Jubilado de la Universidad de Oriente (UDO), Venezuela.

sediments sediment metals heavy metals gulf of cariaco water column carbon regeneration coastal upwelling cariaco basin especiacion sedimentos cod processes gulf of cariaco. upwelling hydrochemistry coastal zone. availability concentration of salts. proteins and fato pseulioplatystomajascia.twn. river orinoco speciation playa grande water quality marine contamination. cfa venezuela. estuarine zone surface water contamination golfo de paria biodisponibilidad fosforo ecuador. anadara sp contaminacion bioindicadores metales pesados rieles ríos tropicales bolivar state venezuela ambiental. venezuela edo. sucre bahía de mochima coastal lagoon organic matter la restinga cuchivero geochemistry environmental venezuelan rivers barco france brest españa costa atlántica venezolana golfo de paria. especiación de fósforo bioavailability. lagoon parámetros fisicoquímicos aguas superficiales río apure variaciones distribution orinoco river. reactive phase metal fractionating unare lagoon. sequential extraction sediment core análisis espectral contaminación costera corrientes. prot chod materia orgánica pcho carbohydrates tdcho mcho piritu coastal lagoons sediments. geochemistry study environmental conditions physical-chemical study especiación de metales pesados / río manzanares manzanares river. geochemical fractioning trace metals littoral lagoon sedimento metales rio orinoco. distribución gulf of paria venezuelan atlantic coast phosphorus speciation ecology gulf of cariaco. venezuela. phytoplankton. nutrients