The present work was carried out in the lacustrine basin of Metztitlan, Hgo., three sampling of recent sediments were realized in November (2001), April and July (2002) and the organisms of the genus Oreochromis sp were evaluated in April and July (2002). The analyses did following the methodology proposed by...
The purpose of this study was to identify the species Trididemnum spp. as well as determining the coral species covered by this tunicate, in coral reefs of the Arrecifes de Cozumel National Park (PNAC). Three samplings were carried out, October (2018), November (2018) and July (2019), where the temporal variation...
The Mesoamerican Barrier Reef System (SAM) is the second largest in the world. Coral reefs, among the world's most productive and biologically diverse ecosystems, are characterized by their high rate of primary productivity, with benthic producers, microalgae, and macroalgae being the main contributors. Macroalgae, in addition, play a role in...
Se estudió la degradación en lote de metacrilatos (metil, etil y butil metacrilato) y ácido metacrílico y la toxicidad de estos compuestos en condiciones anaerobias utilizando lodo proveniente de una planta de malteo, así como el efecto de los intermediarios generados por la hidrólisis de los ésteres sobre la velocidad...
In the present study, water quality and the concentration of polycyclic aromatic hydrocarbons (PAHs) in sediments of reef ecosystems from Mahahual to Xahuayxol Ensenada, and in the coastal lagoon Santa Rosa, Quintana Roo, Mexico in two tourist season, to propose a Water Quality Index Marine and necessary mitigation measures to...
In the present study a determination of polycyclic aromatic hydrocarbons (PAH’s) in sediments and molluscs (Crassostrea virginica, C. rhizophorae and Brachidontes exustus) was made from La Grande-La Chica lagoon system, Veracruz State, Mexico by gas chromatography with capillary column and its correlation with organic carbon content (OC) and texture of...
Se evaluó la concentración de Hidrocarburos Aromáticos Policíclicos (HAP) prioritarios en sedimentos de la Laguna de Términos en tres épocas climáticas: nortes (noviembre de 2008), secas (marzo de 2009) y lluvias (octubre de 2009). Los sedimentos fueron procesados siguiendo el método propuesto por la (UNEP/IOC/IAEA (1992) y analizados por medio...
The coastal lagoons are characterized by the mixture of fresh and salty water, causing these systems to be extremely dynamic, thus generating a very particular ecological behavior. The bacteria present in the sediments of this ecosystems have a critical role in its functioning, such as the recycling of organic matter,...