Heidinger, R.C. and Kayes, T.P. (1986) Chapter 7: Yellow perch., pp. 103-113
Species | Development state | Trait | Primary Data | Secondary Data |
Perca flavescens | Egg | Oocyte diameter | 1.6-2.1 | 1.85 mm |
Perca flavescens | Egg | Egg size after water-hardening | 1.7-4.5 | 3.1 mm |
Perca flavescens | Egg | Incubation time | 51 [5.4], 27 [8.0°C], 13 [16°C], 6 [19.7°C] | 51.0 days |
Perca flavescens | Egg | Temperature for incubation | 10-20 [Considered to be the optimal temperature] | 15.0 °C |
Perca flavescens | Egg | Degree-days for incubation | From 250, 216, 208 to 118 DD : 51 [5.4], 27 [8.0°C], 13 [16°C], 6 [19.7°C] | 250.0 °C * day |
Perca flavescens | Larvae | Initial larval size | 4.7-6.6 | 5.65 mm |
Perca flavescens | Larvae | Temperature during larval development | Optimum is 20-23°C but can tolerate a range of 2.8-27.8°C for hatch to swim-up and optimum of 20-23.9 and tolerance range of 10-30 for feeding larvae | 21.5 °C |
Perca flavescens | Female | Age at sexual maturity | 2 [Rare, most at 3-4] | 3.5 year |
Perca flavescens | Female | Length at sexual maturity | 14-19.1, with a mean of 15.8 [Sex specified] | 16.55 cm |
Perca flavescens | Female | Relative fecundity | 79-223 | 151.0 thousand eggs/kg |
Perca flavescens | Female | Absolute fecundity | 3-109 | 56.0 thousand eggs |
Perca flavescens | Female | Oocyte development | Synchronous oocyte growth | Synchronous |
Perca flavescens | Female | Onset of oogenesis | Oocyte growth during fall through winter | ['January', 'February', 'March', 'October', 'November', 'December'] |
Perca flavescens | Female | Maximum GSI value | From 20 to 31% [Just prior to spawning] | 20.0 percent |
Perca flavescens | Female | Oogenesis duration | The mimimum chill period is 160 days at approximatively 10°C or less | 160.0 months |
Perca flavescens | Male | Age at sexual maturity | 1 [Rare but most at 3-4] | 3.5 years |
Perca flavescens | Male | Length at sexual maturity | 9.2-16.5, with a mean of 10.8 [sex specified] | 12.85 cm |
Perca flavescens | Male | Maximum GSI value | 10 [In mid-october] | 10.0 percent |
Perca flavescens | Male | Maximum GSI value | 8-15% | 11.5 percent |
Perca flavescens | Male | Spermatogenesis duration | Rapid, within 6 weeks than testes steadily lose weight to reach 4-6% at spawning | 5.0 months |
Perca flavescens | Male | Resting period | Between 1 and 2 [After spawning, declined troughout the summer until August] | 1.0 months |
Perca flavescens | Spawning conditions | Spawning migration period | In the spring, males move to the shoreline first, followed by females, ans stayed on the spawning grounds longer than female | ['April', 'May', 'June'] |
Perca flavescens | Spawning conditions | Spawning season | Spring | ['April', 'May', 'June'] |
Perca flavescens | Spawning conditions | Spawning period duration | Approximatively 2 weeks | 2.0 weeks |
Perca flavescens | Spawning conditions | Spawning temperature | 2.8-19.9°C [But optimum at 7.8-11.1°C] | 11.35 °C |
Perca flavescens | Spawning conditions | Spawning site preparation | No nest is built | Open water/substratum scatter |
Perca flavescens | Spawning conditions | Mating system | One female and two up to five males (even 25 males), it takes several minutes at 14-15°C and up to several days at temperatures below 5°C to extrude the entire egg mass | No category |
Perca flavescens | Spawning conditions | Parental care | No protection is given the egg mass or young by either parent | No care |