Sunil previously answered my question on predator recruitment in the affirmative. Bill and Shorty's posts are exactly why I ask that question.

My concern is that GSH from hatcheries have a history of disease that makes them functionally non-reproductive after a few years.

Pleistophora ovarie infects golden shiner ovaries, reducing egg production. Egg masses appear discolored, opaque, yellow or brown instead of light green. Treatments for these diseases have not been developed and prevention requires culling of infected fish and disinfection of ponds.

The PCR and histological demonstration of the presence of O. ovariae spores in oocytes and fry, and the failure of strong DNA denaturants to reduce egg-associated copies, give evidence that O. ovariae is vertically transmitted within eggs. Denaturant = the act or process of depriving something of its natural character or properties.

Last edited by Bill Cody; 10/24/22 08:18 PM. Reason: added definition