Effects of zebra mussels on Effects of zebra mussels on chlorophyll, nitrogen, phosphorus and silica in north shore waters of Lake Erie effectsofzebramu00ontauoft Year: 1997 PostZM 1 2 3 4 5 6 7 8 9 10 11 12 Month £ c : - 0 : Dunnville-r <K PreZM Post ZM ,^, 1 2 3 4 5 6 7 8 9 10 11 12 Month : Dunnville 10 ^ 5 0 ^ -5 \ ^'^^â ^ui''''^^iT-i-t 1 2 3 4 5 6 7 8 9 10 11 12 Month Dunnville T 1 2 3 4 5 6 7 8 9 10 11 12 Month

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