| Avaa | Böhling, P.
Lehtonen H.
Hudd, R.
Karås, P.
Neuman, E.
Thoresson, G.
| Variations in Year-Class Strength of Different Perch (Perca fluviatilis) Populations in the Baltic Sea with Special Reference to Temperature and Pollution | linkki | artikkeli | ahven, happamoituminen, Itämeri, kalakannat, saastuminen | Canadian Journal of Fisheries and Aquatic Sciences | | 1991 | 7 | | Canadian Journal of Fisheries and Aquatic Sciences July 1991 | PP. 1181-1187 | E-kalatutkimus : Ahven (avokotelo 3) |