PT Journal
AU Lojkasek, B
   Lusk, S
   Hala, K
   Luskova, V
TI Fish Communities in the Poodri Protected Landscape Area (the Odra River basin)
SO Czech Journal of Animal Science
PY 2004
BP 121
EP 130
VL 49
IS 3
DI 10.17221/4289-CJAS
DE fish communities; Odra River; Poodri PLA; floodplain
AB The Odra River, 55.2 kmof its length, is winding through the Poodri Protected Landscape Area, which has total area of 81,5 km<sup>2</sup>. More than 80% of its stream has retained the natural character of its riverbed and the hydrological regime with regular floods. Ichthyologic research was carried out in the period 1997-2001. It took place in 7 localities comprising 3 localities situated in main tributaries and 4 localities of former river arms. Gill nets and electrofishing were used for the research on limnetic biotopes. A total of 22 fish species in the streams (Odra, Lubina, Ondrejnice, and Bilovka Rivers) and 4 other species in stagnant water bodies were found. Out of all identified species, Oncorhynchus mykiss, Pseudorasbora parva, and Carassius auratus are not native species. Anglers identified further 7 species in their catches. The studied river sections are inhabited by the Barbus - Chondrostoma fish community. The highest biomass belongs to the most frequent species Leuciscus cephalus, Rutilus rutilus, and Barbus barbus. Total abundance in the individual localities ranged from 2 416 to 20 392 fishes/ha and total biomass was in the range from 174 to 788.8 kg/ha. The species diversity index H' of ichthyocenoses fluctuated between 2.238 to 3.108 in the area. There were 4-8 species in low numbers in 4 searched pools. The biomass was also low and the diversity index H' ranged from 1.390 to 1.737.
ER