Mills, 1987



Citation


No detailed citation.

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Phoxinus phoxinus Spawning conditions Spawning period duration 110 days 110.0 weeks
Phoxinus phoxinus Female Maximum GSI value Mean 20 [early June], but up to 25% 20.0 percent
Phoxinus phoxinus Male Male sexual dimorphism Spawning colours and well-developed tubercles Absent
Phoxinus phoxinus Male Onset of spermatogenesis Mid-February to begining of March ['February', 'March']
Phoxinus phoxinus Male Maximum GSI value 5.5 [Early May] 5.5 percent
Phoxinus phoxinus Female Age at sexual maturity 1-2 [Male and Female] 1.5 years
Phoxinus phoxinus Male Main spermatogenesis activity March ['March']
Phoxinus phoxinus Female Onset of oogenesis October, slight increase then remains constant until february ['October']
Phoxinus phoxinus Female Intensifying oogenesis activity March to May ['March', 'May']
Phoxinus phoxinus Male Resting period Almost 0 [From September to February] 0.0 months
Phoxinus phoxinus Egg Oocyte diameter 1.19-1.46 [Released egg] 1.325 mm
Phoxinus phoxinus Male Spermatogenesis duration March-April No data
Phoxinus phoxinus Spawning conditions Spawning season From April to August ['April', 'August']
Phoxinus phoxinus Female Length at sexual maturity 5-6 up to 8 [Male and female] 5.5 cm
Phoxinus phoxinus Male Length at sexual maturity 5-6 up to 8 [Male and female] 5.5 cm
Phoxinus phoxinus Larvae Initial larval size 8.5-10.1 [Not at hatching !] 9.3 mm
Phoxinus phoxinus Female Age at sexual maturity 1-2 [Male and female] 1.5 year
Phoxinus phoxinus Spawning conditions Spawning release A potential to spawn 7 to 9 batches of eggs Mutliple