@larso1dl @DrReptilia It's easy to determine black egg females and mature males. Earlier stages are harder because they start looking very similar. Here's a great paper from Justin Chiotti and the HEC folks about it. https://t.co/g1naOL6jIb
RT @Aqua_Amare: Ultrasonography is a quick and reliable way to assign sex in lake #sturgeon in various stages of reproduction https://t.co/…
Ultrasonography is a quick and reliable way to assign sex in lake #sturgeon in various stages of reproduction https://t.co/Jv0cGkhbIP