Browning lakes may be bad news for trout and bass—but could create a golden age for giant pike and walleye. Credit: Shutterstock The lakes, streams and ponds you’ve visited for years are likely looking more brown than they used to. And people who are fishing those waters are likely catching different species and sizes of fish than in the past. Our research has identified a link between those two developments , which means that trout, bass, perch and whitefish may become less common in unstocked