Microbial Diversity in Freshwater and Marine Environment

Nepal Journal of Biotechnology

Sunil Pandey¹  Sagar Aryal²  Gaurab Karki² 

[1] Department of Microbiology, Nobel College, Kathmandu;Department of Microbiology, St. Xavier’s College, Kathmandu;

关键词: ecology;    microorganisms;    nutrition;    water;    phototrophs;   

DOI  :  10.3126/njb.v3i1.14236

来源: DOAJ

【 摘 要 】

Water covers seven tenths of the Earth's surface and occupies an estimated total volume of 1,386,000,000 cubic kilometers (km3). Of all the water found on Earth, 97% is marine. Maximum of this water is at a temperature of 2 to 3°C and devoid of light; 62% is under high pressure (>100 atm). Microscopic phytoplankton and associated bacteria generate a complex food web that can extend over long distances and extreme depths. The marine environment looks so vast that it will not be able to be exaggerated by pollution; however, in coastal areas human activities are increasingly disrupting microbial processes and damaging water quality.