The authors thank the owner and crew of the CACHACHO and CHANS ships for their participation in the present study, and the Vigo harbour fishing fleet in general for kindly providing us with the three fish species. The authors also thank Mr. Rodrigo García Castro for his technical assistance and Atlantic One S.L. (Vigo, Spain) for providing the commercial organic acid mixture BPS2. Mrs. Gabriela Medina is widely acknowledged for her valuable preliminary studies of applying the BPS2 product to fish. This work was supported by the Secretaría Xeral de IþD from the Xunta de Galicia (Galicia, Spain) through the Research Project PGIDIT 08TAL038E.