Ruelle, R. (1977) Reproductive cycle and fecundity of white bass in Lewis and Clark Lake. Transactions of the American Fisheries Society, pp. 67-76
Species | Development state | Trait | Primary Data | Secondary Data |
Morone chrysops | Spawning conditions | Parental care | After spawning, all females and most males abandonned the area, within 1 wk all males departed | No category |
Morone chrysops | Spawning conditions | Spawning temperature | Mean: 16.3 [Range 13.4-20.2] | 16.8 °C |
Morone chrysops | Spawning conditions | Spawning period duration | 1-2 [Most spawning was during the last week in May and the first week in June] | 1.5 weeks |
Morone chrysops | Female | Maximum GSI value | Mean 15, and up to 20% [Third week in May] | 15.0 percent |
Morone chrysops | Male | Onset of spermatogenesis | September [Testes developped rapidly in fall] | ['September'] |
Morone chrysops | Female | Relative fecundity | Effective fecundity range from 470 to 620 eggs/g | 470.0 thousand eggs/kg |
Morone chrysops | Male | Maximum GSI value | Mean 5, up to 7.5 [Mid-May] | 5.0 percent |
Morone chrysops | Female | Age at sexual maturity | Mature at age 3, some at 2 | 3.0 years |
Morone chrysops | Female | Resting period | Mid-July to mid-October | No data |
Morone chrysops | Male | Main spermatogenesis activity | September, and then in April | ['April', 'September'] |
Morone chrysops | Female | Onset of oogenesis | Beginning of October increase in GSI [Recruitment ova began to develop in late august,a bout 9 months before the spawning season] | ['October'] |
Morone chrysops | Egg | Egg size after water-hardening | 0.700-1.180 [After spawning and water hardening] | 0.94 mm |
Morone chrysops | Female | Intensifying oogenesis activity | March-April | ['April', 'March'] |
Morone chrysops | Male | Resting period | 0.1 % |From early August to | 0.1 months |
Morone chrysops | Egg | Oocyte diameter | 0.699-1.000 [Ova immediatly after spawning] | 0.8495 mm |
Morone chrysops | Female | Absolute fecundity | Several papers described the fecundity of white bass. Ova counts ranged from 650,000 to 970,000 for three fish of unknown size from Spirit Lake, Iowa. Fecundity for 14 fish, 254 to 391 mm fork length from Shafer Lake, Indiana, ranged between 242,000 and 932,000 ova. Calculated fecundity for fish 320, 350 and 360 mm total length in Beaver Lake, Arkansas, was 360 000, 585,000 and 600,000 ova more than 0.57 mm in diameter respectively | 650.0 thousand eggs |
Morone chrysops | Spawning conditions | Spawning season | Spawning activity extended from about 17 May to 10 June | ['May', 'June'] |
Morone chrysops | Female | Age at sexual maturity | Some mature at 3, and all at 4 | 3.0 year |
Morone chrysops | Spawning conditions | Spawning release | White bass shed only about one-half of their ova | No category |
Morone chrysops | Spawning conditions | Parity | After spawning, all females and most males abandonned the area, within 1 week all males departed | No category |