Environment, Ecology, Fish, Environmental management, Heavy metals, Lead, Mercury, Copper, Cadmium, Zinc, Coastal environments, Agrochemicals, Atmospheric Protection/Air Quality Control/Air Pollution, Ecotoxicology, ploidy, Farms, Oysters, Bivalves, Gulf of California, Monitoring/Environmental Analysis, Metal pollution, Oyster culture, Terbium, Metal concent...