Wydoski, R.S. and Cooper, E.L. (1966) Maturation and fecundity of brook trout from infertile streams. J. Fish. Res. Bd. Can., pp. 623-649
| Species | Development state | Trait | Primary Data | Secondary Data |
| Salvelinus fontinalis | Egg | Oocyte diameter | The mean diameter of ripe ova was 4.05 | 4.05 mm |
| Salvelinus fontinalis | Egg | Egg size after water-hardening | Ripe eggs from individual females varied in mean diameter from 3.35 to 5.0 | 3.35 mm |
| Salvelinus fontinalis | Female | Age at sexual maturity | Sexual maturity was attained by the majority of the brrok trout at the end of their 3rd year of life, although many males and females were mature in 2 years | 3.0 year |
| Salvelinus fontinalis | Female | Onset of oogenesis | Development begins in June for both sexes and reaches a peak in September | ['June', 'September'] |
| Salvelinus fontinalis | Female | Intensifying oogenesis activity | July-August | ['July', 'August'] |
| Salvelinus fontinalis | Female | Maximum GSI value | Mean of 10-11% [September/October] | 10.5 percent |
| Salvelinus fontinalis | Female | Resting period | November to June, < 1% | 1.0 months |
| Salvelinus fontinalis | Male | Age at sexual maturity | Sexual maturity was attained by the majority of the brrok trout at the end of their 3rd year of life, although many males and females were mature in 2 years | 3.0 years |
| Salvelinus fontinalis | Male | Male sexual dimorphism | There is some evidence that male matures earlier in the season than the females do | Absent |
| Salvelinus fontinalis | Male | Onset of spermatogenesis | Development begins in June for both sexes and reaches a peak in September | ['June', 'September'] |
| Salvelinus fontinalis | Male | Main spermatogenesis activity | June-July | ['June', 'July'] |
| Salvelinus fontinalis | Male | Maximum GSI value | Between 1.5 and 2% [August/September] | 1.5 percent |
| Salvelinus fontinalis | Male | Resting period | From November to June | 8.0 months |
| Salvelinus fontinalis | Spawning conditions | Spawning period duration | Spawning begins late in September and extends into November | No data |
| Salvelinus fontinalis | Spawning conditions | Spawning substrate | The stream bottoms were composed of large stones, broken pieces of shale, gravel and sand | Lithophils |
| Salvelinus fontinalis | Spawning conditions | Parity | Most of the brook trout in these infertile streams mature, spawn, and die before reaching 6 inches in total length | Semelparous |