| Avaa | Helminen, H.
Hirvonen, A.
Sarvala, J.
| Impact of fisheries on the populations of two coregonids, vendace (Coregonus albula) and whitefish (Coregonus lavaretus), in Lake Pyhäjärvi, SW Finland | | moniste | kalakannat, muikku, Pyhäjärvi (Säkylä), siika - siiat | Turun yliopisto, Department of Biology | Turku | | 14 | | | Department of Biology | I-Kalatutkimus: Muikku (avokotelo 4) |
| Avaa | Helminen, Harri
Auvinen, Heikki
Hirvonen, A.
Sarvala, Jouko
Toivonen, Jorma
| Year-class fluctuations of vendace (Coregonus albula) in Lake Pyhäjärvi, southwest Finland, during 1971-90 | | artikkeli | muikku, Pyhäjärvi (Säkylä) | | Canada | 1993 | 7 | | | Eripainos: National Research C... | I-Kalatutkimus: Muikku (avokotelo 4) |