ORGANIC COMPOUND RESIDUES THAT PERSIST IN SHRIMP AND SEDIMENTS IN THE COAST AND BAY OF CAMPECHE, MÉXICO

Abstract

The capture of shrimp, resource that generates important currency, has been in frank descent. One of the possible causes is the presence of pollutants. Persistent organic pollutants (POPs) such as DDT insecticide, and the aroclors or polychlorinated biphenyls (PCBs) have long-term effects on the reproduction of many organisms. In this contribution, the results from studies regarding the presence of POPs in three types of shrimp from Campeche are exposed. The results indicate that white shrimp (L. setiferus) from the Lagoon of Términos presents average concentrations of 0.0042 ng g^-1 of E-DDT, pink shrimp (F. duorarum) from the Bay of Campeche have average concentrations of 33.6 ng g^-1 of E-DDT, and in the seabobshrimp (X. kroyeri) from the western zone of the Lagoon of Términos there were average concentrations of 2.74 ng g^-1 of E-DDT. With relation to other studies, the concentrations of EDDT in shrimps have not decreased substantially; however, the highest ones correspond to degradation products DDE and DDD, indicating that the use of DDT has decreased and, due to the characteristics of these pollutants, it is quite likely that the residues of these compounds come from different sources, including atmospheric ones.