Assessing size at sexual maturity and fine-scale population structure in a direct developing whelk (Buccinum undatum) in Southern Newfoundland, Canada

R script file used to filter genotype data, estimate L50, and analyze patterns of population structure of Buccinum undatum in Southern Newfoundland, Canada. Also included are the following files required to run the script: populationsNWA.snps.vcf - Northwest Atlantic group output at the conclusion of the Stacks de novo pipelinepop_map_NWA.txt - Population map for the Northwest Atlantic groupgenlightNWAFullFilt.rds - Filtered genotype data for the Northwest Atlantic grouppopulations3Ps.snps.vcf - 3Ps group output at the conclusion of the Stacks de novo pipeline pop_map_3Ps.txt - Population map for the 3Ps groupgenlight3PsFullFilt.rds - Filtered genotype data for the 3Ps groupmaturity_data.csv - Data set containing, shell length, sex, and maturity status for samples.sample_site_coordinates_3Ps.csv - Data set containing coordinates of 3Ps sample sites