Lack of Seasonality for Cercariae of Nanophyetus salmincola in the Snail Juga silicula Public

http://ir.library.oregonstate.edu/concern/honors_college_theses/gh93h129m

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Nanophyetus salmincola is a well-studied parasite of their definitive mammal hosts. However, the conditions that signal the time for shedding of N. salmincola cercariae from their first host, the juga snail (Juga silicula), is not fully understood. A digenetic trematode indigenous to the American Pacific Northwest, N. salmincola can be found in nearly every stream in the coastal region and the Columbia River where the intermediate snail host can be found. In order to assess if seasonality or temperature conditions are involved in the shedding of cercariae, samples were taken monthly from the upper South Santiam River and Oak Creek, Oregon. These locations were chosen to represent cold and warm water conditions, respectively, over twelve months. Snails were brought into the laboratory to be assessed for shedding percentages of the groups. I found that there is no clear shedding pattern with respect to time of year or water temperature of N. salmincola from the intermediate host juga snail. This implies that snails could be infective to fish not just in summer months as formerly thought.
Resource Type
Date Available
Date Copyright
Date Issued
Degree Level
Degree Name
Degree Grantor
Advisor
Non-Academic Affiliation
Keyword
Rights Statement
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Made available in DSpace on 2016-09-08T20:59:19Z (GMT). No. of bitstreams: 2 license_rdf: 1223 bytes, checksum: d127a3413712d6c6e962d5d436c463fc (MD5) LoftonShelbyN2016.pdf: 3652206 bytes, checksum: 43ccff69fb2b52830761d20c0d5bf4fa (MD5)
  • description.provenance : Submitted by Shelby Lofton (loftons@oregonstate.edu) on 2016-09-02T23:32:17Z No. of bitstreams: 2 license_rdf: 1223 bytes, checksum: d127a3413712d6c6e962d5d436c463fc (MD5) LoftonShelbyN2016.pdf: 3652206 bytes, checksum: 43ccff69fb2b52830761d20c0d5bf4fa (MD5)
  • description.provenance : Approved for entry into archive by Steven Van Tuyl(steve.vantuyl@oregonstate.edu) on 2016-09-08T20:59:19Z (GMT) No. of bitstreams: 2 license_rdf: 1223 bytes, checksum: d127a3413712d6c6e962d5d436c463fc (MD5) LoftonShelbyN2016.pdf: 3652206 bytes, checksum: 43ccff69fb2b52830761d20c0d5bf4fa (MD5)

Relationships

Parents:

This work has no parents.

Last modified

Downloadable Content

Download PDF

Items