Temporal haplotype network of Vibrio fischeri strains from the same Euprymna tasmanica population (Botany Bay NSW, Australia) over 10 years (2000–2009) using the gapA locus. Two major haplotypes have dominated during this time: haplotype 17, which has the largest sample size (represented by the size of the circle) over the entire span (11 years) and haplotype 11 (second largest representative haplotype). Other related haplotypes (i.e., 2, 8, 10, 20) were found only in one year, and were never recovered during the course of this study. Haplotypes that genetically were not connected to the rest of the network (9, 14, 15, 16) were all from the initial collection time point (2000), and were never recovered in subsequent years (Soto 2009).