Open AccessBioprospection of Microalgae and Cyanobacteria as Biocontrol Agents Against Vibrio campbellii and Their Use in White Shrimp Litopenaeus vannamei Culture
Author(s) -
GonzálezDavis Oscar,
PonceRivas Elizabeth,
SánchezSaavedra M. Del Pilar,
MuñozMárquez MaríaEnriqueta,
Gerwick William H.
Publication year - 2012
Publication title -
journal of the world aquaculture society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.655
H-Index - 60
eISSN - 1749-7345
pISSN - 0893-8849
DOI - 10.1111/j.1749-7345.2012.00567.x
Subject(s) - shrimp , litopenaeus , biology , vibrio , brine shrimp , vibrio parahaemolyticus , penaeidae , white spot syndrome , penaeus , microbiology and biotechnology , botany , decapoda , fishery , crustacean , bacteria , genetics
Vibrio spp. are the most common and harmful shrimp pathogenic bacteria; however, microalgae and cyanobacteria have the ability to produce antimicrobial substances against these species. In this study, the organic and aqueous extracts of 28 species of marine microalgae and cyanobacteria were screened against Vibrio campbellii M1. Two of these phytoplankton species with antibacterial activity in aqueous extracts ( Dunaliella tertiolecta and Skeletonema costatum ) and nontoxic to brine shrimp Artemia franciscana nauplii were used to evaluate their anti‐ Vibrio effect when used as green‐water cultures in Vibrio ‐challenged white shrimp Litopenaeus vannamei cultures. No differences in mortality of juvenile L . vannamei were observed between treatments tested, suggesting that the pathogenicity of V . campbellii could be related to the growth stage of shrimp. The proximal composition of D . tertiolecta and S . costatum was in the recommended range for penaeid shrimp nutrition, allowing shrimp supplemented with these microalgae to have significantly greater total length and weight than control shrimp. Shrimp supplemented with S . costatum presented the highest values of organic mass (11.48 mg/organism) and growth rate (0.31 mg/d) in comparison to D . tertiolecta . These results indicate that microalgae are not only capable of producing antibacterial compounds against Vibrio but can also help shrimp nutrition.