Development of Philonema oncorhynchi and Philonema
agubernaculum in Cyclops bicuspidatus were followed and
compared by experimentally infecting the copepods with larvae
obtained from gravid female worms in spawning salmon and
trout. Larvae were dissected from copepods for examination
at an interval of two to three days. They were found to
undergo two moults in the copepods. Three larval stages are
described. All the larval stages of the two species of
Philonema are morphologically identical. The rates of
development of the larvae were observed to be directly
proportional to temperatures between 4° to 15°C. The Q₁₀ for the range was calculated as 4. The rates of development at 10° were the same in the two species. The effects of temperature on larval development are discussed. An attempt is made to correlate the rates of development of Philonema larvae in the copepods under laboratory conditions and the infection of sockeye salmon in Cultus Lake, British Columbia. / Science, Faculty of / Zoology, Department of / Graduate
| Identifer | oai:union.ndltd.org:UBC/oai:circle.library.ubc.ca:2429/37076 |
| Date | January 1966 |
| Creators | Ko, Ronald Chun Chung |
| Publisher | University of British Columbia |
| Source Sets | University of British Columbia |
| Language | English |
| Detected Language | English |
| Type | Text, Thesis/Dissertation |
| Rights | For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use. |
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