Macaronesia, Portugal, Madeira, Geologic Sediments - microbiology, Atlantic Islands, Bathing Beaches, Water Microbiology, Bacteria - classification, Bacteria - isolation \& purification, Fungi - classification, Fungi - isolation \& purification, Geologic Sediments - analysis, Water Quality, Macaronésia, Macaronésia, Macaronésia, Macaronésia, Macaronésia, Mac...