. Effects of zebra mussels on chlorophyll, nitrogen, phosphorus and silica in north shore waters of Lake Erie . 76 78 80 82 84 86 88 90 92 94 Year z I 0-* z I Ounnville (summer) â J\' ⢠â¢â¢ â¢â /â â¢'- â¢'â â¢â¢A/â¢.â¢â . :\! ⢠\^ 76 78 80 82 84 86 88 90 92 94 Year

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Keywords: ., bookcentury1900, bookcollectiongovernmentpubli, bookleafnumber39