Sandy beach macroinvertebrates of the Yucatán coast, Mexico

This dataset includes the mean abundance of macroinvertebrates of six coastal localities from the Yucatán coast: El Cuyo (21°31'N - 87°40'W), Dzilam (21°23'N - 88°54'W), Telchac (21°20'N - 89°17'W), Progreso (21°17'N - 89°39'W), Sisal (20°10'N - 90°01'W), and Celestún (20°51'N - 90°24'W) surveyed during November 2020, April 2021, and August 2021. At each locality, four sampling sites were selected.

The macrobenthic fauna was collected with a core of 22 cm in diameter, which was inserted between 20 and 25 cm inside the sediment. Six replicated samples in the intertidal and six in the lower supralittoral zones were collected at each beach site. Each sample was sieved using a 0.5 mm mesh and stored in plastic bags with 4% saline formalin. In the laboratory, organisms were separated and classified to the lowest taxonomic level or morphospecies.