Introduction: This research investigates new methods for controlling the growth of diatom algae (Bacillariophyta) in fish farming ponds. Fish farmers, particularly in Khuzestan, commonly use chlorine (Cl2) to combat water pollution and excessive algae growth, which is both costly and time-consuming and may harm fish health. The study aims to halt the growth of diatom algae using innovative techniques, eliminating the need to transfer fish to other ponds. This approach allows farmers to improve water quality without incurring high expenses for chlorine and without risking fish mortality. Additionally, the research examines the duration and effects of this new method, with plans to expand its implementation if successful. The ultimate goal is to create better conditions for fish farming by reducing costs and enhancing fish health.
Methods: In this study, Lactobacillus plantarum bacteria were introduced into carp breeding ponds in Khuzestan to inhibit the excessive growth of diatom algae. The method involved isolating and culturing L. plantarum, followed by adding it to the pond water at specific concentrations. Regular monitoring of water quality parameters, including pH, nutrient levels, and diatom density, was conducted over a defined period. The effectiveness of L. plantarum in controlling diatom growth was assessed by comparing treated ponds with control ponds that did not receive the bacteria. This approach aimed to enhance water quality and promote healthier conditions for carp without harmful chemicals.Our idea to cultivate this bacterium is to cultivate the material containing the bacteria (olive) in a medium suitable for the cultivation of acidic bacteria (milk).
Results: The application of Lactobacillus plantarum bacteria in carp breeding ponds in Khuzestan resulted in a significant reduction in diatom algae growth. Water quality assessments showed improved parameters, including lower nutrient levels and stabilized pH. Treated ponds exhibited healthier conditions for carp, with reduced mortality rates and enhanced growth performance compared to control ponds. The presence of L. plantarum effectively outcompeted diatom algae for resources, leading to a balanced aquatic ecosystem. Overall, this innovative approach demonstrated the potential of using beneficial bacteria to maintain water quality and promote sustainable fish farming practices without relying on harmful chemicals.
Conclusion: The use of Lactobacillus plantarum bacteria to prevent excessive growth of diatom algae in carp breeding ponds in Khuzestan has proven to be an effective and sustainable solution. This method not only reduced diatom populations but also improved overall water quality and fish health. By enhancing the aquatic ecosystem without the use of harmful chemicals, L. plantarum offers a viable alternative for fish farmers seeking to maintain optimal breeding conditions. The positive outcomes of this study highlight the potential for integrating beneficial microorganisms in aquaculture practices, promoting both environmental sustainability and economic viability in fish farming.
Keywords: 1. Lactobacillus plantarum
2. Diatom algae
3. Carp breeding
4. Aquaculture
5. Water quality