Vollestad et al, 1987


Citation

No detailed citation.

Associated characteristics

Species Development state Trait Primary Data Secondary Data
Rutilus rutilus Egg Incubation time About 10 10.0 days
Rutilus rutilus Egg Degree-days for incubation About 160 160.0 °C * day
Rutilus rutilus Female Age at sexual maturity The first females spawned at age 3, all females older than age 5 are mature 1.0 year
Rutilus rutilus Female Length at sexual maturity Between 10-12 cm for age 3, and 12-14 cm for age 4 [Female] 11.0 cm
Rutilus rutilus Male Age at sexual maturity First male spawned at age 2, all males older than 3 are mature 2.0 years
Rutilus rutilus Male Length at sexual maturity From 8-9 at age 2, to 10-11 for age 3, male 8.5 cm
Rutilus rutilus Spawning conditions Spawning migration period Upstream migration of mature roach strated in early May with medium or falling watr level (3-6°C). Main stream migration lasted about 5-7 days ['May', 'October', 'November', 'December']
Rutilus rutilus Spawning conditions Homing Return with 90.2% precision to their home tributary for subsequent spawnings Present
Rutilus rutilus Spawning conditions Spawning season Started in Mid-May until Mid-June ['May', 'June']
Rutilus rutilus Spawning conditions Spawning period duration Lasted 15-25 days 20.0 weeks
Rutilus rutilus Spawning conditions Spawning temperature 7.4-10.5 8.95 °C
Rutilus rutilus Spawning conditions Spawning water type Stream near a lake Stagnant water
Rutilus rutilus Spawning conditions Parity Iteroparous, oldest male was 13 and oldest female 17 years Iteroparous