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Release and consumption of DMSP from Emiliania huxleyi during grazing by Oxyrrhis marina Public Deposited

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Article appears in Marine Ecology Progress Series and is copyrighted by Inter Research

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  • Degradation and release to solution of intracellular dimethylsulfoniopropionate (DMSP) from Emiliania huxleyi 370 was observed during grazing by the heterotrophic dinoflagellate Oxyrrhis marina in 24 h bottle incubations. Between 30 and 70 % of the lost algal DMSP was metabolized by the grazers without production of dimethylsulfide (DMS) when grazer densities were 150 to 450 ml‾¹ The rest was released to solution and about 30% was converted to DMS by bacteria associated with the grazer culture. These experiments demonstrate that grazing by herbivorous protists may be an important sink for DMSP in marine waters, removing a potential source of DMS. Microzooplankton grazing may also indirectly increase the production of DMS by transferring algal DMSP to the dissolved pool, making it available for bacterial metabolism.
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  • Wolfe, G. V., Sherr, E. B. , and Sherr, B. F. , 1994, Release and consumption of DMSP from Emiliania huxleyi during grazing by Oxyrrhis marina: Mar. Ecol. Prog. Ser., v. 111, p. 111 - 119.
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  • Marine Ecology Progress Series
  • Vol. 111 (1994)
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