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1

Is the replacement of Scenedesmus quadricauda L. by Selenastrum capricornutum L. in toxicity tests reasonable?

100%
Dvorakova D., Rojickova-Padrtova R., Marsalek B.
Polskie Archiwum Hydrobiologii
|
1999
|
tom 46
|
nr 3-4
2

Growth responses of Scenedesmus quadricauda to oil pollution at different temperatures and light intensities

86%
Kentzer T., Tukaj Z.
Oceanologia
|
1985
|
tom 22
3

The effect of selected dispersants on growth of Chlorella vulgaris Beijernick and Scenedesmus quadricauda (Turpin) Brebisson

86%
Latala A., Plinski M.
Oceanologia
|
1985
|
tom 22
4

The influence of carbamate insecticides on some physiological processes in Scenedesmus quadricaucla (Turp./Breb.)

72%
Groba J., Kentzer T.
Oceanologia
|
1983
|
tom 17
5

The influence of the redox potential of the medium on the growth of some Chlorophyceae

72%
Guminski S., Jurajda K., Tatkowska E.
Oceanologia
|
1983
|
tom 17
6

Mineralization of phycodetritus in water column of the submountain dam reservoir [Southern Poland]: simulated experiments

72%
Starzecka A., Bednarz T.
Polish Journal of Ecology
|
2004
|
tom 52
|
nr 3
The mineralization (expressed as O₂ consumption and CO₂ release) of Scenedesmus quadricauda detritus was investigated in homothermal (spring, autumn) and stratified (summer, winter) conditions, using the MicroOxymax respirometer. In experiments, the rate of O₂ consumption and CO₂ release, sedimentation rate and time of mineralization of phycodetritus in water from 2.5, 7.5 and >17 m depth were determined. It was found that 41% and 100% of detritus carbon (31.4 mg C dm⁻³) added to the water could be mineralized in whole water column in time 28 days during spring and 37 days during autumn homothermal conditions. In summer stratification periods 61% of the detritus carbon during 29 days, and in winter 100% during 35 days, could be mineralised down to the depth 18 m. The rate of mineralization of phycodetritus depends on temperature and activity of microflora. The differences in the rate of O₂ consumption and CO₂ release between particular layers of water and seasons were statistically significant in the majority of cases.
7

Physiological heterogeneity of an algal population: classification of Scenedesmus quadricauda cenobia by the features of their photosynthetic apparatus

72%
Pogosyan S. I., Sivchenko M. A., Maximov V. N., Ostrowska M.
Oceanologia
|
1997
|
tom 39
|
nr 2
8

Toksycznosc i biodegradacja chlorowcowych pochodnych metanu w srodowisku wodnym

61%
Bogacka T., Trzcinska B., Grawinski E., Ceglarski R.
Bromatologia i Chemia Toksykologiczna
|
1992
|
tom 25
|
nr 1
37-43
The effect of methylene chloride, chloroform, and carbon tertrachloride on the following aquatic organisms: Pseudomonas fluorescens, Scenedesmus quadricauda, Lemna minor, Daphnia magna, and Lebistes reticulatus, was investigated. Pseudomonas fluorescens bacteria were found to be most sensitive test organisms, and a toxic effect towards them was observed just at the concentration of 100 µg/l of each agent. Studies on degradation in distilled water, river-water, and aqueous ecosystem revealed moderate stability in aqueous medium of compounds under investigation. Chloroform and carbon tetrachloride were detecable in river-water still after 40 days in concentrations toxic to aqueous ecosystem. More rapid degradation of methane halogen derivatives in river-water than in distilled water indicated the presence of microorganisms living in water from natural source, and being accessory to the decomposition of these agents. Degradation in the presence of adapted microflora took, as a general rule, a slower cource. Decrease of temperature to 6°C inhibited considerably the degradation rate of the investigated contaminants. The reduction of methane halogen derivatives content during 21-day exposure in aqueous ecosystem came up to 73%. Moreover, these compounds were found not to have biocumulative properties, and not to be toxic - in concentrations up to 300 µg/l - to aqueous biocenosis homing the experimental ecosystem.
9
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Comparison of phytotoxicity of lead and tin organic compounds by means of luminescence methods

58%
Murkowski A., Skorska E.
Acta Agrophysica
|
2008
|
tom 11
|
nr 1[156]
10

The toxicity of three dispersed diesel fuel oils and dispersant towards some Scenedesmus [Chlorococcales] species

51%
Tukaj Z.
Oceanologia
|
1994
|
tom 36
|
nr 2
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