Report of Ageing Workshop on Cod held at Vigo, Spain, October 1975
50 pages, 10 tables, 3 appendixes From age readings of cod otoliths by ageing experts at the Workshop, significant variation in age determination was found among the individual readers. Such differences could seriously affect the results of population analyses. The detailed examr iuation of selected...
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| Format: | Report |
| Language: | English |
| Published: |
International Commission for the Northwest Atlantic Fisheries
1977
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10261/170036 |
| Summary: | 50 pages, 10 tables, 3 appendixes From age readings of cod otoliths by ageing experts at the Workshop, significant variation in age determination was found among the individual readers. Such differences could seriously affect the results of population analyses. The detailed examr iuation of selected otolith photographs was carried out in order to determine some of the reasons for the discrepancies. It was concluded that further work on age determination should be undertaken in an effort to reduce subjective errors in ageing and to develop a set of guidelines for otolith interpretation in cod. [.] Gadus morhua Peer reviewed |
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