Abundance and shell length of marsh periwinkle and burrow diameter of marsh fiddler crabs with Reference, Moderate, and Heavy DWH Oiling, Barataria Bay, 2012-2014

This dataset contains data concerning the survey of marsh periwinkles (Littoraria irrorata) and various species of marsh fiddler crabs (Uca spp.). These data were collected seasonally Fall 2012 through Fall 2014, with 7 total sampling events represented in the dataset.