TY - JOUR AU - Arguelles, Eldrin De Los Reyes AU - Monsalud, Rosario Gionson PY - 2021/12/01 Y2 - 2024/03/29 TI - TAXONOMY AND SPECIES COMPOSITION OF EPIPHYTIC ALGAE IN STA. CRUZ RIVER, LAGUNA (PHILIPPINES) JF - Journal of microbiology, biotechnology and food sciences JA - J microb biotech food sci VL - 11 IS - 3 SE - Microbiology DO - 10.15414/jmbfs.2039 UR - https://office2.jmbfs.org/index.php/JMBFS/article/view/2039 SP - e2039 AB - <p>Algal epiphytes attached on three dominant aquatic macrophytes (<em>Pistia striatotes, Eichhornia crassipes </em>and<em> Ipomoea aquatic</em>) were investigated as part of a preliminary study on the ecological assessment of Sta. Cruz River, which has been used primarily for agriculture and fishery. In total, 22 algal taxa were identified on the studied macrophytes: 8 Chlorophyta, 4 Cyanobacteria, 7 Bacillariophyta, and 3 Euglenophyta. The taxa in this paper represent 8 classes, 16 orders, 20 families, 22 genera and 22 species based on the latest algal taxonomical nomenclature. Among these taxa, the existence of a rare filamentous cyanobacteria, <em>Planktothrix compressa </em>(Utermöhl) Anagnostidis et Komárek is described for the first time in the Philippines. A species of diatom is also reported in this study for the first time based on recent algal taxonomic nomenclature and this is <em>Ulnaria ulna </em>(Nitzsch) Compère that is based on the former name of <em>Synedra ulna</em> (Nitzsch) Ehrenberg. These taxonomic records proved that aquatic macrophytes represents a unique habitat for novel and diverse types of algal flora, which demands further investigations in the country.</p> ER -