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Abstract
During the spawning of a hatchery-maintained, landlocked strain of fall chinook salmon Oncorhynchus tshawytscha, a fish thought to be female on the basis of secondary sex characteristics was observed to release milt. Internal examination revealed two ovotestes, each containing an ovarian region with nearly ripe eggs as well as prominent testicular regions. A total of three testicular regions were observed, with two bracketing the ovary on one of the ovotestes. Genetically, this fish was a male. We believe this to be the first documented hermaphrodite from both a landlocked fall chinook salmon stock and a hatchery-maintained chinook salmon broodstock.