الفهرس 
The Egyptian Red Sea biodiversityOnly 14 pages are availabe for public view
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Abstract
This study aimed to investigate the incidence of bacterial infection in the Red Sea fish larvae which collected seasonally by light trap from coral reef in the marine site of the National Institute of Oceanography and Fisheries (NIOF) at Hurghada, Egypt from January to November (2018). Infection was examined microscopically, and the obtained isolates were identified by morphological and biochemical identification and appeared belonging to Vibrio spp. were identified as V. harveyi, V. parahaemolyticus, V. alginolyticus, V. vulnifacus, V. cholerae and unidentified Vibrio species. Further molecular characterization was concerned with identification of the former biochemically identified Vibrio species. Silver nanoparticles “AgNPs” were synthesized biochemically from the reduction of AgNO3 by leaves extract of mangrove (Avicennia marina) plants and their antibacterial activity against fish larvae pathogens were assayed. The green synthesized AgNPs were effective against all these pathogenic bacteria with an inhibition zone radius " ~ "13-20 mm.