Distribution and fluctuation of bacteria inhibiting the growth of a marine red tide phytoplankton Gymnodinium mikimotoi in Tanabe bay (Wakayama pref., Japan)

Distribution and seasonal fluctuation of the bacteria which inhibit the growth of a red tide marine dinoflagellate Gymnodinium mikimotoi, were surveyed in Tanabe Bay (Wakayama Pref., Japan), using the newly developed MPN method with an axenic culture of G. mikimotoi, G. mikimotoi's growth inhib...

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Published inFisheries science Vol. 61; no. 5; pp. 780 - 786
Main Authors Yoshinaga, I. (Kyoto Univ. (Japan). Coll. of Agriculture), Kawai, T, Takeuchi, T, Ishida, Y
Format Journal Article
LanguageEnglish
Published 1995
Subjects
BACTERIA
BIOLOGICAL COMPETITION
COASTS
COMPETENCIA BIOLOGICA
COMPETITION BIOLOGIQUE
COSTA
COTES
DINOPHYCEAE
DISTRIBUCION GEOGRAFICA
DISTRIBUTION GEOGRAPHIQUE
GEOGRAPHICAL DISTRIBUTION
GROWTH INHIBITORS
Gymnodinium mikimotoi
INHIBIDORES DEL CRECIMIENTO
INHIBITEUR DE CROISSANCE
JAPAN
JAPON
Marine
PLANKTON BLOOMS
PROLIFERACION DE PLANCTON
PROLIFERATION PLANCTONIQUE
SEASONAL VARIATION
VARIACION ESTACIONAL
VARIATION SAISONNIERE
INW, Japan, Honshu, Wakayama Prefect., Tanabe Bay
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Summary:Distribution and seasonal fluctuation of the bacteria which inhibit the growth of a red tide marine dinoflagellate Gymnodinium mikimotoi, were surveyed in Tanabe Bay (Wakayama Pref., Japan), using the newly developed MPN method with an axenic culture of G. mikimotoi, G. mikimotoi's growth inhibiting bacteria (Gm-GIB) were detected at 10 super(3)-10 super(4) cells/ml before occurrences of huge red tides by G. mikimotoi at the beginning of August in 1990 and from the end of August to the beginning of September in 1991. The number of Gm-GIB fell by about two orders of magnitude at the blooming periods of G. mikimotoi, and then increased again after the blooms declined. These results suggest that the fluctuation of Gm-GIB counts in seawater is significantly related to the development and decline process of G. mikimotoi red tide. Forty strains of Gm-GIB isolated in this study all acted as killers against this dinoflagellate rather than as suppressers on the algal growth under laboratory conditions. The precise causes of the fluctuation of Gm-GIB in seawater environments remain unknown.
Bibliography:T01
9607387
H60
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ISSN:0919-9268
1444-2906
DOI:10.2331/fishsci.61.780