MARINE AND FRESHWATER
WATER IS A MICROBIAL HABITAT
GASES
LIGHT
NUTRIENT CYCLING
FRESHWATER ECOSYSTEM
IN GALCIER AND FROZEN LAKE
IN STREAMS AND RIVER
IN LAKES
MARINE ECOSYSTEM
IN ESTUARIES & SALT MARSHES
WINOGRADSKY COLUMN
IN OPENING OCEAN
AQUATIC VIRUSES
IN BENTHIC MARINE ENVIRONMENT