasion of Pacific deep water into the Bransfield ... Waters between 20"W and 170"W. Ant Map Folio Ser vol 6, American Geographical Society, N.Y. 168 ... .. + , ... ..... .0 .Il '- ~ ~ .1'1 ... .,9 "1 • ., ...... 1 +20(»-153 ... .. 15S. ,,.... ... 15' .. t5l .17 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 161-184 : Autor(es): Gordon, A.L.
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Results of Soviet investigations of the distribution and ecology of pelagic squids (Oegopsida) in the Southern Ocean
specimens of that total were identified as Brachioteuthis riisei. In recent years (1978-1984) the collection ... . 125 specimens of that total were identified as Brachioteuthis riisei. In recent years (1978-1984 ... during studies carried out by the Soviet Union in the years 1965-1977. Of that total, 125 specimens ... years ( 1978-1984), the collection was increased by two or three do%en specimens taken during ... the mantle is up to 20 cm. There are no data on the feeding habits. H. eltaninae is characterised as ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 79-111 : Autor(es): Lubimova, T.G.
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Characteristics of krill aggregations in the South Sandwich Islands subarea in January–February 2000
59°S 60°S 61°S 200 g m-2 20 g m-2 2 g m-2 0.2 g m-2 31°W 30°W 29°W ... 20.00 30.00 40.00 50.00 3 9 15 21 27 fre qu en cy ,% Fr eq ue nc y (% ) 50 40 30 20 10 ... 15 20 25 30 0 0.75 1.75 2.75 3.75 4.75 5.75 Fr eq ue nc y, % Ln, 30 25 20 15 10 5 0 ... were dominant in the zones of high density (over 20 g m-2) observed there. Vertical Distribution of ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 145–164 : Autor(es): Kasatkina, S.M., A.P. Malyshko, V.N. Shnar and O.A. Berezhinsky
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Quantifying vessel performance in the CCAMLR tagging program: spatially and temporally controlled measures of tag-detection rates
years 2000–01 to 2010–11. Document WG-FSA-11/46. CCAMLR, Hobart, Australia: 32 pp. Year of release ... calculation by using CCAMLR Science, Vol. 20 (2013): 73–80 73 QuantIfyIng vessel performance In the ccamlr ... , and ends when the quota has been fully caught which, in recent years, has been between 15 January ... window used was a circle with a radius of 20 km, centred on the location of the case fishing event ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 73–80 : Autor(es): Mormede, S. and A. Dunn
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Breeding numbers and success of Eudyptes penguins at Marion Island, and the influence of mass and time of arrival of adults
penguins (Eudyptes chrysolophus) over 26 years, as there was also for eastern rockhopper (E. chrysocome ... filholi) over 22 years, suggesting that overwintering conditions may influence the proportions of birds ... Marion Island Trypot Hole than at the other two colonies. Over the 20-year period, it averaged 0.49 ... (Eudyptes chrysolophus) over 26 years, as there was also for eastern rockhopper (E. chrysocome filholi ... ) over 22 years, suggesting that overwintering conditions may influence the proportions of birds ... close as possible to 20–24 November, when most birds are incubat- ing (Cooper and Brown, 1990; Cooper ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 175–190 : Autor(es): Crawford, R.J.M., B.M. Dyer, J. Cooper and L.G. Underhill
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Results of fish stock assessment survey, South Georgia, December 1987 - January 1988
Champsocephalus gunnari total length frequency (n=19366) 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 Length ... Class (cm) ! Pseudochaenichthys georg ianus total length frequency (n=2588) 5 10 15 20 25 30 35 ... =8586) 10 15 20 25 30 35 40 45 50 55 60 65 70 75 Length Class (cm) Figure 3: ( a) Length frequency ... 6 e r 5 o 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 Length Class (cm) NototheAia rossii ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 19-52 : Autor(es): McKenna, Jr., J.E. and S.B. Saila
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Preliminary model of krill fishery behaviour in Subarea 48.1
Elephant Islands in alternate years would result in an average yearly catch similar to that at present ... during alternate years. File: 06agnew-marin.pdf ... Livingston and Elephant Islands in alternate years would result in an average yearly catch similar to that ... land-based predators during alternate years. Resume Description d'un modele simple du comportement ... 48.1). Although only about 20% of the South Atlantic catch has been taken in Subarea 48.1, the catch ... periods (months were assumed to be 30 days long). Data from the Chilean fishery in Subarea 48.1 were ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 71–79 : Autor(es): Agnew, D.J. and V.H. Marín