Sociedad Española de Killis, S.E.K.
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Breeding
Reproduction of Killifish is not usually seasonal, and usually is continuous. Yes there is a small seasonality caused by the rainy season, especially in non year. But never do great job as well couples put some eggs per day. At the stop bridal covers the male to the female with his dorsal fin and the subject collaborating with the anal and presses against the support of lay. Eggs in many cases, are fixed by of adhesive filaments in the case of non-annually.
Eggs have a tough outer membrane and have a long incubation period of 2 to 3 weeks, sometimes with a period of arrest (diapause), and a few days break to birth. These diapause can last years, the most contrasting in nature has been 7 years for Symp. antenori . Some Rivulinos have a unique character in fish. There is a chance to perpetuate their environment, thanks to the eggs are "resistant eggs." Fish that are classified as "annual", put stickers on the eggs the bottom bed. Subsequently loses water habitat, while retaining some moisture, by evaporation of water during the warm-dry season. The eggs have an alternative developmental period with long pauses, the survival is more than a year. When their habitat is flooded either by rainfall or overflow of water courses nearby, the eggs hatch and a new generation is born, causing it to continue its life cycle. Yet not all the eggs hatch, in anticipation of insufficient rains, or to subsequent generations cross with vertical crosses uncles and nephews.
Group behavior is rare in the Killifish, as well as the care of their offspring (primitive character). Often live in small towns like "harem", composed of a group of females and one dominant male accompanied by others are reluctant to approach. Exceptions are the Procatopus who live in large groups as well as Lamprichcthys and Jordanelle floridae start caring until birth.