Philippine Journal of Science
152 (5): 1653-1676, October 2023
ISSN 0031 – 7683
Date Received: 23 Feb 2023
Gomphonema Species (Bacillariophyceae)
from Marikina River, Rizal (Luzon), Philippines
Milagrosa R. Martinez-Goss1*, Taisuke Ohtsuka2, Harue Inoue2,
Eldrin DLR. Arguelles3, Tohru Ikeya4,5, Elfritzson M. Peralta6,
Rey Donne S. Papa6, and Noboru Okuda4,7
1Institute of Biological Sciences, College of Arts and Sciences, and Museum of Natural History,
University of the Philippines Los Baños, College, Laguna 4031 Philippines
2Lake Biwa Museum, 1091 Oroshimocho, Kusatsu City, Shiga 525-001 Japan
3Philippine National Collection of Microorganisms,
National Institute of Molecular Biology and Biotechnology,
University of the Philippines Los Baños, College, Laguna 4031 Philippines
4Research Institute for Humanity and Nature,
Motoyama, Kamigamo, Kita-Ku, Kyoto 603-847 Japan
5Center for Ecological Research, Kyoto University,
Hirano 2–509–3 Otsu, Shiga 520-2113 Japan
6Department of Biological Sciences, College of Science, The Graduate School, and
Research Center for the Natural and Applied Sciences, University of Santo Tomas,
España Blvd., Manila 1015 Philippines
7Research Center for Inland Seas, Kobe University,
Rokkodai-cho, Nada-ku, Kobe 657-8501 Japan
*Corresponding author: mmartinezgoss@gmail.com
[Download]
Martinez-Goss M et al. 2023. Gomphonema Species (Bacillariophyceae) from
Marikina River, Rizal (Luzon), Philippines. Philipp J Sci 152(5): 1653–1676.
https://doi.org/10.56899/152.05.11
ABSTRACT
A floristic study of the diatoms (Bacillariophyceae) along the Marikina River in the eastern part of Metro Manila, Philippines, recorded at least 140 species belonging to 39 genera. Of these genera, one of the greatest number of species was observed in the genus Gomphonema (18 species). These species were identified and described under the bright field light microscope. Some species were further observed under the scanning electron microscope. A habitat description of the occurrence of the Gomphonema species is given. Twelve (12) out of the 18 species are new records for the country: G. brasiliense subsp. pacificum Moser, Lange-Bertalot & Metzeltin, G. chinense Liu & Kociolek, G. contraturris Lange-Bertalot & E.Reichardt, G. cuneolus E.Reichardt, G. exilissimum (Grunow) Lange-Bertalot & E.Reichardt, G. insigniforme E.Reichardt & Lange-Bertalot, G. javanicum Hustedt, G. kobayasii Kociolek & J.C.Kingston, G. pseudosphaerophorum H. Kobayasi, G. sundaense E.Reichardt, G. cf. qingyiensis L-X Zhang, P. Yu & Q-M You, and G. vibrio var. bohemicum (Reichelt & Fricke) R. Ross. Hence, this paper reports a total of 44 species of Gomphonema from the Philippines, including previous studies from 1937 to date.