Walleye struggle with changes to timing of spring thaw, researchers find
Relationship between walleye (Sander vitreus) spawning dates and ice-off dates across 194 Upper Midwestern lakes. Black points are observed data, thin gray lines are lake-specific trends, and colored lines and shaded areas are the global relationship and 95% credible interval (CI) from a hierarchical linear regression model. Dashed line represents a 1 : 1 relationship to demonstrate … Read more