River branch | Length (h) | Mass (h) | Sea age (h) |
---|
Males | Females | Males | Females | Males | Females |
---|
Austervefsna | −0.060 | −0.054 | −0.075 | −0.071 | −0.075 | −0.074 |
Svenningdalselva | −0.086 | −0.161 | −0.106 | −0.187 | −0.094 | −0.162 |
- Data obtained from scale samples collected in the lower part of Vefsna (where anadromous fish were naturally distributed, i.e., downstream of the Laksforsen waterfall) were used as a proxy for corresponding data prior to the first fish ladder being constructed in 1889