Data from: Strong, nonlinear selection against fluctuating asymmetry in wild populations of a marine fish

surfperch FA dataRaw data collected from images of kelp perch used to calculate FA. Namely, the number of fin rays counted on the left and right pectoral fins of each fish, organized by location (Palos Verdes Peninsula or Catalina Island), and by collection (initial or survivors). There are two sets of counts for each fish because the fin rays were counted by two independent observers (ARC and DRC).bootstrap estimates of corrected FAThis is the R code used to calculate FA (Left-Right) based on counted fin rays in right and left pectoral fins of all four samples (two from the Palos Verdes Peninsula: initial and survivors, and two from Catalina Island: initial and survivors). There are two independent counts and therefore two estimates of FA. The variance between these two estimates was used to correct for measurement error. The corrected FA estimate was then also corrected for the presence of directional asymmetry, and the samples were bootstrapped to give a statistically significant estimate of the relative size of FA between the two populations at the time of the two different sampling events.