Physiological ecology of a metalimnetic Cryptomonas population: relationships to light, sulfide and nutrients |
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| Authors: | Gasol Josep M; Garcia-Cantizano Josefina; Massana Ramon; Guerrero Ricardo; Pedros-Alio Carlos |
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| Institution: | Departament de Genètica i Microbiologia, Universitat Autònoma de Barcelona E-08193 Bellaterra
1Institut de Ciències del Mar, CSIC, Passeig Nacional s/n E-08039 Barcelona, Spain
2Departament de Microbiologia, Universitat de Barcelona E-08039 Barcelona, Spain |
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| Abstract: | The possible mechanisms by which Cryptomonas phaseolus maintainsa large metalimnetic population during stratification were studiedin Lake Cisó. The population was shown to always remainat the oxygen-sulfide interface despite the fact that sometimesthe amount of light reaching was <1% of incident light. Thismeant that the amount of light reaching the peak was sometimesmuch lower than the optimum light intensity for photosynthesisof the population, which was |
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