Olfactory biology of two vertebrate species: Central projection of a subpopulation of olfactory sensory neurons in the sea lamprey ( Petromyzon marinus) and the production of putative reproductive pheromone(s) in the round goby (Neogobius melanostomus).
Date of Award
Biology, Animal Physiology.
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Both the sea lamprey (Petromyzon marinus) and the round goby (Neogobius melanostomus) are two fish species that invaded the Great Lakes; they likely use sex pheromones that are fundamental to their reproductive success. Understanding pheromone communication could potentially lead to population control of these two species. In the larval sea lamprey, topographic and spatial projections from the olfactory sensory neurons (OSNs) to the olfactory bulb were studied. These projection patterns may be an initial step in organizing olfactory odourant information. Studies in the round goby indicate that the reproductively mature male releases 5beta-reduced androgenic steroidal pheromone(s) that attracts ripe females. Steroid biosynthesis of these compounds was studied in both the testes and the seminal vesicles. The testis contains specialized glandular tissue that may be responsible for the production of pheromonal 5beta-reduced androgens. The seminal vesicle may produce and store pheromonal steroids; excretions from this organ may serve as a vehicle for pheromones to enter aqueous environment. (Abstract shortened by UMI.)Dept. of Biological Sciences. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis2004 .A73. Source: Masters Abstracts International, Volume: 43-03, page: 0761. Adviser: B. Zielinski. Thesis (M.Sc.)--University of Windsor (Canada), 2004.
Arbuckle, Wesley J., "Olfactory biology of two vertebrate species: Central projection of a subpopulation of olfactory sensory neurons in the sea lamprey ( Petromyzon marinus) and the production of putative reproductive pheromone(s) in the round goby (Neogobius melanostomus)." (2004). Electronic Theses and Dissertations. 2912.