Culture of Vibrio alginolyticus C7b, a potential probiotic bacterium, with the microalga Chaetoceros muelleri

In this study, an attempt is made to evaluate the performance of the microalga Chaetoceros muelleri when cultured with a potential probiotic bacterium Vibrio alginolyticus strain C7b as compared when both are cultured alone in medium f/2.Strain C7b grew significantly better and lasted longer when grown with the microalga than when grown alone. The microalga density was not affected by the presence of the bacteria compared when grown alone.C. muelleri and the bacterial strain C7b can be cultured together for up to 9 days to achieve a high density (5.15 x 10(6) and 6.63 x 10(4) cell ml(-1), respectively) and then fed to the protozoeal and mysis stages of penaeid shrimp. (C) 2002 Elsevier Science B.V. All rights reserved.