Age determination in yellowtail flounder on the Grand Bank: a new approach
The standard age reading method was compared with a new method for ageing yellowtail flounder at the Northwest Atlantic Fisheries Centre. The standard method of reading whole otoliths was found to be inadequate after the age of 7 years old. Length-frequency analysis gave estimates of length at age f...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Text |
| Language: | English |
| Published: |
2000
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| Subjects: | |
| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.619.6485 http://archive.nafo.int/open/sc/2000/scr00-032.pdf |
| Summary: | The standard age reading method was compared with a new method for ageing yellowtail flounder at the Northwest Atlantic Fisheries Centre. The standard method of reading whole otoliths was found to be inadequate after the age of 7 years old. Length-frequency analysis gave estimates of length at age for the first five years for yellowtail flounder. Age estimates of new method of age reading thin sections of otoliths gave a maximum age of 16 years to female yellowtail and 13 years to male yellowtail. Age validation is advised, and radiocarbon dating from nuclear fallout is recommended. |
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