. Effects of zebra mussels on chlorophyll, nitrogen, phosphorus and silica in north shore waters of Lake Erie . 12 76 78 80 82 84 86 88 90 92 94 Year 10 -I 8 6 -I 4 2 Union (spring) â¢A â \\'. \l -. -I -95% 76 78 80 82 84 86 88 90 92 94 Year

---

Size: 3274px × 1526px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookcollectiongovernmentpublications, bookleafn