fairfolio
Saved Projects

Elasmobranch Olfactory Organ Morphology

ISEF · 2017 Animal Sciences

Demircan, Ayse

Is this your project?

Overview

Elasmobranchs - commonly known as sharks, skates, and rays - are known to possess highly acute olfactory sensitivity, with large variation of the morphological structures across all species. The surface area of the olfactory rosette does not correlate with olfactory sensitivity, however it may be related to optimizing flow of odors through the organ. This study tests the effects of morphological variation in the olfactory rosette by quantifying the morphological variation present in the olfactory rosette of several different species. I expect to see differences in the olfactory organ features that I measure, such a organ width, length, and other factors. Results show there is wide variation both across species and within species. For example, I found that for almost all species, the width of the rosette was half of the length of the rosette. S. lewini (scalloped hammerhead sharks) have the longest rosette length relative to the total length of the shark, while A. vulpinas (common thresher) has the shortest rosette length relative to the total length. Implications of this study include insight on the key roles that morphological structures elasmobranchs possess, and explain the variation present both across and within species.

Working on something like this? See what's been done and what's still open.

Competition history

Resources

Related projects

Closest projects by meaning, across every fair and year in the corpus.

Browse more like this

Report a problem

Source: Regeneron International Science and Engineering Fair

Save projects to your library

Sign in with Google to keep track of projects you find interesting, organized into folders. An account also raises your daily allowance for “Has this been done?”, and lets you create a key for the MCP server with a much higher limit than anonymous use. Browsing stays public.

Continue with Google