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A Chemotrophic Ecosystem

The wonders of Romania’s “Movile Cave”

Most people would have been taught that life on Earth depended entirely on the sun and the green plants. The latter with their ability in the presence of chlorophyll and light to turn the inorganic molecules CO2 and water into organic carbohydrate (known as photosynthesis), are said to be the basis of the food chain for all animals A few people, however, may also have been taught that there is an alternative to photosynthesis, namely chemosynthesis and that this gave rise to a food chain, for example near hydrothermal vents, not based on green plants and sunlight, but on thermophilic bacteria that use hydrogen and sulphides to build organic material and release methane. But deep sea hydrothermal vents are not the only places where chemosynthetic activity leads to a food chain. The so-called “black layer” a few centimeters below the surface of intertidal mudflats is also a place of chemosynthesis, but the most amazing place is “Movile”. —>—>