title: Embryotoxicity and hatchability in Cichlasoma nigrofasciatum (Guenther) eggs and larvae briefly exposed to low concentrations of zinc and copper ions.
mesh_terms: D000818:Animals; D003300:Copper / Q000633:toxicity*; D004531:Eggs; D004625:Embryo, Nonmammalian / Q000187:drug effects*; D005399:Fishes / Q000502:physiology*; D013997:Time Factors; D015032:Zinc / Q000633:toxicity*
chemical_list: D003300:Copper; D015032:Zinc