Gymnocephalus

Contingut

1. ↑ Bloch M. E., 1793. Naturgeschichte der ausländischen Fische. Berlín. Naturg. Ausl. Fische v. 7. i-xiv + 1-144.
2. ↑ uBio (anglès)
3. ↑ The Taxonomicon (anglès)
4. ↑ UICN (anglès)
5. ↑ Güldenstädt, A. J. von, 1774. Acerina; piscis, ad Percae genus pertinens, descriptus. Novi Commentarii Academiae Scientiarum Imperialis Petropolitanae v. 19: 455-462, Pl. 11.
6. ↑ Geiger, M. F. & Schliewen, U. K., 2010. Gymnocephalus ambriaelacus, a new species of ruffe from Lake Ammersee, southern Germany (Teleostei, Perciformes, Percidae). Spixiana, 33 (1): 119–137.
7. ↑ Holcík, J. & K. Hensel, 1974. A new species of Gymnocephalus (Pisces: Percidae) from the Danube, with remarks on the genus. Copeia 1974 (núm. 2): 471-486.
8. ↑ Otel, V., 1999. The presence of the species Gymnocephalus baloni Holcik et Hensel, 1974 (Pisces, Percidae) in the Danube Delta Biosphere Reserve. Analele St.ale Inst.Delta Dunarii 7:40-43.
9. ↑ Linnaeus, C., 1758. Systema naturæ per regna tria naturæ, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I. Editio decima, reformata. - pp. (1-4), 1-824. Holmiæ. (Salvius). «Enllaç».
10. ↑ Bast, H., H.M. Winkler i H. Hahn, 1983. Bemerkungen zur Biologie und Bedeutung des Kaulbarsches (Gymnocephalus cernuus) der Darß-Zingster Boddenkette. Fischerei Forsch. 21:34-38.
11. ↑ Hölker, F., 1992. Nahrungsbiologie des Kaulbarsches (Gymnocephalus cernua L.) in der Elbe. M.Sc. Thesis, Univ. Hamburg, Inst. Hydrobiol. Fischereiwiss. 104 p.
12. ↑ Hölker, F. i A. Temming, 1995. Gastric evacuation in ruffe (Gymnocephalus cernuus (L.)) and the estimation of food consumption from stomach content data of two 24h fisheries in the Elbe Estuary. Arch. Fish. Mar. Res. 44(1/2):47-67.
13. ↑ Hölker, F. i C. Hammer, 1994. Growth and food of the ruffe Gymnocephalus cernuus (L.) in the Elbe estuary. Arch. Fish. Mar. Res. 42(1):47-62.
14. ↑ Jamet, J.L., 1994. Feeding activity of adult roach (Rutilis rutilus (L.)), perch (Perca fluvialitis L.) and ruffe (Gymnocephalus cernuus (L.)) in eutrophic lake Aydat (France). Aquat. Sci. 56(4):376-387.
15. ↑ Kangur, K., A. Kangur i P. Kangur, 1999. A comparative study on the feeding of eel, Anguilla anguilla (L.), bream. Abramis brama (L.) and ruffle, Gymnocephalus cernuus (L.) in Lake Võrtjärv, Estonia. Hydrobiologia 408/409:65-72.
16. ↑ Klinkhardt, M., 1990. Karyologische Studien an verschiedenen Süßwasserfischarten aus brackigen Küstengewässern der südwestlichen Ostsee: I. Der Kaulbarsch (Gymnocephalus cernua (Linnaeus, 1758)). Zool. Anz. 224:156-164.
17. ↑ Pratt, D.M., Blust, W.H. i J.H. Selgeby, 1992. Ruffe, Gymnocephalus cernuus: newly introduced in North America. Can. J. Fish. Aquat. Sci. 49(8):1616-1618.
18. ↑ Linnaeus, C., 1758. Systema naturæ per regna tria naturæ, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I. Editio decima, reformata. - pp. (1-4), 1-824. Holmiæ. (Salvius). «Enllaç».
19. ↑ BioLib (anglès)
20. ↑ AQUATAB
21. ↑ Catalogue of Life (anglès)
22. ↑ Discover Life (anglès)
23. ↑ World Register of Marine Species (anglès)
24. ↑ FishBase (anglès)
25. ↑ UNEP-WCMC Species Database (anglès)