Default

 

BartholomewJerriMicrobiologyEffectsWaterVelocity.pdf Public Deposited

Downloadable Content

Download PDF
https://ir.library.oregonstate.edu/concern/defaults/sb397972b

Descriptions

Attribute NameValues
Creator
Abstract
  • Ceratomyxa shasta is a myxozoan parasite identified as a contributor to salmon mortality in the Klamath River, USA. The parasite has a complex life cycle involving a freshwater polychaete, Manayunkia speciosa and a salmonid. As part of ongoing research on how environmental parameters influence parasite establishment and replication, we designed a laboratory experiment to examine the effect of water flow (velocity) on completion of the C. shasta infectious cycle. The experiment tested the effect of two water velocities, 0.05 and 0.01 m/s, on survival and infection of M. speciosa as well as transmission to susceptible rainbow trout and comparatively resistant Klamath River Chinook salmon. The faster water velocity facilitated the greatest polychaete densities, but the lowest polychaete infection prevalence. Rainbow trout became infected in all treatments, but at the slower velocity had a shorter mean day to death, indicating a higher infectious dose. Infection was not detected in Chinook salmon even at a dose estimated to be as high as 80,000 actinospores per fish. The higher water velocity resulted in lower C. shasta infection prevalence in M. speciosa and decreased infection severity in fish. Another outcome of our experiment is the description of a system for maintaining and infecting M. speciosa in the laboratory.
Keyword
Rights Statement
Additional Information
  • description.provenance : Made available in DSpace on 2014-08-06T19:10:49Z (GMT). No. of bitstreams: 3 BartholomewJerriMicrobiologyEffectsWaterVelocity.pdf: 86610 bytes, checksum: e7345c480f23c98a6d810c20831d93ad (MD5) BartholomewJerriMicrobiologyEffectsWaterVelocity_Figures1-6.zip: 2724111 bytes, checksum: 403ada52bb25c0302289673c0761332a (MD5) BartholomewJerriMicrobiologyEffectsWaterVelocity_Table1.pdf: 12653 bytes, checksum: 5cd79467033e3a6b40b9d893538820a7 (MD5) Previous issue date: 2009-02
  • description.provenance : Submitted by Erin Clark (erin.clark@oregonstate.edu) on 2014-08-06T19:10:35Z No. of bitstreams: 3 BartholomewJerriMicrobiologyEffectsWaterVelocity.pdf: 86610 bytes, checksum: e7345c480f23c98a6d810c20831d93ad (MD5) BartholomewJerriMicrobiologyEffectsWaterVelocity_Figures1-6.zip: 2724111 bytes, checksum: 403ada52bb25c0302289673c0761332a (MD5) BartholomewJerriMicrobiologyEffectsWaterVelocity_Table1.pdf: 12653 bytes, checksum: 5cd79467033e3a6b40b9d893538820a7 (MD5)
  • description.provenance : Approved for entry into archive by Erin Clark(erin.clark@oregonstate.edu) on 2014-08-06T19:10:49Z (GMT) No. of bitstreams: 3 BartholomewJerriMicrobiologyEffectsWaterVelocity.pdf: 86610 bytes, checksum: e7345c480f23c98a6d810c20831d93ad (MD5) BartholomewJerriMicrobiologyEffectsWaterVelocity_Figures1-6.zip: 2724111 bytes, checksum: 403ada52bb25c0302289673c0761332a (MD5) BartholomewJerriMicrobiologyEffectsWaterVelocity_Table1.pdf: 12653 bytes, checksum: 5cd79467033e3a6b40b9d893538820a7 (MD5)

Relationships

Parents:

Items