Effect of various organic nutrients on the reproductive rates of bacterivorous hymnostomes in a fresh water Canal, Shibin El-Koum, Menoufia, Egypt

ABSTRACT

The effect of adding two different organic materials; wheat extract and bactopeptone, was studied on some of the most abundant bacterivorous hymnostomes collected from freshwater canal in Shebin El-Koum, Monoufia. It was found that some of these ciliates prefer plant protein as wheat, others prefer animal protein as bactopeptone, someone have the ability to accommodate with both organic materials. A significant positive relationship between log doubling times and log cell volumes of these hymnostomes was confirmed