Water Microbiology and public health Flashcards
Where can freshwater be sourced
3 general charcateristics of freshwater environemnts
How does an aquifier form
Describe rivers as a freshwater environment
List some things that can pollute rivers
What is stratificaiton of lakes
What are the 3 factors required for statification to occur in a lake
Name the layers of a stratified lake
Epilminion layer
Hypoliminon layer
Metalimnion layer
How does statification lead to different microbes in the different levels of the lake
Leibigs law of the minimum
Shelfords law of tolerance
What is eutrophication
How does eutrophication change the water envrionment and micorbes in it
Why is eutrophication a bigger problem in lakes than rivers
List the adaptations microbes have that allow them to live in aquatic freshwater envrionments
- small cells
- sheathed bacteria
- pigment production
- motility
- magnetotactic bacteria
- use nutrience at low conc.
List the 7 features of the marine environment
O2 conc of marine environment
Salt content of marine environmet
hydrostatic pressure in marine environment
Sunlight penentration in marine environment
Temperature in marine environment
pH in marine envrionment
Nutrients in marine environmet
Halotolerant vs halophillic
Piezotolerant vs piezophillic
Additional adaptations marine micorbes have that helps the survive in the harsh ocean conditions
List 3 examples of how micorbes have adapted to have symbiotic mutualistic relationships in the marine environmnet
Describe what its like near a hydrothermal vent
Symbiotic relationship between tubeworm and bacteria
Symbiotic relationship between luminecent bacteria and angler fish
Light emmiting reaction