Lappalainen, A. and Härmä, M. and Kuningas, S. and Urho, L. (2008) Reproduction of pike (Esox lucius) in reed belt shores of the SW coast of Finland, Baltic Sea: a nursery approach. Boreal Environment Research, pp. 370-380
| Species | Development state | Trait | Primary Data | Secondary Data |
| Esox lucius | Larvae | Initial larval size | The larvae are 8-9 mm long after hatching | 8.5 mm |
| Esox lucius | Larvae | Larvae behaviour | Remain attached to vegetation during the first 4-6 days. Thereafter, the larvae are 11-12 mm long, almost all of the yolk sac has been used, and they start to seek food | Demersal |
| Esox lucius | Spawning conditions | Spawning season | In the northern areas, pike spawn after ice-break in the spring […] Mostly during May when water temperature reaches 10°C | ['April', 'May', 'June'] |
| Esox lucius | Spawning conditions | Spawning temperature | Warmed to 8-12°C […] when the water temperature reaches 10°C | 10.0 °C |
| Esox lucius | Spawning conditions | Spawning depth | These reed belts extend from supra-littoral zone to a depth of usually 1-1.5 m | 1.25 m |
| Esox lucius | Spawning conditions | Spawning substrate | Grasses and sedges are preferred, but other vegetation may be used. The shelter provided by vegetation is essential for the larvae and young pike […] Pike can spawn over a range of macrophyte species. However, reed belts formed by Phragmites australis are a dominant feature in sheltered shores, bays and estuaries in wide regions of the northern Baltic Sea coast, and this common habitat serves as a major spawning and larval area for pike | Phytophils |