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Determination of the impact of the depth and velocity parameters on the quality of the aquatic habitat

In: Acta Hydrologica Slovaca, vol. 12, no. 2
Monika Jalčovíková - Viliam Macura - Marcela Škrovinová - Ivan Stankoci - Jana Kráľová

Details:

Year, pages: 2011, 430 - 441
Keywords:
habitat quality, IFIM, RHABSIM model, weighted usable area (WUA)
Original source URL: http://www.ih.savba.sk/ah
About article:
DETERMINATION OF THE IMPACT OF THE DEPTH AND VELOCITY PARAMETERS ON THE QUALITY OF THE AQUATIC HABITAT. The article is focused on the objectivization of the aquatic habitat assessment of the mountain and piedmont streams by Instream Flow Incremental Methodology (IFIM). Habitat quality is specified on the basis of bioindication, which is represented by ichthyofauna in habitat suitability curves. The evaluation was verified on the 20 streams in rivers catchment of the Poprad, Bodrog and Hornád in Eastern Slovakia. The generalization of the suitability curves and a discharge impact on the shape of the suitability curves. The evaluation was verified on the 20 streams of river catchments of the Poprad, Bodrog and Hornád rivers that are situated in Eastern Slovakia. From the results it can be assumed, that during the minimum flows fish prefers shelters with maximum water depths. With moderate increase of the flow fish still stay at the same shelter. This is the reason why depth increases with increasing the flow. This trend was confirmed by ichthyological survey performed by three different water levels on the Drietomica stream in the all 14 target microhabitats. From the initiate outcomes follows, that suitability curve should be derived for the minimum flows and the maximum suitability range stay sustentative till the discharge, when a fish is forced to move to find another hiding place in consequence of higher discharge. Following study was focused on the factual parameters weight evaluation.
How to cite:
ISO 690:
Jalčovíková, M., Macura, V., Škrovinová, M., Stankoci, I., Kráľová, J. 2011. Determination of the impact of the depth and velocity parameters on the quality of the aquatic habitat. In Acta Hydrologica Slovaca, vol. 12, no.2, pp. 430-441. 2644-4690.

APA:
Jalčovíková, M., Macura, V., Škrovinová, M., Stankoci, I., Kráľová, J. (2011). Determination of the impact of the depth and velocity parameters on the quality of the aquatic habitat. Acta Hydrologica Slovaca, 12(2), 430-441. 2644-4690.