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Acta Biol Hung. 2011 Dec;62(4):485-8. doi: 10.1556/ABiol.62.2011.4.13.

Induced oogenesis of the European eel (Anguilla anguilla L.) in freshwater condition.

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Department of Fish Culture, Szent István University, Páter K. u. 1 H-2100 Gödöllő, Hungary.


European eel is a catadromous fish species, which means that after living in freshwater premature individuals adapt to sea water, and migrate to the Sargasso Sea for spawning. Although male eel can be sexually matured even in freshwater, to date, it was believed that female eel can be matured only in seawater. Here we show that the process of sexual maturation may be induced in freshwater by treating female eels with carp pituitary (GSI = 9.87 ± 1.55%). It is thus proposed that seawater condition is not an obligatory environment for stimulating gametogenesis and for artificial maturation of the European eel in neither gender.

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