Levels of copper, zinc, manganese and iron in two fish species from salt marshes of Cadiz Bay (southwest Iberian Peninsula)

1. Arellano, J.M.
2. Ortiz, J.B.
3. Capeta Da Silva, D.
4. Gonzalez De Canales, M.L.
5. Sarasquete, C.
6. Blasco, J.