Journal of Fisheries

Journal of Fisheries

The Efficacy of Nanochlropsis oculata to Removal of Nitrate and Phosphate from Shrimp Farm Effluent Estimation of Biomass and Lipid Content

Document Type : Research Paper

Authors
Aria Vazirzadeh 1
Dariush Amiri 2
1 Department of Natural Resources and Environmental Engineering, School of Agriculture, Shiraz University, Shiraz 71441-65186, Iran. Email: amiri.dariush2010@gmail.com
2 Department of Natural Resources and Environmental Engineering, School of Agriculture, Shiraz University, Shiraz 71441-65186, Iran
10.22059/jfisheries.2026.108947
Abstract
The effects of photoperiod (0, 8, 16, 24 hours of light) and culture period (day) on the biomass, fat production rate and removal of nitrate and phosphate from white leg shrimp (Litopenaeus vannamei) farm effluent was evaluated in Nanochlorpsis oculata. The response surface methodology based on the central composite design was used to analyze the effects of the input variables on the response variables. The analysis of variance regression of model was used to evaluate the significance of results. The obtained results indicated that the best main variable levels are about 17 hours of exposure per day (photoperiod) and 12 days culture period which led to the highest fat production percentage (25%), biomass of 0.135 mg/liter, and nitrate and phosphate removal efficiency with about 40 and 68 percent, respectively.
Keywords
Nanochlorpsis oculate
Growth
Fat
Removal of Nitrate and Phosphate.
Journal of Fisheries
Volume 79, Issue 3 - Serial Number 1
صفحه اصلی
Summer 2026
Pages 175-190