| Avaa | Fabricius, Eric
Gustafson, Karl-Jakob
| Observations on the Spawning Behavior of the Grayling, Thymallus thymallus (L.) | | moniste | harjus, kutu, kutupaikat, meriharjus | Institute of Freshwater Research | Lund | 1953 | 30 | | Annual Report | For the year 1952 and short pa... | |