Richard V. Dumilag, Ferdinand S. Dumago, Rea Kissel R. Cabudoy, Mark Christian E. Peralta, Camille C. Li, Glenn Cedrick V. Gamus, Rose Glendelyn T. Romero, Sandra L. Yap, Michael Y. Roleda, Paul John L. Geraldino, Heroen Verbruggen, Frederik Leliaert, Stefano G.A. Draisma, Lawrence M. Liao, Gerald T. Kraft
The marine algal flora of eastern Sorsogon has been intensively collected and is generally considered as the richest in the Philippines. A trend of species records in the area has been dominated by rhodophytes (red algae) with significantly fewer similar studies for other algal groups (green and brown algae). In this study we present an updated catalogue of the green seaweeds (Ulvophyceae) of eastern Sorsogon. A checklist, including notes on taxonomy, is given of the 103 species. Twenty-six species are newly recorded locally of which five represent new records for the Philippines: Avrainvillea amadelpha, Caulerpa buginensis, an unidentified Caulerpa species, Codium cf. latum, and one taxon new to science. The new species is described as Halimeda magnicuneata Verbruggen et Dumilag based on morpho-anatomy and DNA sequence data. The number of ulvophycean species recorded in eastern Sorsogon is found to be the highest in the Philippines. This may be a result of the high collection effort in the region, as well as eastern Sorsogon's diverse habitats providing favourable conditions for a wide range of seaweed species. © 2020 Walter de Gruyter GmbH, Berlin/Boston 2020.
Institute of Oceanography and Environmental Science, Mindanao State University, Tawi-Tawi College of Technology and Oceanography, Sanga-Sanga, Bongao, 7500, Philippines; Department of Biological Sciences, Institute of Arts and Sciences, Far Eastern University, Sampaloc Nicanor Reyes Sr. St., Manila, 1015, Philippines; Marine Science Institute, College of Science, University of the Philippines, Diliman, Quezon City, 1101, Philippines; Department of Biology, University of San Carlos, Cebu City, 6000, Philippines; School of Biosciences, University of Melbourne, Parkville, 3010, VIC, Australia; Meise Botanic Garden, Nieuwelaan 38, Meise, 1860, Belgium; Phycology Research Group, Biology Department, Ghent University, Krijgslaan 281-S8, Ghent, 9000, Belgium; Excellence Center for Biodiversity of Peninsular Thailand, Department of Biology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Graduate School of Integrated Sciences for Life, Hiroshima University, 1-4-4, Kagamiyama, Higashi-Hiroshima, 739-8528, Japan; Tasmanian Herbarium, College Road, Sandy Bay, Tasmania, 7005, Australia
