| Autor: |
Harrison, Edward J., Hadley, Wayne F. |
| Zdroj: |
Transactions of the American Fisheries Society; September 1979, Vol. 108 Issue: 5 p452-456, 5p |
| Abstrakt: |
Cleithra and scales were obtained from each of 110 muskellunge captured by anglers in the Niagara River. The results obtained from cleithral age-and-growth analysis were compared to those from a similar scale analysis. Ages agreed on 87% of the sample. When ages disagreed, it was most often judged that the cleithral age was correct. Fish older than IX+ years could not be aged from scales, but cleithra were useful for fish as old as XVI+ years. Lengths back-calculated from the two techniques were statistically (95% level) equivalent at all ages except age I. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
Plný text