That's interesting Dave. Thanks for sharing that.
I'm considering manually spawning some perch next year using the "dry method." Along with insuring I have fertilized eggs, if I use a human chorionic gonadotropin injection I can insure they all hatch at the same time which is important. If anything I can say I tried it.
Of course that depends on the red tape and if its cost effective.
Hopefully I wouldn't have as much trouble getting the hormone as I do fertilizer.
BTW is this hormone from humans or something? Maybe cadavers?