Abstract:1. Sediments of aquatic ecosystems are hotspots for biological activity. Here, we address the question if, within surface sediments, oxygen consumption is linearly related to cell abundance. In addition, we identify habitat-specific factors influencing underlying microbial processes. 2. Sediment microcosms were established from three sites within oligotrophic Lake Annsj€ on, Sweden, to use microsensors for measuring oxygen profiles and estimate spatially resolved oxygen consumption rates at the water-sediment … Show more
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