Yield of methane

What will be the yield of methane from algae? Will Yield of methane vary with species?
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Matter %
Methane, CH4 50–75
Carbon dioxide, CO2 2 5–50
Nitrogen, N2 0–10
Hydrogen, H2 0– 1
Hydrogen sulfide, H2S 0– 3
Oxygen, O2 0– 2