Vehniäinen, E-R. and Häkkinen, J.M. and Oikari, O.J. (2007) Responses to ultraviolet radiation in larval pike, Esox lucius, of two origins and ages. Boreal Environment Research, pp. 673-680
| Species | Development state | Trait | Primary Data | Secondary Data |
| Esox lucius | Egg | Egg adhesiveness | Fertilized eggs swell and adhere to plants, which prevents them from sinking down to the bottom | Adhesive |
| Esox lucius | Egg | Temperature for incubation | At 10°C | 10.0 °C |
| Esox lucius | Larvae | Larvae behaviour | Newly hatched larvae attached to plants remain nonmotile for the first few days of life | Demersal |
| Esox lucius | Larvae | Reaction to light | One-week-old freely swimming larvae are positively phototactic and often swim very near the surface, and they may thus become severely exposed to UV-B radiation | Photopositive |
| Esox lucius | Spawning conditions | Spawning season | In Fennoscandia, pike spawns in April-May | ['April', 'May'] |
| Esox lucius | Spawning conditions | Spawning depth | Shallow waters (depth < 1 m) | 1.0 m |
| Esox lucius | Spawning conditions | Spawning substrate | With vegetation as spawning base | Phytophils |