Progress in isolation and evaluation of new, probiotic bacteria foruse in shellfish hatcheries

摘要

Hatchery production of shellfish seed is necessary to supplement natural recruitment which is constrained by various stresses including habitat loss, pollutant contamination, overfishing, and climate fluctuations. Bacterial diseases are considered to be a major cause of mortality in shellfish larviculture and hatcheries, however, over-use of antimicrobials can result in development of resistant strains of bacterial pathogens. The use of probiotics for disease prevention and improved nutrition in aquaculture is becoming increasingly popular as the demand for environmentally-friendly aquaculture grows. This study, therefore, has the objectives to isolate and evaluate efficacy of new probiotic bacteria and microalgae for use in shellfish hatcheries.