Many species of fish, including sharks and Rastrelliger, Decapterus, Euthynnus and Caranx spp., can be used as the raw material for this product.    From Wordnik.com.  [Chapter 6] Reference

India’s southwest coast is fished for oil sardines (Sardinella longiceps), mackerels (Rostrelliger kanagurta), and tunas (Euthynnus affinis and Auxis thazard).    From Wordnik.com.  [Arabian Sea large marine ecosystem] Reference