Kwain, 1982



Citation


No detailed citation.

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Oncorhynchus gorbuscha Spawning conditions Mating system Female is attented by several males No category
Oncorhynchus gorbuscha Spawning conditions Spawning site preparation The female digs a redd Susbtrate chooser
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 occured within the preferred temperature range from 7 to 10°C] 7.0 °C
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 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 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 Weight at sexual maturity Average weight was 0.68 kg 0.68 kg
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 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 35.8 cm
Oncorhynchus gorbuscha Larvae Initial larval size Total length of newly emergedfry from the Steel River averaged 30.1 ±0.9 30.1 mm