ABSTRACT. Migration behavior of carp (Cyprinus carpio L.), bream (Abramis brama L.), roach (Rutilus rutilus L.), nase (Chondrostoma nasus L.), barbel (Barbus barbus L.), ide (Leuciscus idus L.), and silver carp (Hypophthalmichthys molitrix L.) is presented. Fishes migrate in different periods of life. The main migrations are spawning migrations, feeding migrations, and wintering migrations. The distances covered by cyprinids differ, and range from several meters to many kilometers. Many species return to spawn in the same places each year, which is known as “homing” or “site fidelity”. Spawning grounds are chosen by fish near shore, where water is well oxygenated, warmer, and provides good food resources. Conditions in these waters are good for the development of fish eggs and then fish larvae.
Keywords: cyprinid fish, fish migrations, migratory behavior, potamodromous fish
Przyjęto po recenzji 23.09.2010 r.