Genus Name: Staurosira
Genus Name: Cyclotella
Habitat: Episammic (live on sand) in
Habitat: Planktonic
shallow near-shore areas
Optimal Growth conditions: low nutrients,
Optimal Growth conditions: Sand as
clear water
habitat, clear water, sufficient nutrients
Limiting factors: Eutrophication, nutrients,
Limiting factors: Eutrophication, light,
competition with other species
nutrients
Genus Name: Navicula
Genus Name: Cocconeis
Habitat: Benthic, freely move on rocks and
Habitat: Benthic, epiphytic (live on plants)
plants
Optimal Growth conditions: clear water for
Optimal Growth conditions: clear water for
photosynthesis, sufficient nutrients
photosynthesis, sufficient nutrients
Limiting factors: lack of light (to
Limiting factors: lack of light (to
photosynthesize) due to overgrowth of
photosynthesize) due to overgrowth of
other plant material in water, habitat loss,
other plant material in water, nutrients
nutrients
Genus Name: Aulacoseira
Habitat: Planktonic, form long chains
Optimal Growth conditions: lots of
Genus Name: Cymbella
nutrients, not sensitive to stress,
Habitat: Benthic, free-moving or attached
eutrophic conditions
on rocks and other surfaces
Limiting factors: nutrients (phosphorus,
Optimal Growth conditions: clear water
silica)
Limiting factors: lack of light (to
photosynthesize) due to overgrowth of
Name: Fragilaria crotonensis
Habitat: planktonic, form long chains
Optimal Growth conditions: lots of
nutrients; grow well in eutrophic
conditions
Limiting factors: nutrients (phosphorus)