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1. The decline of the finnish vendace, Coregonus albula L., catch and the dynamics of the fishery in the Bothnian Bay by Mikael Hildén, Hannu Lehtonen, Paula Bohling Publication: [S.l.] 1984 [s.n.] . p. 33-47 25 cm Availability: Items available: Biblioteca de Algés (1),

2. The influence of pollution on fisheries and fish stocks in the finnish part of the Gulf of Finland by Hannu Lehtonen, Mikael Hilden Publication: Availability: Items available: Biblioteca de Algés (1),

3. Natural occurrence of Pike-perch - Stizostedion lucioperca L. - and sucess of introductions in relation to water qualify and lake area in Finland by Hannu Lehtonen, Tapani Miina, Tom Frisk Publication: [S.l.] 1984 [s.n.] . p. 189-196 24 cm Availability: Items available: Biblioteca de Algés (1),

4. Scientific basis for fisheries management of vendace, Coregonus albula L., in the Bothnian Bay by Hannu Lehtonen Publication: [S.l.] 1983 [s.n.] . p. 77-82 25 cm Availability: Items available: Biblioteca de Algés (1),

5. Stock assessment of pike-perch - Stizostedion lucioperca L. - in the Helsinki sea area by Hannu Lehtonen Publication: Helsinki 1979 Finnish Fisheries Research . v. 3, p. 1-12 Availability: Items available: Biblioteca de Algés (1),

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