Tagging and release experiments on 0-group coastal cod (Gadus morhua L.) reared in an outdoor basin
Juvenile coastal cod (Gadus morhua L.), hatched in the laboratory and reared in a large outdoor basin at Flødevigen Biological Station, were tagged and released in coastal waters in southern Norway. They were released at an age of 6 months and a length of about 10 cm. Tag return to 1 January 1980 wa...
| Main Authors: | , |
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| Format: | Conference Object |
| Language: | English |
| Published: |
Havforskningsinstituttet
1984
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| Subjects: | |
| Online Access: | http://hdl.handle.net/11250/115144 |
| Summary: | Juvenile coastal cod (Gadus morhua L.), hatched in the laboratory and reared in a large outdoor basin at Flødevigen Biological Station, were tagged and released in coastal waters in southern Norway. They were released at an age of 6 months and a length of about 10 cm. Tag return to 1 January 1980 was about 4% of the 712 cod released in 1976 and 10% of the 371 released in 1976 and 10% of the 371 released in 1977. About 90% of the cod were caught by anglers, in the area of release. The tagged cod showed t h e same growth rate as wild cod in the same area. The relatively high percentage recapture of cod released in 1977 might indicate a potential high survival rate of released cod reared in large basins. |
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