| dc.description.abstract | Pendederan ikan nila sangat bergantung pada kualitas air, penurunannya dapat memicu stres, menghambat pertumbuhan, dan kematian. Penelitian ini bertujuan mengetahui pengaruh pemanfaatan eceng gondok dan kiambang sebagai fitoremediator terhadap kualitas air pada pendederan ikan nila serta menentukan dosis tanaman yang paling efektif. Penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan lima perlakuan dan tiga ulangan, yaitu kontrol (K), eceng gondok 4,5 g L?¹ (EG 4,5) dan 9 g L?¹ (EG 9), serta pentupan kiambang 50% (KB 50) dan 80% (KB 80). Hasil menunjukkan bahwa fitoremediasi secara signifikan meningkatkan kualitas air dibandingkan kontrol. Perlakuan EG 9 memberikan hasil terbaik dengan kadar TAN 0,31±0,01 mg L?¹, nitrit 0,13±0,01 mg L?¹, nitrat 1,44±0,09 mg L?¹, dan fosfat 0,31±0,00 mg L?¹. EG 9 menghasilkan LPBS 3,88±0,78%, PBM 6,39±2,04 g, RKP 0,93±0,30, dan kelangsungan hidup 88,89±3,85%. Penggunaan eceng gondok dosis 9 g L?¹ paling efektif mendukung kualitas air dan pertumbuhan ikan nila. | |
| dc.description.abstract | Nile tilapia nursery is highly depends on water quality; its decline can trigger stress, inhibit growth, and cause mortality. This study aimed to determine the effect of water hyacinth and giant salvinia as phytoremediators on water quality in tilapia nursery systems and to identify the most effective plant dosage. The study used a Completely Randomized Design (CRD) with five treatments and three replications: control (K), water hyacinth at 4.5 g L?¹ (EG 4.5) and 9 g L?¹ (EG 9), and giant salvinia coverage of 50% (KB 50) and 80% (KB 80). The results showed that phytoremediation significantly improved water quality compared to the control. The EG 9 treatment produced the best results with TAN at 0.31±0.01 mg L?¹, nitrite 0.13±0.01 mg L?¹, nitrate 1.44±0.09 mg L?¹, and phosphate 0.31±0.00 mg L?¹. EG 9 also resulted in a SGR of 3.88±0.78%, AWG of 6.39±2.04 g, FCR of 0.93±0.30, and a survival rate of 88.89±3.85%. The use of water hyacinth at 9 g L?¹ was the most effective treatment for improving water quality and supporting tilapia growth. | |
