CLIMATCH maps showing source (A and C) and target (B and D) regions for goldline snakehead Channa aurolineata (Day, 1870). Source map A shows that location data were used from peninsular Florida, the target region for climate matching and therefore maps A and B show an ad hoc analysis. Maps C and D show an a priori analysis because no source data from the target region are used. Source maps indicate climate stations in native or established locations in blue or red. Blue dots indicate that the climate station did not contribute to match in the target region. Red dots contributed to match and the size of the red point indicates the relative contribution. Target maps indicate climate stations with a color code indicating match. Similarity values ≥ 6 indicate suitable climate and Climate 6 scores are the proportion of climate stations in the target region with ≥ 6 similarity to the source region.