ISSN 2094-2818

Editors: Eduardo A. Padlan and
Gisela P. Padilla-Concepcion
VOLUME 7 NUMBER 1 (January to June 2014)

Phil. Sci. Lett. 2014 7 (1) 45-54
available online:
February 9, 2014

*Corresponding author
Email Address:
Received: August 16, 2013
Revised: January 19, 2014
Accepted: January 20, 2014
Published: February 5, 2014
Editor-in-charge: Eduardo A. Padlan
Reviewers: Rey Donne S. Papa and
Irene E. Samonte-Padilla

Keywords: taxonomy, Mugilidae , morphology, mullets, morphomeristics, Cestraeus

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Taxonomic identification of “Ludong” fish from the Cagayan River (Philippines)

by Minerva Fatimae H. Ventolero1,3, Evelyn C. Ame2, Billy Joel N. Catacutan1, and Mudjekeewis D. Santos1*

1Genetic Fingerprinting Laboratory, Marine Fisheries Research Division, National Fisheries Research and Development Institute, 
  Quezon City, Philippines
2Fisheries Resources Management Division, Bureau of Fisheries and Aquatic Resources, Regional Fisheries Office No. II, 
  Tuguegarao City, Cagayan
3The Graduate School, University of Santo Tomas, Espaņa, Manila

"Ludong”, also known as the President’s fish, is a mullet fish belonging to the Mugilidae family that is indigenous to Cagayan River and its tributaries. Because of its rarity and apparent threatened status, it has been the subject of intense research, conservation and management. To date, its accurate taxonomic identification is unclear and only based on conflicting published reports. In this study, we established the identity of “Ludong” using morphological analysis and comparison with pictures of holotypes from the Museum National d’Histoire Naturelle collection-Paris and National Museum of Natural History of the Smithsonian Institution, USA. Results revealed that “Ludong” was confirmed to belong to the genus Cestraeus of the Mugilidae family. Furthermore, there were at least two species found in Cagayan River, namely Cestraeus oxyrhynchus and Cestraeus goldiei. These results established the identity of “Ludong” species which can now be used as baseline information for further studies and conservation.