About the Cover

Highlighted on the cover of this special issue are featured species representing a diverse array of marine botanical species collected from various coastal sites across the Philippines. These include [a] Bangia cf. fuscopurpurea from Ilocos Norte (Burgos), [b] Anadyomene plicata from Pangasinan (Patar, Bolinao), [c] Halimeda cylindracea from Cagayan, [d] Gymnodinium catenatum from Zambales (Masinloc Bay), [e] Sargassum bataanense from Bataan (Sitio Saay, Limay), [f] Sargassum aquifolium from Quezon (General Nakar), [g] Chaetomorpha vieillardii from Oriental Mindoro (Puerto Galera), [h] Gelidiella acerosa from Marinduque (Boac), [i] Beckerella scalaramosa from Sorsogon (Bulusan), [j] Ceriops tagal from Aklan (Naisud, Ibajay), [k] Halimeda macroloba from Cebu (Silot Bay), [l] Tripos furca from Samar (Irong-Irong Bay), [m] Pyrodinium bahamense from Western Samar (Irong-Irong Bay), [n] Portieria hornemanii from Eastern Samar (Homonhon Island), and [o] Halodule uninervis and Thalassia hemprichii from Davao Oriental (Mati City). The original images were duly provided by the authors at the request of the PJS Editorial Office.

Editorial Board
About This Special Issue
Caesar A. Saloma
Guest Editors’ Foreword
Put O. Ang Jr. and Marco Nemesio Montaño
National Scientist Gavino C. Trono Jr.
Put O. Ang Jr. and Marco Nemesio Montaño

REGULAR ARTICLES

[PERSPECTIVE ARTICLE]
The Gregorio T. Velasquez Phycological Herbarium (MSI): a Legacy and National Heritage
Edna T. Ganzon-Fortes and Wilfred John E. Santiañez
Chemical Composition and Bioactive Properties of 𝘚𝘢𝘳𝘨𝘢𝘴𝘴𝘶𝘮 𝘢𝘲𝘶𝘪𝘧𝘰𝘭𝘪𝘶𝘮 (Turner) C. Agardh and Its Potential for Pharmaceutical Application
Eldrin DLR. Arguelles and Arsenia B. Sapin
α-Glucosidase Inhibitors from the Bark Extract of Ethno-antidiabetic 𝘊𝘦𝘳𝘪𝘰𝘱𝘴 𝘵𝘢𝘨𝘢𝘭 (Perr.) C.B. Rob
Bernard S. Canusa, Ivan L. Lawag, Oliver B. Villaflores, Vitthal D. Wagh, Michal Korinek, Yi-Hong Tsai, Fang-Rong Chang, and Ma. Alicia M. Aguinaldo
Molecular Phylogeny of Three Unarmored Dinoflagellates from Masinloc Bay, Zambales, Central Luzonwith a Description of the Morphology of 𝘎𝘺𝘮𝘯𝘰𝘥𝘪𝘯𝘪𝘶𝘮 𝘤𝘢𝘵𝘦𝘯𝘢𝘵𝘶𝘮 H.W.Graham
Garry A. Benico and Rhodora V. Azanza
[RESEARCH NOTE]
Use and Distribution of 𝘉𝘢𝘯𝘨𝘪𝘢 cf. 𝘧𝘶𝘴𝘤𝘰𝘱𝘶𝘳𝘱𝘶𝘳𝘦𝘢 (Bangiales, Rhodophyta) in the Northern Philippines

Glenn Cedrick V. Gamus, Richard V. Dumilag, and Sandra L. Yap
Residence Time Models and 𝘗𝘺𝘳𝘰𝘥𝘪𝘯𝘪𝘶𝘮 Blooms in Matarinao and Murcielagos Bays
Sanny David P. Lumayno, Garry A. Benico, Aletta T. Yñiguez, Irene D. Alabia, Ian Quino D.G. Fernandez, Rex Delsar B. Dianala, Rhodora V. Azanza, and Cesar L. Villanoy
Early Studies of Marine Microalgae in the Philippines
Milagrosa R. Martinez-Goss
Growth and Carrageenan Quality of Sporophyte and Gametophyte of the Commercially Important Red Seaweed 𝘒𝘢𝘱𝘱𝘢𝘱𝘩𝘺𝘤𝘶𝘴 𝘢𝘭𝘷𝘢𝘳𝘦𝘻𝘪𝘪
Maria Rovilla J. Luhan, Jonalyn P. Mateo, and Hananiah Sollesta-Pitogo
Macrophyte Diversity and Conservation Values of the Verde Island Passage, Philippines
Najeen Arabelle M. Rula, Khay Ann J. Ramos-Danila, Jovy Ann Patchicoy Valera, John Matthew H. Arcega, and Jayvee Ablaña Saco
Marine Benthic Algal Composition after 45 Years in an Urbanized Bay in Cebu, Philippines
Dan Anthony U. Bataan, Paul John L. Geraldino, Judith R. Silapan, and Lawrence M. Liao
Community Structure of Periphytic Diatoms in Early-stage Marine Biofilms in a Mariculture-impacted Area
Jerwin G. Baure, Maria Lourdes San Diego-McGlone, and Marie Antonette Juinio-Meñez
Tracking Iodine Decrease in Commercially Sold 𝘊𝘢𝘶𝘭𝘦𝘳𝘱𝘢 𝘳𝘢𝘤𝘦𝘮𝘰𝘴𝘢 (Forsskål) J. Agardh during Storage
Kathleen Amor R. Berones and Leni G. Yap-Dejeto
Seagrass Factor in Climate Change Mitigation in the Philippines
Miguel D. Fortes
Linking Thallus Morphology with P-I Curves of 50 Macrobenthic Algae from Bolinao, Pangasinan, Philippines
Jayvee Ablaña Saco and Edna T. Ganzon-Fortes
Marine Benthic Algae Assessment in the Eastern Samar Islands (Homonhon, Sulu-an, and Manicani), Philippines
Jhaydee Ann F. Pascual, Ken Joseph Clemente, Raul Angeles Jr., Luisito T. Evangelista, and Lawrence M. Liao
Phytoplankton Composition during a Period of the Red Tide Bans in 2017 in Irong-Irong Bay, Western Samar, Philippines
Fatima Mae P. Folio and Leni Yap-Dejeto
Phylogenetic Study of Sargassum polycystum (Sargassaceae, Ochrophyta) in Eastern Samar, Philippines Based on the Nuclear rDNA Sequences
Richard V. Dumilag, Leni G. Yap-Dejeto, Melodina Fabillo, and Marilou Sison-Mangus
Diversity of Coastal Phytoplankton in Balayan Bay, Batangas, Philippines
Luisito T. Evangelista, Jhaydee Ann F. Pascual, and Milagrosa R. Martinez-Goss