Survival and Reproduction Potential of Philodina roseola (Ehrenberg) (Rotatoria, Bdelloida) under Various Temperature Conditions

✍ Scribed by Dr. L. I. Lebedeva; T. N. Gerasimova

• Publisher: John Wiley and Sons
• Year: 1987
• Tongue: English
• Weight: 699 KB
• Volume: 72
• Category: Article
• ISSN: 1434-2944
• DOI: 10.1002/iroh.19870720606

✦ Synopsis

Survival data, in addition to data on growth and reproduction rate, are necessary to estimate rotifer productivity under various thermal conditions. A method of individual culturing of Philodina roseolu helped the authors to obtain data concerning length of life span and realisation of reproduction potential at different temperatures, ranging from 9 to 3.5 O C . The method also ~v a s helpful in revealing the causes of individual deaths. It is shown that at a tomperature of 20 O C net reproduction rate (R,,) of Ph. roseob is maximum and is equal to reproduction potential of the individual. The peculiarity of Philodinn ontogenetic reaction t o temperature beyond optimum is thc impairment of reproduction process.