Easy Identification Of Freshwater Algae ★ Deluxe & Easy

: Diatoms often feel gritty (like sand) because of their glass-like silica shells. Identification Resources

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

: These are large and "plant-like" but lack true roots and leaves. Easy identification of freshwater algae

: Sites like the NIWA Algae ID Guide and the Landcare Research Guide provide visual references for different habits.

For a more precise identification, you can use specialized tools: : Diatoms often feel gritty (like sand) because

: Typically Green Algae ( Chlorophyta ). They contain chlorophyll a and b .

First, look at how the algae is structured in the water. Most common types fall into these three categories: Note: Some like Nostoc form firm, jelly-like "freshwater

: For student projects, a dichotomous key helps identify algae by asking a series of "yes or no" questions about its features. Algae Corner: How to Identify Different Algae Types