In 1884 he hatched the adhesive eggs of the smelt, although all previous attempts had been failures.
The female lays the large adhesive eggs as a mat on the spawning surface, which the male fertilises.
The female releases adhesive eggs randomly over the water bottom and abandons them.
The adhesive eggs are then released to rest in the nest and spawning continues for up to two weeks.
Up to 1,000 adhesive eggs are laid on a clean, flat surface and both parents guard them aggressively.
This species has adhesive eggs and the male displays parental care.
The female eventually enters the nest, releases her adhesive eggs, and then leaves.
The female lays adhesive eggs that have the ability to stick to algae.
Fish species in this zone also lay adhesive eggs.
Fish species found in this zone lay adhesive eggs in the weeds.