Effects of zebra mussels on chlorophyll, nitrogen, phosphorus and silica in north shore waters of Lake Erie effectsofzebramu00ontauoft Year: 1997 /FRP TKN Ammonium Nttrats Nitrite* Org N/lnoro N NH4/(N03+NO^ Organic N Inorganic N N/P Winter Silicate Total P FRP TP/FRP TKN Amrtwnium* Nitrata Nitrite Org N / Inorg N NH4/(N03+N02)'7r Organic N Inorganic N N/P Spring TKN Ammonium* Nitrate Nitrite* Org N/Inorg N NHA/CNOg+NOj)* Organic N Inorganic N Summer

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