Two amphipods, the hypogean Niphargus stygius and epigean Gammarus fossarum, were analyzed for fatty acid (FA) composition, electron transport system (ETS) activity and respiration (R) during a laboratory fasting experiment. In agreement with ETS and R measurements, the hypogean N. stygius utilized FA more slowly than the epigean G. fossarum. Inter-specific differences in the utilization of certain FA during fasting were also revealed. This is the first report, which connects ETS activity with changes in concentrations of specific FA during fasting.
COBISS.SI-ID: 2139471
We studied effect of light on oxygen consumption in two amphipods (Crustacea). One of them is epigean (Gammarus fossarum) and the second one lives in groundwater (Niphargus stygius). The results showed that epigean species has 3-times higher basal metabolism comparing subterranean one, and light does not disturbed it much. Disturbance was expressed in increased oxygen consumption. Illumination was a hard shock for subterranean species, which could result in a death of organisms. Even two hours after termination of illumination animals expressed increased oxygen consumption.
COBISS.SI-ID: 1734991
Unsaturated karstic zone (also named epikarst) have became an important subject for hydrological and biological investigations in the last two decades. Zone is important in determination of quality and quantity of water in the karst. At the same time it is environment, very rich in highly specialized fauna with Harpacticoida as a dominant group. Many of species are endemic in many of them have very specific adaptations for existence in such environment. Two new species are described from the cave Velika Pasica and their morphological adaptations are described in details
COBISS.SI-ID: 1933391
The large wetland area with its numerous aquifers in the extreme south of the Ljubljana basin is a very important water resource with very complicated hydrological structure. Tritium and oxygen isotope composition were therefore determined, beside others parameters such as concentrations of gamma-ray emitters and geochemical parameters (Ca2+, Mg2+, Na+, K+, Cl-, SO42-, NO3-, HCO3. Conductivity, pH, H-2). Obtained results confirmed existance of many different types of groundwaters in the basin and clarify the status of lower aquifers.
COBISS.SI-ID: 22950951
In the article the distribution of caffeine, carbamazepine and propyphenazone, respectively, on the area of Ljubljansko polje and Ljubljansko barje is presented. Ljubljansko polje and Barje are important sources of drinking water. Pollutants are the indicators of efficiency of sewerage system, however, on the urban areas without sewerage they are the indicators of ability of aquifer natural attenuation.
COBISS.SI-ID: 1716565