Re: NANFA-- Rivulus reproduction

R.W.Wolff (
Thu, 30 Dec 1999 13:27:14 -0600

I incubated my eggs in freshwater in clear containers at room temperature.
that is how I got males, according to something I read somewhere that they
did a study on the egg development under different conditions. I cannot
find where I read this, which is too bad, alot of good information.
something with the light, freshwater, and possibly temperature cued the
eggs suposedly to become male. Must be a sign to the eggs that "things are

> reproduce in fresh water. Living in the fresh water could interfere with
> hormonal cues to ovulate, to actually produce the eggs, or the eggs may
> develop in fresh water.

/"Unless stated otherwise, comments made on this list do not necessarily
/ reflect the beliefs or goals of the North American Native Fishes
/ Association"
/ This is the discussion list of the North American Native Fishes Association
/ To subscribe, unsubscribe, or get help, send the word
/ subscribe, unsubscribe, or help in the body (not subject) of an email to
/ For a digest version, send the command to
/ instead.
/ For more information about NANFA, visit our web page,