Metals and metalloids in freshwater fish from the floodplain of Tablas de Daimiel National Park, Spain

The Tablas de Daimiel National Park (TDNP) is a floodplain ecosystem in central Spain with potential risk of heavy metal and metalloid pollution. objective this study was to know the accumulation arsenic (As), cadmium (Cd), mercury (Hg), lead (Pb), selenium (Se) muscle six species freshwater fish from TDNP. We obtained samples Cyprinus carpio (n = 89); Squalius pyrenaicus 16); Ameiurus melas 9); Lepomis gibbosus 8); Micropterus salmoides 6) Carassius auratus 5). A. melas, which predatory species, had significantly higher Hg concentrations than omnivorous or herbivorous (i.e. C. carpio). On contrary, showed lower As, Pb Se S. L. ). concentration positively associated size melas. Some individuals (5.7%) (12.5%) above maximum residue levels established by European legislation for human consumers. observed can be adverse effects on such as blood changes, reduced growth, mortality juveniles reproductive failure. located seleniferous area contamination produced spent shot pellets used hunting past are discussed sources elevated these two elements wetland.