Resultados de la búsqueda
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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 ... had three peaks corresponding to size groups of 16-18, 24-26 and 30-34 cm. Only vertebra samples (n ... points culminants correspondant aux groupes de taille de 16 a 18, de 24 a 26 et de 30 a 34 cm. La ... rpynnaM 16-18, 24-26 H 30-34 CM. IIpH onpe.lleJIeHHH B03paCTa HCnOJIb30BaJIHCb TOJIbKO 06pa3~bl n03BOHKOB ... tres maximos correspondientes a los grupos de tallas de 16-18,24-26 Y 30-34 cm. Solo se utilizaron ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 285–293 : Autor(es): Kochkin, P.N.
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Validation of sink rates of longlines measured using two different methods
plastic bottles (bottle method). Sink rates measured to 2 m with bottles averaged 0.23 ± 0.07 m.s –1 ... measure sink rates to depths of more than 2 m down to the seabed. A major advantage of the TDRs is the ... , the sink rates to target depths of 2 and 20 m differed signifi cantly by 30% (Table 1). As the ... string of known length wrapped around empty plastic bottles (bottle method). Sink rates measured to 2 m ... readings were required. TDRs can be used to measure sink rates to depths of more than 2 m down to the ... bouteille). Avec les bouteilles, la vitesse d’immersion à 2 m était en moyenne de 0,23 ± 0,07 m.s–1, alors ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 179–187 : Autor(es): Wienecke, B. and G. Robertson
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Distribution of mackerel icefish (Champsocephalus gunnari) (Channichthyidae) around South Georgia at various stages of its life cycle
11 3 2 00 1 G iz hi ga M ea n le ng th (m m ) 10 8 10 8 10 8 99 30 / 5– 29 / 6 ... : 100–200, 201–300 and 301–500 m. The duration of each trawl was 30 min at a speed of 3–3.5 knots ... intervals to a depth of 500 m (see Figure 2). The relative frequency of occurrence of fi sh at each depth ... winter, catches of more than 100 individuals per 30 min trawl (8–15 cm) were taken at a bottom depth of ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 49–69 : Autor(es): Frolkina, Zh.A
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A comparison between otoliths and scales for use in estimating the age of Dissostichus eleginoides from South Georgia
. Sustainable exploitation rates should have been 20-30% of that based on age determinations from scales, in ... observer on board the longliner FV Kolyo Mar11 2 1 took samples from catches made between April and June ... 1-2-3 for Windows and SAS Version 4.0. To test the hypothesis that otoliths and scales give the ... of otoliths and scales in estimating toothfish age Table 2: Results from randomised block ANOVA ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 75–92 : Autor(es): Ashford, J.R., S. Wischniowski, C. Jones, S. Bobko and I. Everson
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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
M ar ch 10 1 75 3 91 4 12 7 24 2 32 24 0 24 0 44 1 30 9 A pr il 11 5 2 17 1 2 53 ... ne 49 5 46 6 45 1 75 6 19 99 Fe br ua ry 42 0 M ar ch 30 1 60 2 25 1 A pr il 54 5 ... in one concentration can be as dense as 30 000 specimens per m-3 of water (Hamner et al., 1983 ... . King George Island to Livingston Island) between February and June (Figure 2). The krill fi shery was ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 83–105 : Autor(es): Jackowski, E
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Results of a longline survey on seamounts in the southeast Atlantic and in Subarea 48.6 and Division 58.4.4
the isobaths and in depths down to 1 500-2 000 m. Numerically, catches were dominated by Patagonian ... toothfish (Dissostichus eleginoides), with 2 822 individuals caught (83% of total catch). Grenadiers of the ... 0107 1814 1903 1917 1944 1832 1844 Date 28/10/97 29/10/97 30/10/97 31/10/97 1/11/97 2/11/97 ... 1 500-2 000 m. Numerically, catches were dominated by Patagonian toothfish (Dissostichus ... eleginoides), with 2 822 individuals caught (83% of total catch). Grenadiers of the genus Macrourus were the ... prelev6s sur les palangres posees perpendiculairement aux isobathes, jusqufB 1 500 B 2 000 m de profondeur ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 99–116 : Autor(es): López Abellán, L.J. and J.F. González Jiménez
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Can we use discriminant function analysis to sex penguins prior to calculating an index of a morphometric characteristic?
nTH~ CO CTeneHbIO TOqHOCTH 60JIee 80%, TO HMeeTC5I HH3Ka5I Bep05ITHOCTb Toro, qTO npH Bbl60pKe ... 2. METHODS For the purposes of this analysis, I consider distributions of the morphometric ... - J,11 = ca [equation 1] and therefore a 1 o c (2) -=- and is independent of (J or ~. The sample ... necessary. True and apparent means of selected Adelie penguin characteristics are shown in Table 2. Bill ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 259–272 : Autor(es): Agnew, D.J.
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Length- and age-at-spawning of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea
L50% for the hindcast ogive. 0 10 20 30 40 0. 0 0. 2 0. 4 0. 6 0. 8 1. 0 Age (y) P ro po rti ... 400 10 20 30 40 0. 0 0. 2 0. 4 0. 6 0. 8 1. 0 Age (y) P ro po rti on s pa w ni ng Female ... . Red lines indicate the A50% or L50%. 0 5 10 15 20 25 30 0. 0 0. 2 0. 4 0. 6 0. 8 1. 0 Age (yr ... 300 5 10 15 20 25 30 0. 0 0. 2 0. 4 0. 6 0. 8 1. 0 Age (yr) P ro po rti on s pa w ni ng ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 53–73 : Autor(es): Parker, S.J. and P.J. Grimes
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Modelling and decision making as part of the CCAMLR management regime
(Table 2). The first of these models (3A-Table 2) would be for the purpose of providing insights into ... exploitation of several co-existing predators (e.g. seals and penguins), the abundance of which may be ... forces would be the harvests of the predators and their prey. Each of the models in Table 2 would ... attributes in Table 2 may not necessarily be the best. As such, the purpose is to show how such a schema ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 295-322 : Autor(es): Miller, D.G.M.
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Food consumption by predators in a CCAMLR integrated study region
% cephalopod, 28% myctophid, 30% amphipod, 3% other crustacea, 2% other (Croxall et al., 1988b). (d) fish ... -CAMLR-VIIJ/BG/12, SC-CAMLR-VIII/BG/15). 2. CONTENTS The present paper comprises: Part 1: A ... estimating food consumption of breeding populations of South Georgia seabirds. Part 2: (a) Some selected ... . 2. DATA PREPARATION For all data input to the program the time-base used 1 September as day number ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 489–519 : Autor(es): Croxall, J.P., C. Ricketts and A.G. Wood