Frequency of occurrence of acanthocephalans (Acanthocephala) and cestodes (Cestoda) in alimentary tracts of the sea trout smolts (Salmo trutta m. trutta) grown in the drainage area of the river Rega and their impact on fish condition

Abstract

The present paper demonstrates results of analysis of 24 7 alimentary tracts of sea trout smolts (Salmo trutta m. trutta) grown in the drainage area of the river Rega (Pomerania). Fre quency of occurrence of acanthocephalans and cestodes in the alimentary tract was determined, as well as their impact on fish condition.