Fisk MR, Giovannoni SJ, Thorseth IH
M. R. Fisk, College of Oceanic and Atmospheric Sciences, 104 Ocean Administration Building, Oregon State University, Corvallis, OR 97331-5503, USA. S. J. Giovannoni, Department of Microbiology, 220 Nash Hall, Oregon State University, Corvallis,
Science. 1998 Aug 14;281(5379):978-80. doi: 10.1126/science.281.5379.978.
The subsurface biosphere may constitute as much as 50 percent of Earth's biomass. Direct and indirect evidence suggests that an extensive biosphere exists in the rocks below the sea floor. This survey of basalts of the Atlantic, Pacific, and Indian Oceans supports the hypothesis that bacteria have colonized much of the upper oceanic crust, which has a volume estimated at 10(18) cubic meters. Although this is the largest habitat on Earth, its low abundance of bacteria constitutes much less than 1 percent of Earth's biomass.
地下生物圈可能构成地球生物量的50%。直接和间接证据表明，海底以下的岩石中存在广泛的生物圈。对大西洋、太平洋和印度洋玄武岩的这项调查支持了以下假设：细菌已在大部分上层洋壳中定殖，上层洋壳的体积估计为10¹⁸立方米。尽管这是地球上最大的栖息地，但其细菌丰度很低，占地球生物量的比例不到1%。
