L. Forró szerk.: Miscellanea Zoologica Hungarica 12. 1998 (Budapest, 1998)

Guti, G.: Sturgeons in the Hungarian section of the Danube and draft program for their artificial propagation

critical feeding and spawning habitats. 2) The verification of the theoretical concept of nonanadromous populations of A. nudiventris and A. gueldenstaedti in the Middle Danube. 3) Obtain information on movements of restocked A. ruthenus. 4) Elaborate the technology of interspecific androgenesis for Acipenseridae and to establish a deep-frozen gene bank (cryopreserved sperm) for restoring Danubian sturgeons. The results of these preliminary researches could contribute a more complex restoration program of Danubian sturgeons. References Bercsényi, M., Magyari, L, Urbányi, B., Orbán, L. & Horváth, L. (1996): Hatching out goldfish from common carp eggs: Interspecific androgenesis between two fish species. - Genome (in press). Berke, L. (1956): Ritka halászzsákmány. [Acipenser nudiventris from the Danube] - Halászat 49: 85. Guti, G. (1997): Vágótokot fogtak a Duna szigetközi szakaszán. (Russian sturgeon {Acipenser gueldenstaedti) in the Szigetköz section of the Hungarian Danube) - Halászat 90: 174-175. Jaczó, I. (1974): A kecsege mennyiségének változása folyóinkban az 1947-1970. évi fogások és vizsgálatok alapján. [Changes in the sterlet stocks in Hungarian rivers on the basis of investigations and catch statistics between 1947-1970] - Halászat 20: 12. Pénzes, B. (1970): Vágótok a paksi Duna-szakaszról. [Acipenser gueldenstaedti from the Danube at Paks] - Búvár 12: 440. Pintér, K. (1991): Sturgeons in Hungary, past and present situation. - In: P. Williot (ed.) Acipenser, CEMAGREF Publ. 173-178. Pintér, K. 1994: A tokalakúakkal (Acipenseriformes) foglalkozó magyar közlemények válogatott bibliográfiája. (Selected bibliography of Hungarian works on sturgeons (Acipenseriformes)) Halászat 87: 37-39. Tóth, J. (1979): Changes in the catching data of sturgeon Acipenser ruthenus L. in the Hungarian sector of the Danube. - Annal. Univ. Sei. Budapest. 20-21: 265-269. Vásárhelyi, I. (1957): Felső-tiszai színtok és a tiszalöki vízlépcső. [Acipenser nudiventris catches in the upper Tisza] - Halászat 14: 105. Author's address: Dr. Gábor Guti Hungarian Danube Research Station, Hungarian Academy of Sciences H-2131 Göd, Jávorkau. 14. Hungary