Tarkan, 2006



Citation


Tarkan, A.S. (2006) Reproductive ecology of two cyprinid fishes in an oligotrophic lake near the southern limits of their distribution range. Ecology of Freshwater Fish, pp. 131-138

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Rutilus rutilus Spawning conditions Spawning temperature From early April (13°C) to late May (18°C) [review from other populations: 10, 8-10, 11-19, 12, 16-17.8, 14, 14, and 6-10] 9.0 °C
Scardinius erythrophthalmus Spawning conditions Spawning temperature From early May (17.5°C) to late June (23.5°C) [review from other populations: 17.5-23.5, 21.9-24.4, 10, 18-20 and 18-25] 20.5 °C
Rutilus rutilus Spawning conditions Spawning period duration From 1 to 3 months [4 populations at 4 weeks, one at 8 weeks and two few days] 1.0 weeks
Scardinius erythrophthalmus Spawning conditions Spawning period duration From 1 to 3 months, but all three populations 4 weeks and among them one few days] 1.0 weeks
Rutilus rutilus Female Maximum GSI value About 11% in 2001 and 15% in 2002 [End of April] 11.0 percent
Scardinius erythrophthalmus Female Maximum GSI value About 12.5 in 2001 and 14.5% in 2002 [May] 12.5 percent
Rutilus rutilus Male Onset of spermatogenesis September to October ['October', 'September']
Scardinius erythrophthalmus Male Onset of spermatogenesis October ['October']
Rutilus rutilus Male Maximum GSI value About 7.5% in 2001 and 8% in 2002 [April] 7.5 percent
Scardinius erythrophthalmus Male Maximum GSI value About 7% in 2001 and 9% in 2002 [In May] 7.0 percent
Rutilus rutilus Female Age at sexual maturity The sizes at 50% maturity correponds to 3 years of age for both sexes of roach [Review from other populations: 3, 1, 2-3, 3-4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 3, 2 and 4]] 2.5 years
Scardinius erythrophthalmus Female Age at sexual maturity The sizes at 50% maturity correponds to 1 year of age for both sexes of roach [review from other populations: 1, 1-2, 2, 2, 3-4, 1 and 3] 1.5 years
Rutilus rutilus Female Resting period May to June, July and stops in August [From graph] No data
Scardinius erythrophthalmus Female Resting period From June to September No data
Rutilus rutilus Male Main spermatogenesis activity Increase regularly from October to April, slight increase in February-March ['February', 'October', 'April', 'March']
Scardinius erythrophthalmus Male Main spermatogenesis activity Increase regularly during tyhe winter until 4% in April, then rise sharply in April ['February', 'April', 'March', 'January']
Rutilus rutilus Female Onset of oogenesis September-October, increase in GSI (Graph) ['October', 'September']
Scardinius erythrophthalmus Female Onset of oogenesis September-October, slight increase (from graph) ['October', 'September']
Rutilus rutilus Female Intensifying oogenesis activity Increase until 6 in January then a sharp increase from 6 to max value in February-March ['February', 'March', 'January']
Scardinius erythrophthalmus Female Intensifying oogenesis activity Increase regularly until April at 6%, then rise sharply until max value ['April']
Rutilus rutilus Male Resting period June, July and August No data
Rutilus rutilus Egg Oocyte diameter 1.62 ± 0.3 and 1. 75 ± 0.4 [Mean high egg diameter] 1.62 mm
Scardinius erythrophthalmus Egg Oocyte diameter 1.12 ± 0.2 and 1. 20 ± 0.3 [Mean high egg diameter] 1.12 mm
Rutilus rutilus Female Absolute fecundity Varied from 7.829 to 95.387 eggs between ages 3 and 9 [Review from other populations: 7.829-95.387, 0.92-32.810, mean of 18.519,3.031-43.649, 2.2, 6.8-210, mean of 49.354, mean of 11.053, mean of 16.262, mean of 16.539, 4.251-11.180, mean of 9.506, 4.435-19.065, 3.4-272.8, 7.2-52.4, mean of 25.565, 1.98-13.59] 51.608 thousand eggs
Scardinius erythrophthalmus Female Absolute fecundity Varied from 1.807 to 35.629 eggs between ages 1 and 7 [Review from other populations: 1.807-35.629, 4.38758.895, 0.563-12.284, 23.019-59.248, 96-232] 18.718 thousand eggs
Rutilus rutilus Spawning conditions Spawning season The spawning occurs in early April to late May ['April', 'May']
Scardinius erythrophthalmus Spawning conditions Spawning season The spawning extends from early May to late June ['May', 'June']
Rutilus rutilus Female Length at sexual maturity 14.98 for LT50 [Review for other populations: 10.6 (TL), 8.1-9 (SL), 13.5-15.3 (SL), 10-11 (TL)] 8.55 cm
Scardinius erythrophthalmus Female Length at sexual maturity 8.10 for LT50 [Review for other populations: 17-29 (TL)] 23.0 cm
Rutilus rutilus Male Length at sexual maturity 12.26 for LT50 [Review from other populations: 7.4 (TL), 6.3-7.0 SL), 11-13.5 (SL) and 9-10 (SL)] 6.65 cm
Scardinius erythrophthalmus Male Length at sexual maturity 7.12 for LT50 [Review from other populations: 17-29 (SL)] 23.0 cm
Rutilus rutilus Female Age at sexual maturity The sizes at 50% maturity correponds to 3 years of age for both sexes of roach [Review from other populations: 3, 2, 2-3, 3-4, 3, 3, 3, 3, 3,3,3,3, 2, 4.5, 2 and 5] 2.5 year
Scardinius erythrophthalmus Female Age at sexual maturity The sizes at 50% maturity correponds to 1 year of age for both sexes of roach [review from other populations: 1, 1-2, 3, 2, 3-4, 2, 3] 1.5 year
Rutilus rutilus Spawning conditions Spawning release Synchronous type of spawning has been reported No category
Scardinius erythrophthalmus Spawning conditions Spawning release Synchronous type of spawning has been reported [Yet in some areas, rudd has asynchronous ovogenesis and shed the eggs over several months, spawn two batches of eggs int he absence of suitable conditions (particularly temperature) for spawning, the female remain throughout the spawning period with unspawned sexual products] Mutliple