The Effects of Wavelength on the Growth of Licmophora abbreviata

  • Benjamin Chang
  • Patrick Geeraert
  • Tajvir Magat
  • Joseph Pooley


The aim of this experiment was to investigate the effects of differing light wavelengths on the growth of Licmophora abbreviata. The experiment was conducted by growing 4 identical populations of the organism in separate test tubes; 3 of these populations had their test tubes covered by filters that restricted available wavelengths of light. Over a period of two and a half weeks, samples were taken from each test tube five times, and the number of cells were counted under a hemocytometer in order to track population growth. The results indicated that there was no significant difference between the growth rates under different wavelengths.