Portillo, R. J. R. (BusinessWorld Publishing Corporation, 2013-03-07)
The Government is developing a culture technology for commercial production of a fast-maturing species of oyster, known locally as tikod amo. "The Surigao Del Sur State University (SDSSU) and the Bureau of Agricultural Research (BAR) have been working on the culture technology of tikod amo," BAR said in a recent statement. Belonging to genus Spondylus, tikod amo sold to hotels and restaurants fetch ₱350-₱400 per kilogram.