FIGURE LEGENDS
FIGURE 1: Geographic map showing the sampling sites of the Batillaria attramentaria snails used in the present study. Gray color represents continental area and white color represent oceanic areas. Black dots indicate sampling sites of the snails.
FIGURE 2: Generic Exposure Salinity-response functions of the movement distance of the B. attramentaria under the effects of (A) Origin, (B) Location, (C) Population, and (D) Lineage. Gradient blue color boxes represent the movement distance of the snails exposed to different salinities. The black and dash curves represent the statistically significant and insignificant difference between two means. The bottom and top of the box are the 25th, and 75th percentile of the movement distance, the dash lines in the box show the 50th percentile, and the ends of the whiskers represent the minimum and maximum estimates of the movement distance. Outliers are represented by black dots beyond the whiskers. Lower panel illustrates definition of ecological factors of (E) Origin, (F) Location, and (G) Lineage. Blue and red colors in E represent for native and introduced groups of snails. Curly arrows in F indicate daily salinity fluctuation from 0 to 33 PSU throughout the year. The phylogenetic tree in G was built based on mitochondrialCO1 gene sequences (286bp) applying the Maximum Likelihood method and HKY85+G+I substitution model. Vertical black and white bars represent for the two distinct lineages of Tsushima and Kuroshio, respectively.
FIGURE 3: Generic (A) Exposure Salinity, (B) Origin, (C) Location, (D) Population, (E) Lineage-response function of the movement distance of the B. attramentaria. The predicted variables-response derived from the LMM tests, specifying random intercept for subject, with N = 280 individuals split into groups of snails acclimating to different salinities of 13, 23, 33, and 43 PSU (A), from native and introduced ranges (B), coming from different locations (C) and population (D), and having different genetic composition (E). The bottom and top of the box are the 25th, and 75th percentile of the movement distance, the straight dash lines show the 50th percentile, and the ends of the whiskers represent the minimum and maximum estimates of the movement distance.Outliers are represented by black dots beyond the whiskers. The solid and dashed black curves represent the statistically significant and insignificant difference between two means, respectively.
FIGURE 4: Generic (A) Kuroshio lineage–response function of the movement distance of B. attramentaria and (B) Salinity Exposure–response functions of the movement distance of the Kuroshio B. attramentaria under the effects of Origin. Gradient blue colored boxes represent the movement distance of snails exposed to different salinities. The solid and dashed black curves represent statistically significant and insignificant differences between means, respectively. The bottom and top of the boxes are the 25th, and 75th percentiles, the dashed vertical lines show the 50th percentiles, and the ends of the whiskers represent the minimum and maximum estimates of the movement distance. Outliers are represented by black dots beyond the whiskers.