Original scientific paper
NUTRITION OF CHUB Leuciscus cephalus (Linnaeasus, 1758) FROM RIVER BABUNA
R. Nastova-Gjorgjioska
V. Kostov
S. Georgiev
Abstract
On the total number of 550 fish being caught in 1978 on three parts of the river Babuna there was investigated quantitative composition of the food seasonally and on the age classes. Chub from the river Babuna is omnivorous with the predominance of the floristic compound in his nutrition. The main mass of the food has autochtonous character. In the spring time the main mass of the food has autochtonous character. In the spring time, the main component are algues from Chrysophyceae plant group and Ephemeroptera by the animal part, along all the habitat of L. cephalus when Plecoptera are present in the upper and meddle part of the river. In the summer period, the dominant plant group is Conjugatophyceae different animal component from the river. Chrysophyceae are dominant also in the autumn period from the plant composition, group s by the animal composition vary from part to part, while Pisces can be found in the meddle part. In the winter time, dominant plant particle are Bacillariophyceae. Animal particles are also different from part to part. Pisces are present in the meddle part, too. Young fish are fed by Diatomeae and Chironomidae. Fish old er than 1+ principally take the food of plant origin and Conjugatae, also insects larves, partially detritus, and the oldest age classes are fed by Pisces.
Keywords
Nutrition; leuciscus; river; Macedonia
Hrčak ID:
47994
URI
Publication date:
1.7.1997.
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