Egg-layer species
· Goldfish
· Koi carp
· Zebra danio
· Black window tetra
· Neon tetra
· Serpae tetra
Gourami
(Trichogasterspecies)
Gourami are
egg layer species which lay eggs in water during breeding season and
after laying eggs the male fish spray milt over the eggs and eggs are fertilized. After hatching larvae comes out
and later swim freely after some time
·
Gouramies like Blue
gourami, Trichogastertrichopterus; Gold gourami (another mutant of T.
trichopterus); Rainbow (stripped) gourami/ Dwarf gourami, Colisafasciata
and C. lalia; Pearl gourami (T. leeri); Moonlight gourami (T.
microlepis). have been introduced and successfully reared in the rice
field.
· Release
adult healthy specimens of different species of gourami, both male and female
at1:1 ratio, in the rice fields having at least 15 cm of water depth in the
rice fields.
· The
gourami species breed mostly during the month of June to August. They are egg
layer. They prepare bubble nests using canopy of rice plants and lay greenish
eggs within the nest.
· The
egg mass hatches after 20-25 hours depending on the water temperature. Fry are
recovered after two months.
Other egg layer ornamental fish species
· The Barbs like Rosy barbs (Puntius
conchonis), Tiger barbs (Puntius tetrazona) are
potential species for culture in
rice fields.
· Danios like Zebra
danio (Brachydaniorerio) are indigenous to the rice ecology and have good scope for culture in rice fields.