Growth of Cyclotella meneghiniana Kutz. I. Effects of temperature, light and low rate of nutrient supply

H. M. Shafik, S. Herodek, L. Vörös, M. Présing, K. T. Kiss

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

A strain of Cyclotella meneghiniana was isolated from the River Danube. The optimum irradiance and temperature for growth were determined in batch cultures. The optimum temperature for growth was 25 °C. The estimated saturated irradiance was near 125 μE m-2 s-1. The calculated I(k) for growth and photosynthesis were 30 ± 3 and 44 ± 6 μE m-2 s-1 respectively. A continuous culture technique was used to test the growth and cell composition at the transition state between batch, nutrient sufficiency, and a low rate of nutrient supply. Algal response was characterized by high intracellular N and C with negative growth rate. At a low dilution rate (0.06 d-1), the continuous culture theory was not followed. This critical rate is characterized by low chlorophyll-a content per cell and may depend on the mode of nutrition.

Original languageEnglish
Pages (from-to)139-147
Number of pages9
JournalAnnales de Limnologie
Volume33
Issue number3
DOIs
Publication statusPublished - Jan 1 1997

Keywords

  • Cell composition
  • Cyclotella meneghiniana
  • Light
  • Low growth rate
  • Temperature

ASJC Scopus subject areas

  • Aquatic Science

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