Strategies for control of nitrogenated compound concentrations in the Penaeus paulensis BFT culture system

Author(s)

Franca-Silva, Esthefany Caroline ; Andrade, Suelen Aparecida Paula ; Trioni, Hothon ; Bertini, Giovana ; Bueno, Guilherme Wolff ; Gaona, Carlos Augusto Prata

• Document type: Journal article
• Source: NATIVA; v. 13, n. 1, p. 8-pg., 2025-01-01.

Abstract

The present study is of practical significance as it aimed to analyze nitrite reduction through two management strategies, potentially leading to a proposal for controlling this compound and improving water quality in the BFT system. The study focused on achieving an optimal organic carbon-to-alkalinity ratio and an optimal feed rate in the rearing of P. paulensis. Two experiments were conducted. While the study did not conclusively develop a tool for nitrite reduction by oxidizing nitrite bacteria, it did find that higher alkalinities promote the action of ammonia-oxidizing bacteria, creating a more conducive environment for biofloc development and improved water quality control. In a study aimed at determining the optimal feed rate, it was observed that higher feed reductions (30%) enhanced the activity of nitrite-oxidizing bacteria, thereby accelerating the nitrification process and potentially revolutionizing shrimp farming practices. (AU)

• FAPESP's process: 22/02756-4 - BLASp4: IoT platform for predicting bioeconomic carry capacity and ecosystem aquaculture services under different climate, zootechnical and financial scenarios of fish farms in neotropical environment
• Grantee: Guilherme Wolff Bueno
• Support Opportunities: Research Grants - Initial Project
• FAPESP's process: 19/07948-6 - Bioeconomic prediction model for climatic and financial risk analysis of aquaculture enterprises with high-producing in a hydroelectric reservoir
• Grantee: Guilherme Wolff Bueno
• Support Opportunities: Research Program on Global Climate Change - Regular Grants