The breeding in fresh water of Sicyopterus lagocephalus , a gobid fish of the Reunion rivers

In Reunion island, it was demonstrated that "bichiques," juveniles of Gobiid fish, fished near the sea shore and in rivers near estuaries belong to the species Sicyopterus lagocephalus . The use of drift nets has permitted to harvest clusters of eggs laid in rivers (and not in the sea) by females of S. lagocephalus . Breeding induced by human chorionic gonadotropine followed by rearing shows that embryo development is realised in rivers and that the larva must swim into sea water within 3 days after the eggs have hatched out.