Alternative to Expensive, Commercially Produced Egg-Hatching Jars for Salmonids

Abstract The design and construction of an inexpensive egg-hatching jar is described. The jar provides the fish culturist with an alternative to hatching jars of similar design offered by various vendors at higher prices. This design has been used successfully at Hotchkiss National Fish Hatchery to hatch eyed eggs of rainbow trout Oncorhynchus mykiss at an average survival rate of approximately 90%, without the use of chemical fungicides.