Figure 6.

Representation of linear regression models with the histological gill score (HGS) on Farm B. (a) Linear model 3 (LM3) and linear model 4 (LM4), note the strong association between season and HGS, the points show raw data; small grey points show the raw HGS data, while large red points with error bars show predictions from models and 95% CI. (b) Linear model 5, when temperature was used instead of season, the increase of temperature was significantly (p < 0.05) associated with increased HGSs. Line and shaded area show predicted HGS and 95% CI.