[5][6] According to the BFAR, this fish is habituating in the deep pools of Addalem River in Aglipay, Quirino, and rapids of Didimpit in Lacab, Jones, Isabela.

In fact, information gathered from fish vendors in Cagayan showed that the volume of ludong catch has been tremendously decreasing annually.

Specifically, FAO 31 prohibits the capture, purchase, sale, preparation, and serving of ludong for private or public consumption during its seasonal migration (October to January).

At the moment, the only live ludong in captivity is at BFAR research center in Bonuan Binloc in Dagupan City caught five years ago in the Cagayan River in Aparri town.

Moreover, the live ludong in captivity was recently joined in by 40 fingerlings of fish which are being cultured at BFAR, undergoing further morphological identification.

The live ludong was donated in 2001 and the fingerlings in January 2006 by Dr. Lino Edralim Lim for further studies on their physical traits and DNA fingerprinting.