Pathogenic Bacteria in Corals from Veracruz Reef System National Park
Journal Title: International Journal of Modern Engineering Research (IJMER) - Year 2014, Vol 4, Issue 5
Abstract
The Veracruz Reef System National Park (PNSAV) is situated in front of Veracruz-Boca del Río and Antón Lizardo conurbation with approximately 65,516 hectares. In 1992 this reef system was declared a Natural Protected Area and in 2006 it became Biosphere reserve. Despite this recognition, the PNSAV is exposed to anthropogenic effects such as river discharge, port traffic, tourism, and waste discharges; all this causes sediment and bacteria, which affect corals. Studies conducted by PNSAV show the presence of diseases and syndromes in scleractinian corals but do not denote the causal agent of the disease. For this reason, the present study aimed to make the diagnosis of bacteria causing damages to the scleractinian coral and its relation to discharges from areas of influence of PNSAV. 12 fixed 80 meter transects were established and coral samples were collected from the genera: Colpophyllia, Montastraea, Porites and Siderastrea. The lesions identified as criteria for the collection were bands, marks and spots on the body of the coral. The sample was run in duplicate, both the affected and the visually healthy. A microbiological analysis of wastewater from point sources of pollution was performed. The coral and water samples were analyzed by simple PCR in laboratory of the Instituto Tecnológico de Boca del Río in Veracruz (ITBOCA). Primers of pathogenic bacteria include species of the genera Oscillatoria, Vibrio, Serratia y Aurantimonas. There was a positive presence of Vibrio bacteria with an 87% in the water samples and a 27.1% in coral tissue. The bacteria Serratia marcescens was only present in water samples and the Aurantimona coralicida in diseased coral tissue. It was also noted that there is a relationship in bacteria in the positive presence of 3-point sources of pollution and coral tissue.
Authors and Affiliations
García-Fuentes J. L1 , Galaviz-Villa I2 , Lango-Reynoso F3 , Castañeda-Chávez M. del R4
Keywords
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