Kwain, W. H. (1982) Spawing behaviour and early life history of pink salmon (Oncorhynchus gorbuscha) in the Great lakes. Can. J. Fish. Aquat. Sci., pp. 1353-1360
Species | Development state | Trait | Primary Data | Secondary Data |
Oncorhynchus gorbuscha | Egg | Egg size after water-hardening | The average diameter of eggs was 6.38 ± 0.28 [Fertilized eggs after being water hardened for an hour] | 6.38 mm |
Oncorhynchus gorbuscha | Egg | Incubation time | 74 [7°C], 69 [9°C], 62 [11°C], 51 [13°C] and 47 [15°C] | 74.0 days |
Oncorhynchus gorbuscha | Egg | Temperature for incubation | Incubated at 7, 9, 11, 13 and 15, yet 15°C is considered to be the upper limit for Great Lakes pink salmon egg incubation [embryos of sea-run pink salmon can tolerate near-zero temperatures provided early development has occurred within the preferred temperature range from 7 to 10°C] | 7.0 °C |
Oncorhynchus gorbuscha | Larvae | Initial larval size | Total length of newly emergedfry from the Steel River averaged 30.1 ±0.9 | 30.1 mm |
Oncorhynchus gorbuscha | Larvae | Temperature during larval development | The mean preferred temperature of pink salmon fry was 10.3°C [The youngest sea-run fry (newly emerged) generally selected temperatures of 11.7-12.8°C in a vertical gradient, whereas older fry (up to 10 wk) were found in temperatures of 9.4-10.6°C] | 12.25 °C |
Oncorhynchus gorbuscha | Female | Length at sexual maturity | Spawning runs in 1979 averaged 358 mm in fork length for both sexes, whereas from a pooled Lake Huron/Lake Michigan sample averaged 389 mm for both sexes | 1979.0 cm |
Oncorhynchus gorbuscha | Female | Weight at sexual maturity | Average weight was 0.68 kg | 0.68 kg |
Oncorhynchus gorbuscha | Female | Absolute fecundity | Average number of eggs per female was 1060 ± 229, low compared to 1500-1900 in the sea-run fish | 1060.0 thousand eggs |
Oncorhynchus gorbuscha | Male | Length at sexual maturity | Spawning runs in 1979 averaged 358 mm in fork length for both sexes, whereas from a pooled Lake Huron/Lake Michigan sample averaged 389 mm for both sexes | 1979.0 cm |
Oncorhynchus gorbuscha | Spawning conditions | Spawning site preparation | The female digs a redd | Susbtrate chooser |
Oncorhynchus gorbuscha | Spawning conditions | Mating system | Female is attented by several males | No category |