Microorganisms in Marine and Freshwater Ecosystem
Freshwater Ecosystem
lakes
light penetration
littoral zone
temperature
hypolimnion
thermocline
epilimnion
eutrophic
nutrient-rich
anoxic
oligotrophic
nutrient-poor
oxic
streams & rivers
lentic
free standing
lotic
free running
nutrients
allochthonous
out-stream sources
autochthonous
in-stream production
glaciers & permanently frozen lake
support a variety of m/os
e.g thick ice caps that block solar radiation
Marine Ecosystem
benthic marine environment
hydrothermal vents
seafloor
ocean sendiments
aquatic viruses
virioplankton
open ocean
photic zone
pelagic zone
cyanobacteria
estuaries & salt marshes
bottom
ferment prodct accumulation
anaerobic m/os
anerobic respiration using sulfate
fermentative m/os
anaerobic condtion
halotolerant
Water as Microbial Habitat
nutrient cycling
light
gases
