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Free Content Distribution of Yeasts in the Indian Ocean

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Yeasts and molds were collected from 16 stations during Cruise 3 of the R/V Anton Bruun for the U. S. Program in Biology, International Indian Ocean Expedition. The transect investigated extended along the 60°E meridian from 11°56′N to 40°54′S at depths of 0-2,000 meters. Population densities of yeasts ranged from 0-513 cells/liter, with greatest concentrations in the Somali Current and Antarctic Intermediate waters. A total of 25 species of yeasts were isolated, 19 of which occurred infrequently, i.e., in less than 6 per cent of the positive samples. The commonly isolated species were classified ecologically into three arbitrary groups: (1) cosmopolitan species (Rhodotorula rubra and Candida atmosphaerica) present in all water masses studied; (2) widely distributed species (C. polymorpha and Rh. glutinis) absent from Red Sea water; (3) regionally distributed organisms obtained either from waters north of 22°S (Sporobolomyces hispanicus and Sp. odorus) or from southern waters (Candida sp. I and Rh. crocea). The relationship of yeast distribution to hydrographic and biological conditions is discussed. The incidence of molds appeared to be partially dependent on the proximity of terrigenous materials.

Document Type: Research Article

Publication date: 1967-06-01

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  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
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