Resultados de la búsqueda
-
A review of the trophic role of mesopelagic fish of the family Myctophidae in the Southern Ocean ecosystem
. La quantite importante de meso- et macroplancton consommee par les Myctophidae met en evidence le ... high latitudes (62" to 65"s; sometimes even further south) where ACC waters extend southward. Years ... . anderssoni and G. nicholsi. Results of biomass assessments of E. carlsbergi carried out in recent years in ... Vozrozhdenie in the Falkland/Patagonian area (46"00f to 46°30'S,58030' to 60°00'S) show that the highly ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 71–77 : Autor(es): Kozlov, A.N
-
Krill (Euphausia superba) distribution in relation to water movement and phytoplankton distribution off the northern South Shetland Islands
deployed at a level of 30 m from the surface because at this level krill concentrations are most frequently ... levels (0, 10, 20, 30, 40, 50, 75, 100, 125, 150 and 200 m). Chl-a concentration was determined by ... circulation was studied with satellite-tracked buoys equipped with curtain drogues deployed at a level of 30 ... bouees suivies par satellite et equipees d'ancres de cape, deployees a 30 m de profondeur, niveau ... Ha ypOBHe 30 MeTpoB OT nOBepxHocTH, nOCKOJIbKY lIaIl\e Bcero KOHl.\eHTpal.\HH KPHJI5.I ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 123–140 : Autor(es): Ichii, T., H. Ishii and M. Naganobu
-
Possible effects of different levels of krill fishing on predators – some initial modelling attempts
fluctuations together with preliminary information on adult survival and breeding success patterns for certain ... variability, the figure actually used was the average of the medians over the last 50 years of the 200-year ... considering a krill dynamics model incorporating recruitment fluctuations together with preliminary ... increase and the (average) krill biomass level drops, the ratio of good to poor years for krill predators ... respectively as follow: years in which both adult survival and breeding success are high, those B / [ ~ A ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 79–97 : Autor(es): Butterworth, D.S. and R.B. Thomson
-
Champsocephalus gunnari stock status in the South Georgia area
recruitment was taken at the lowest possible level for all these years (400 million specimens). Catch-per-unit ... intensity was F 0.1. In the first two cases TAC=25-30 thousand tonnes and stock size does not change. For ... possible level for all these years (400 million specimens). Catch-per-unit-effort was also taken at the ... was FO.1• In the first two cases TAC=2S-30 thousand tonnes and stock size does not change. For the ... les deux premiers cas, la T AC=25-30 mille tonnes et la taille du stock ne change pas. Dans le ... ,llByX CJIY'-Ia51X OllY=25-30 TbIC. T., H BeJIH'-IHHa 3anaca He H3MeH51eTC51. B TpeTbeM CJIy'-Iae OllY ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 1-18 : Autor(es): Borodin, R. and P. Kochkin
-
Fishing intensity of the Soviet fleet in krill fisheries in the southern Atlantic (Subareas 48.2 and 48.3)
20-year fi shing history, the precautionary catch limit had never been approached. Furthermore, the ... ; Butterworth et al., 1994; Boyd, 2002a). This topic was investigated for those years when there was the ... greatest recorded fi shing intensity. During the two most recent decades, such years occurred in the 1987 ... this amounted to only 20% of the total catch. The analyses reported here are restricted to the ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 15–35 : Autor(es): Kasatkina, S.M. and V.F. Ivanova
-
The influence of bait quality on the sink rate of bait used in the Japanese longline tuna fishing industry: an experimental approach
. The addition of a 20 g lead sinker to a conventional 20 g tuna hook reduced the sink time of bait ... the effect of added weight (sinkers) on the sink rates of bait. Lead sinkers weighing 10 g, 20 g, 30 ... . Fish with inflated swim bladders floated, however, even when thawed. The addition of a 20 g lead ... sinker to a conventional 20 g tuna hook reduced the sink time of bait bearing a hook alone by 50% to 2 ... decongeles, dont les vessies natatoires etaient gonflees flottaient. En fixant un poids de 20 g 3 un hamecon ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 123–129 : Autor(es): Brothers, N., A. Foster and G. Robertson
-
On reproduction of Electrona carlsbergi (Tåning)
WG-FSA-90/20 ON REPRODUCTION OF ELECTRONA CARLSBERGI ... diameter from 10 to 30 J.Ill1. The membrane has no structure. The cytoplasm is heterogeneous; the ... towards the animal pole of the egg. The phase of maturation is associated with yolk hydration and ... Condition Stage (mg) Coefficient (%) I 12-30 0.1-0.2 Oogonia Juvenile IT 40-90 0.5-1.1 Oogonia ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 397–409 : Autor(es): Mazhirina, G.P.
-
Differences in distribution and population structure of krill (Euphausia superba) between penguin and fur seal foraging areas near Seal Island
at a deeper range from 50 to 100 m in the day while at a shallower range from 20 to 50 m at night. In ... ;, () 20 30 40 50 60 ~~~~~ ~ ~~~~£1 " " " " Body length ( mm ) Maturity stages Figure 5: Body length and ... , tending to be at a deeper range from 50 to 100 m in the day while at a shallower range from 20 to 50 m at ... 50 a 100 m de jour alors qu'il frequente une couche moins profonde, de 20 a 50 m de nuit. Au large ... Ha r JIy6HHe 50-100 M, a HOqblO 6JIH)I{e K nOBepxHocTH B ,l(Hana30He 20-50 M. B HarYJIbHbIX apeaJIax ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 273–285 : Autor(es): Ichii, T., H. Ishii, J.L. Bengtson, P. Boveng, J.K. Jansen and M. Naganobu
-
Factors that may influence the accuracy of abundance estimates from CCAMLR tag-recapture programs for Dissostichus spp. and best practice for addressing bias
Science, Vol. 20 (2013): 63–72 63 Factors that may InFluence the accuracy oF abundance estImates From ... with respect to M, R and C. Where these assumptions are not met, parameter estimates may be biased ... years of standardised tags and increasingly sophis- ticated methods for data grooming and matching tags ... three years at liberty (D. Welsford, unpub- lished data), and recaptures after more than eight years ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 63–72 : Autor(es): Welsford, D.C. and P.E. Ziegler
-
Moulting interval and growth of juvenile Antarctic krill fed different concentrations of the diatom Phaenodactylum tricornutum in the laboratory
0.047 mm day –1, which is too slow to support the hypothesised 2-year life-span of this animal in the ... slow to support the hypothesised 2-year life-span of this animal in the field. Growth conditions of ... postulada para este animal en la region. Se discuten las condiciones de crecirniento del krill en el ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 223-225 : Autor(es): Ikeda, T. and P.G. Thomas