PARASITISM OF ASTERIONELLA FORMOSA HASS. BY A CHYTRID IN TWO LAKES OF THE RAWAH WILD AREA OF COLORADO1
- 1 March 1966
- journal article
- Published by Wiley in Journal of Phycology
- Vol. 2 (1) , 41-45
- https://doi.org/10.1111/j.1529-8817.1966.tb04591.x
Abstract
The populations of Asterionella formosa Hass. in two subalpine lakes in the Rawah Wild Area, Colorado, were composed of colonies of five distinct size classes based on frustule length. The spring bloom in these two lakes was dominated by cells of the Beta or Gamma population, whereas the fall pulse was dominated by cells of the Alpha and Beta, or Alpha populations. The Beta population was physiologically unique in that it was parasitized by the chytrid Rhizophidium planktonicum Canter. The development of the parasite population could not be correlated with the concentration or the growth phase of the host population. The occurrrence of parasitism did not noticeiceably affect the population growth patterns of the Asterionella populations.Keywords
This publication has 7 references indexed in Scilit:
- Parasitic and Saprophytic Phycomycetes Which Invade Planktonic Organisms. I. New Taxa and Records of Chytridiaceous FungiMycologia, 1958
- THE PHYTOPLANKTON POPULATION AS A COMPOUND PHOTOSYNTHETIC SYSTEM*New Phytologist, 1957
- PHOTOSYNTHETIC CHARACTERISTICS OF SOME FRESHWATER PLANKTON DIATOMS IN RELATION TO UNDERWATER RADIATIONNew Phytologist, 1957
- The Relative Growth Rates of Three Plankton Diatoms in Relation to Underwater Radiation and TemperatureAnnals of Botany, 1955
- Factors Influencing the Growth of PhytoplanktonJournal of the Fisheries Research Board of Canada, 1953
- Studies on Asterionella Formosa Hass: II. Nutrient Depletion and the Spring MaximumJournal of Ecology, 1950
- STUDIES ON PLANKTON PARASITESNew Phytologist, 1948