Marine| Boothbay Harbor, Maine, USA |
| Heterotrophic flagellates of Botany Bay, Sydney, Australia |
| Eel Pond, Woods Hole, Massachusetts |
| Little Sippewissett salt marsh, Massachusetts, USA |
| Plum Island, Massachusetts coast, USA |
| Prawn Farm, Queensland, Australia |
| Radiolaria by O. R. Anderson |
| Sapelo Island, Georgia, USA |
| Provasoli-Guillard National Center for Culture of Marine Phytoplankton (CCMP) |
| Waters of Vineyard Sound |
| Ross Sea, Antarctica |
| Dinoflagellates of marine sands |
| Marine planktonic amoebae and other protists |
| Dinoflagellates of Australia |
| Phytoplankton of the Irish Sea |
| Plum Island Diatoms and Cyanobacteria |
| International Census of Marine Microbes |
| Coccolithophores |
| Helgoland phytoplankton species list |
| Helgoland zooplankton species list |
| Alfred Wegener Institute Phytoplankton |
| Marine benthic dinoflagellates - NW Australia |
| Marine microbes - NW Australia |
| Marine euglenids - NW Australia |
| Benthic dinoflagellates of Botany Bay (Australia) |
| Planktonic bacteria |
| Marine microbes from Idaho |
| star*sand: The micro*scope foraminifera site |
| Marine Viruses |
| Protists of the Pacific Ocean |
| Marine Microbial Ecology Group, Villefranche-sur-Mer |
| Port Jackson plankton |
| Plum Island Guide |
| Roscoff Culture Collection |
| Lake Pontchartrain microbes |
| Heterotrophic flagellates of marine habitats |
| Haeckel's Challenger radiolaria |
| Benthic Dinoflagellates of Greater Vancouver, Canada |
| SML Intertidal Pool |
| SML North Pond |
| Foraminifera Collection Michael Hesemann |
| Limnic and marine Protists of Northern Germany and the Alps |
| Gems from Tvärminne |
| Images from Schewiakoff, 1896 |
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Marine habitats are those contiguous sites with the major oceans and which have dissolved sodium chloride in tasteable concentrations. The oceans mostly contain about 30 grams per litre sodium, but this can be considerably higher in impounded regions where solar radiation leads to evaporation of water. At the other end of the range, the saline influence gives way to freshwater in estauries. Many lineages of organisms have originated within marine habitats - with branches overcoming the adaptive challenges that have allowed them to extend to freshwater and terrestrail habitats. Microbes tend to be somewhat less selective, with most groups being found in a wide array of habitat types, but with small clusters (species, genera, families) being found only in marine locations. It is with the study of marine ecosystems that the ecological significance of microbial communities in normal habitats was established and the concept of microbial food webs was born. Images are from various sources.This image was provided by D. Patterson.Image copyright D. Patterson, used under license to MBL (micro*scope).
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