Current Search: Kramer, Katie (x)
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Title
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Sexual and Ontogenetic Dimorphisms in the Anterior Lateral Line Nerve of the Yellow Singray, Urobatis jamaicensis.
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Creator
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Kramer, Katie, Newton, Kyle C., Kajiura, Stephen M., Office of Undergraduate Research and Inquiry
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Abstract/Description
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To fully understand the function of the elasmobranch electrosensory system it is necessary to examine electrosensory nerves extending from the ampullae of Lorenzini to the central nervous system. Studies detailing the composition of sensory axons are rare, but they have shown that ontogenetic and sexual dimorphism exists in the anterior lateral line nerve (ALLN) of numerous species. This study obtained a count of the number of axons comprising the ALLN in male vs. female and adult vs....
Show moreTo fully understand the function of the elasmobranch electrosensory system it is necessary to examine electrosensory nerves extending from the ampullae of Lorenzini to the central nervous system. Studies detailing the composition of sensory axons are rare, but they have shown that ontogenetic and sexual dimorphism exists in the anterior lateral line nerve (ALLN) of numerous species. This study obtained a count of the number of axons comprising the ALLN in male vs. female and adult vs. juvenile yellow stingrays (Urobatis jamaicensis). We hypothesized that males have more axons than females, and that the number of axons is ontogenetically constant. We expect males to have 30% more axons in their ALLN, and that the number of axons is ontogenetically constant for both sexes. This study will provide unique data about the electrosensory nerves of Yellow stingrays that can be used in future studies to make comparisons between other species.
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Date Issued
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2017
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PURL
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http://purl.flvc.org/fau/fd/FA00005624
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Subject Headings
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College students --Research --United States.
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Format
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Document (PDF)