title: Accumulation and regulation effects from the metal mixture of Zn, Pb, and Cd in the tropical shrimp Penaeus vannamei.
abstract: Environmental metal pollution is one of the major problems faced by humankind. This type of pollution affects aquatic systems (estuaries, coastal lagoons, etc.), which are very dynamic systems, therefore making the study of the effects on the organisms that inhabit them an essential issue. In this study, the capacity of metal regulation by decapod crustacean Penaeus vannamei juveniles was determined. The effects of zinc, lead, and cadmium were tested individually and as a metal mixture exposure to determine possible synergism. The results showed that juvenile shrimps were capable of regulating zinc and lead, whereas cadmium was accumulated without any excretion, at least within the concentrations studied. It was also proved that under the estuarine conditions tested here, P. vannamei juveniles showed capacity to act as a bioindicator for cadmium.
authors.affiliation: Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Estación El Carmen, Ciudad del Carmen, Campeche, Mexico, 24157. nunezng@yahoo.com.mx
authors.forename: Gabriel
authors.initials: G
authors.lastname: Núñez-Nogueira
authors.forename: Laura
authors.initials: L
authors.lastname: Fernández-Bringas
authors.forename: Alfredo
authors.initials: A
authors.lastname: Ordiano-Flores
authors.forename: Alejandro
authors.initials: A
authors.lastname: Gómez-Ponce
authors.forename: Claudia Ponce
authors.initials: CP
authors.lastname: de León-Hill
authors.forename: Fernando
authors.initials: F
authors.lastname: González-Farías
mesh_terms: D000818:Animals; D015415:Biomarkers; D001822:Body Burden; D002104:Cadmium / Q000032:analysis / Q000493:pharmacokinetics* / Q000633:toxicity; D004357:Drug Synergism; D004781:Environmental Exposure / Q000009:adverse effects; D004784:Environmental Monitoring / Q000379:methods; D063366:Estuaries; D007854:Lead / Q000032:analysis / Q000493:pharmacokinetics* / Q000633:toxicity; D008657:Metabolic Clearance Rate; D008800:Mexico; D009994:Osmolar Concentration; D010140:Pacific Ocean; D033561:Penaeidae / Q000737:chemistry / Q000187:drug effects / Q000254:growth & development / Q000378:metabolism*; D013054:Spectrophotometry, Atomic; D013997:Time Factors; D014018:Tissue Distribution; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000493:pharmacokinetics* / Q000633:toxicity; D015032:Zinc / Q000032:analysis / Q000493:pharmacokinetics* / Q000633:toxicity
chemical_list: D015415:Biomarkers; D014874:Water Pollutants, Chemical; D002104:Cadmium; D007854:Lead; D015032:Zinc