Determination of plasma melatonin levels by enzyme-linked immunosorbent assay (EIA) in turbot (Scophtalmus maximus L.) and tench (Tinca tinca L.)

1. Rebollar, P.G.
2. Ubilla, E.
3. Peleteiro, J.B.
4. Agapito, M.T.
5. Alvariño, J.M.R.