Publikationsdatum:
2021-07-07
Beschreibung:
The river perch (Perca fluviatilis L.) is most active in the daytime hours, and displays seasonal changes of diel rhythm with a break of the rhythm in spring and autumn. In the present work data were obtained on the motor activity of 3 perch measuring l8-20 cm, caught by net in the littoral of a reservoir and spawned under laboratory conditions. The degree of intensity of movement of perch was judged by special experiments. The results are summarised in this short paper.
Beschreibung:
Translated from Russian into English
Schlagwort(e):
Biology
;
Ecology
;
Limnology
;
Freshwater fish
;
Activity patterns
;
Experimental research
;
Perca fluviatilis
Repository-Name:
AquaDocs
Materialart:
monograph
Format:
application/pdf
Format:
application/pdf
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