Urho, L. (2002) Characters of larvae - what are they?. Folia Zool., pp. 161-186
| Species | Development state | Trait | Primary Data | Secondary Data |
| Lota lota | Larvae | Larvae behaviour | Immediate dispersion after hatching | Demersal |
| Gymnocephalus cernua | Larvae | Larvae behaviour | Immediate dispersion after hatching | Demersal |
| Sander lucioperca | Larvae | Larvae behaviour | Immediate dispersion after hatching | Demersal |
| Salmo trutta fario | Larvae | Larvae behaviour | delayed, gradual dispersion after a passive phase | Demersal |
| Cottus gobio | Larvae | Larvae behaviour | When scuba diving I have observed that the larvae remain under a stone in the care of their parent at least until their fins have differentiated | Demersal |
| Cottus gobio | Larvae | Reaction to light | Negative phototaxis help them to stay in this location whilst the yolk sac is still present | Photopositive |
| Cottus gobio | Spawning conditions | Parental care | When scuba diving I have observed that the larvae remain under a stone in the care of their parent at least until their fins have differentiated | No category |
| Osmerus eperlanus | Larvae | Larvae behaviour | Pelagic | Pelagic |