What is it about?
Shrimp aquaculture, a rapidly growing food sector, faces significant challenges from bacterial diseases like vibriosis, caused by Vibrio bacteria, leading to high mortality. Our research explores a natural alternative to traditional treatments: extracts from marine macroalgae (seaweeds). We investigated methanolic extracts from Caulerpa sertularioides and Ulva lactuca to see if they could help Litopenaeus vannamei shrimp survive Vibrio infections. We found that the C. sertularioides extract effectively inhibited Vibrio parahaemolyticus and Vibrio alginolyticus growth. More importantly, shrimp treated with this extract showed significantly reduced mortality and an improved immune response, suggesting it can protect them from these devastating diseases.
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Photo by Fulvio Ciccolo on Unsplash
Why is it important?
This research offers a sustainable, natural solution to combat Vibrio diseases in shrimp farming, potentially reducing reliance on antibiotics and improving environmental sustainability and shrimp health.
Perspectives
Looking ahead, our findings open doors for developing novel, natural feed supplements or water treatments derived from Caulerpa sertularioides. Future studies should identify the specific active compounds responsible for the antibacterial and immune-boosting effects, and explore optimal long-term application methods to enhance shrimp health and production in a sustainable manner.
Dr. Anselmo Miranda-Baeza
Universidad Estatal de Sonora
Read the Original
This page is a summary of: Effects of methanolic macroalgae extracts from Caulerpa sertularioides and Ulva lactuca on Litopenaeus vannamei survival in the presence of Vibrio bacteria, Fish & Shellfish Immunology, April 2016, Elsevier,
DOI: 10.1016/j.fsi.2016.02.028.
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