Sediments| Athens, Georgia, USA |
| Heterotrophic flagellates of Botany Bay, Sydney, Australia |
| Eel Pond, Woods Hole, Massachusetts |
| Lamont Pond, freshwater, New York |
| Little Sippewissett salt marsh, Massachusetts, USA |
| Plum Island, Massachusetts coast, USA |
| Yellowstone National Park (Wyoming, USA) |
| Plum Island Diatoms and Cyanobacteria |
| Dinoflagellates of marine sands |
| Freshwater and Terrestrial Microbes of Idaho (USA) and Elsewhere |
| Heterotrophic flagellates of marine habitats |
| Protozoan biomonitors in China |
| Lake Donghu, China |
| Benthic dinoflagellates of Botany Bay (Australia) |
| Marine benthic dinoflagellates - NW Australia |
| Marine microbes - NW Australia |
| Freshwater euglenids - NW Australia |
| Freshwater microbes - NW Australia |
| Marine euglenids - NW Australia |
| Marine microbes from Idaho |
| Protists from Sao Paulo, Brazil |
| Ellicott Creek, Buffalo |
| Benthic Dinoflagellates of Greater Vancouver, Canada |
| SML Crystal Lake |
| SML Intertidal Pool |
| SML North Pond |
| Foraminifera Collection Michael Hesemann |
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Within this category we include sediments that are continually or periodically inundated with water. That captures sands and muds under and around the edges of oceans and freshwater habitats - but we exclude the habitats that are continually exposed to air - the terrestrial habitats. Sediments often have an abundant and diverse microbial community - gravity guarantees a continuing supply of nutrients in the form of sedimenting detritus - many also have access to oxygen and light. The physical and chemical characteristics change dramatically with depth in sediments, especially as supplies of oxygen run out and the habitat becomes anoxic. Those sediments which are unstable (such as coastal sites)may have a limited diversity of so-called higher plants and animals to compete with the microbial community. Images from different sources.This image was provided by Shauna Murray. Image copyright: Shauna Murray, used under license to MBL (micro*scope).
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