Nava, Minelia Elena Ledezma de.2009-03-232009-03-2319801980Source: Masters Abstracts International, Volume: 40-07, page: .9780315007413http://hdl.handle.net/10393/8134http://dx.doi.org/10.20381/ruor-7152Biology, General.Petroleum effects on mixed function oxidases and cortisol balance in the North American eel, Anguilla rostrata.Thesis