Glippa, O., Brutemark, A., Johnson, J., Spilling, K., Candolin, U. and Engström-Öst, J., 2017. Early development of the threespine stickleback in relation to water pH. Frontiers in Marine Science, 4, p.427.
| Species | Development state | Trait | Primary Data | Secondary Data |
| Gasterosteus aculeatus | Egg | Egg size after water-hardening | 1.33-2.16 | 1.75 mm |