Light Spectrum Manipulation Enhances Growth and Survival in Early Juvenile Seabass (Lates calcarifer) | ||||
| Egyptian Journal of Aquatic Biology and Fisheries | ||||
| Article 108, Volume 29, Issue 4, July and August 2025, Page 1971-1986 PDF (520.5 K) | ||||
| DOI: 10.21608/ejabf.2025.444507 | ||||
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| Author | ||||
| Satiti et al. | ||||
| Abstract | ||||
| Seabass (Lates calcarifer) is a fish with high economic value and great demand in the community, making it a promising species for continued development. The seabass has diurnal habits, meaning it will be active during the day or when exposed to light. Environmental manipulation techniques can improve fish growth and survival by regulating light intensity. It is suspected that exposure to blue light can positively affect growth and survival and can optimize physiological responses compared to other colored light treatments. This research was conducted at the Fisheries and Marine Resources Exploitation Laboratory, Faculty of Fisheries and Marine Sciences, Brawijaya University, from January to February 2024. The method used was a Completely Randomized Design (CRD), with three different light color treatments: red, blue, and green. The observed parameters are Specific Growth Rate (SGR), Survival Rate (SR), and Water Quality. The results show that blue light treatment significantly affects the growth and survival of seabass juveniles. The highest Specific Growth Rate for weight was recorded at 29±0.09% and for length at 32±0.04%, with a survival rate of 100%. The administration of blue light treatment was found to support the physiological and feeding behavior of the fish optimally. Meanwhile, red and green light treatments showed lower performance in Specific Growth Rate of weight, with 22 ± 0.05% and 18 ± 0.15% respectively. For the Specific Growth Rate (SGR)of length, the red color treatment was 30 ± 0.07%, the green color was 22 ± 0.05%, and the survival rate (SR) for red light treatment was 93% and the green color was 80%. Based on these results, blue lighting is recommended as an environmental management strategy to improve the productivity of seabass juveniles in the early maintenance phase. | ||||
| Keywords | ||||
| Seabass; Growth; Survival rate; Lamp; Intensity | ||||
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