On the selection of effective impulse frequencies for specific movements of fish in an electrical field
In order to determine effective pulse limits for Salmo irideus, Cyprinus carpio, Gasterosteus aculeatus, Tinca tinca, Salmo fario and ldus melanotus in impulse D. C. for galvanotaxis and galvanonarcosis, studies were carried out with rectangular and square impulses. The narcotizing pulse limits remained constant for each variety in an impulse D. C. of specific wave form. The anodic effect of fishes was better in square wave form and varied with the variation of temperature of surrounding medium. S. fario reacted better when placed parallel to the lines of electrical force. Transversal escape movement occured when the axis of fish body was at right angles to the direction of current.
Saved in:
| Main Author: | |
|---|---|
| Format: | article biblioteca |
| Language: | English |
| Published: |
1971
|
| Subjects: | Fisheries, Salmo irideus, Cyprinus carpio, Gasterosteus aculeatus, Tinca tinca, Salmo fario, ldus melanotus, electric fishing, electrical fishing gears, |
| Online Access: | http://hdl.handle.net/1834/33565 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|