Arch. Pol. Fish.     Vol. 7     Fasc. 2            1999      p. 329-342


HISTOPATHOLOGICAL CHANGES IN JUVENILE CARP CYPRINUS CARPIO (L.) CONTINOUSLY EXPOSED TO ALKALINE
LEVELS OF PH, FROM HATCHING

Teresa Ostaszewska*, Michał Korwin-Kossakowski**, Marcin Czarnogórski*, Grzegorz Resiak*

*Agricultural University (SGGW) in Warsaw
**The Stanisław Sakowicz Inland Fisheries Institute in Olsztyn

ABSTRACT. The fish were exposed to alkaline water of pH 10.2-10.3 for 21 days since hatching. Histological preparations showed pathological changes in epithelium, gills, esophagus, nasal cavities, eye, brain, heart, swim bladder, and liver compared with the control fish reared at pH 7.8-8.2.

Key words: CARP, pH, HISTOPATHOLOGICAL CHANGES