ABSTRACT
Olfaction has been intensively studied in various fishes, and the accumulated knowledge has revealed both certain common basic structures, as well as various differences connected with specific ecological and foraging adaptations (Kleerkoper, 1969; Hara, 1975, 1992; Hara and Zielinski, 1989; Stabell, 1992; Shipley and Ennis, 1995; Doty, 2003; Hansen and Reutter, 2004). Reviews of these studies, including studies on the neurophysiology of these organs, have been published by Yamamoto (1982), Caprio (1984), Muller and Marc (1984), Zeiske et al. (1992), Hara (1994), Laberge and Hara (2001), Zielinski and Hara (2001), Hansen and Zielinski (2005), Valentinƒiƒ (2005), and Zeiske and Hansen (2005); and Abbreviations: OB, olfactory bulb; OE, olfactory epithelium; OL, olfactory lobes (forebrain); ON, olfactory nerves; OP, olfactory placodes; ORN, olfactory receptor neurons; RC, rod cells; SL, standard length (in mm)
studies on the role of olfaction in species and gender recognition have been performed on gobies (Tavolga, 1956), and on blennies (Losey, 1969); while major contributions to our understanding of olfaction, especially of the specificity of odor recognition by the olfactory receptor neuron (ORN), have been made by Buck (1996, 2000)and Dynes and Ngai (1998).
