(full paper is archived in the Miller Library)
Title: Olfactory receptors and nerve transmission in rockfish of the genus Sebastes
Student Author(s): Flannery, Brendan
Faculty Advisor(s): Thompson, Stuart
Location: Final Papers Biology 175H
Date: June 1989
Keywords: nearshore fishes
Abstract: Work on olfaction in fish is significant in two major ways. First, characterization of effective attractants obviously would impact on commercial fishing. Second, examining basic olfactory mechanisms in fish could further our general understanding of sensory mechanisms in vertebrates. We examined the olfactory system in three abundant rockfish of the Sebastes genus in order to initiate such a program of research. We discovered extremely show conduction velocities of in the olfactory nerve of 15 to 25 cm/sec, and extremely small axons, even compared to other fish. Our studies raise questions about the organization of these axons in the olfactory nerve. Finally, tissue dissociation proved effective in isolating single receptor cells in high yield. Future research on olfaction in Sebastes rockfish looks very promising.