A comparison of phototrophic bacteria in two adjacent saline meromictic lakes

descriptionPublicationkeyboard_double_arrow_right Article 01 Sep 1983 English Publisher:Springer Science and Business Media LLCJournal:Hydrobiologia, volume 105, pages 53-61 (issn: 0018-8158, eissn: 1573-5117,

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Authors: R. D. Parker; J. R. Lawrence; U. T. Hammer;

doi: 10.1007/bf00025176

A comparison of phototrophic bacteria in two adjacent saline meromictic lakes

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Abstract

Two adjacent saline, meromictic lakes in Saskatchewan host different populations of phototrophic bacteria. Deadmoose Lake hosts a population of Lamprocystis roseopersicina (Chromatiaceae) while in Waldsea Lake a population of a Chlorobium species (Chlorobiaceae) is dominant. Differences in light quantity, light quality, temperature, pH and Lamprocystis' capacity for photoorganoheterotrophic growth explain why different genera of phototrophic bacteria are found within the two lakes. These phototrophic bacteria make a significant contribution to total photosynthetic productivity, fixing 14.3 and 32 g C m-2 year -1 in Deadmoose and Waldsea Lake respectively.

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University of Saskatchewan
Canada

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