Easy identification of freshwater algae

: Fresh blooms often smell like freshly mowed grass; older, decaying blooms may smell like rotting garbage.

: Likely Blue-Green Algae ( Cyanobacteria ). They contain phycocyanin. Note: Some like Nostoc form firm, jelly-like "freshwater grapes" attached to rocks.

Color provides a major clue about the pigments the algae uses for photosynthesis:

If you are observing algae in person, these simple characteristics can narrow it down:

Chara (skunkweed) grows from the bottom and often has a strong skunk or garlic-like smell. 2. Check the Color

Easy Identification Of Freshwater Algae (FREE – 2025)

: Fresh blooms often smell like freshly mowed grass; older, decaying blooms may smell like rotting garbage.

: Likely Blue-Green Algae ( Cyanobacteria ). They contain phycocyanin. Note: Some like Nostoc form firm, jelly-like "freshwater grapes" attached to rocks.

Color provides a major clue about the pigments the algae uses for photosynthesis:

If you are observing algae in person, these simple characteristics can narrow it down:

Chara (skunkweed) grows from the bottom and often has a strong skunk or garlic-like smell. 2. Check the Color