Estimasi Beban Pencemar Bahan Organik Benur Udang Vaname (Litopenaeus vannamei) di Hatchery PT. Summa Benur, Situbondo.

Abstract

Kualitas air merupakan faktor penting dalam keberhasilan pemeliharaan benur udang vaname (Litopenaeus vannamei) pada kegiatan hatchery. Penelitian ini bertujuan untuk menganalisis pengaruh perbedaan dosis pakan terhadap parameter kualitas air selama stadia Zoea-Mysis (ZM) hingga Post Larva 9 (PL-9). Perlakuan terdiri atas A1, A2, A3, dan A4 sebagai perlakuan dosis pakan berbeda serta A5 sebagai kontrol. Parameter yang diamati meliputi suhu, salinitas, pH, dissolved oxygen (DO), Total organic matter (TOM), amonia, nitrit, nitrat, alkalinitas, dan ortofosfat. Data dianalisis menggunakan analisis ragam (ANOVA). Hasil penelitian menunjukkan bahwa kualitas air masih berada pada kisaran optimal untuk pemeliharaan benur udang vaname. Nilai TOM berkisar antara 35,05-51,68 ppm, nitrit 0,29-0,33 mg/L, dan nitrat 0,068-0,077 mg/L. Hasil ANOVA menunjukkan bahwa perbedaan dosis pakan berpengaruh terhadap beberapa parameter kualitas air, terutama TOM, amonia, nitrit, dan nitrat. Peningkatan dosis pakan cenderung meningkatkan akumulasi bahan organik dan senyawa nitrogen pada media budidaya.

Water quality is an important factor in the successful rearing of Pacific white shrimp (Litopenaeus vannamei) post-larvae in hatchery activities. This study aimed to analyze the effect of different feeding doses on water quality parameters during the Zoea-Mysis (ZM) to Post Larva 9 (PL-9) stages. The treatments consisted of A1, A2, A3, and A4 as different feeding dose treatments, while A5 served as the control. The observed parameters included temperature, salinity, pH, dissolved oxygen (DO), Total organic matter (TOM), ammonia, nitrite, nitrate, alkalinity, and orthopHospHate. Data was analyzed using analysis of variance (ANOVA). The results showed that water quality parameters remained within the optimal range for rearing Pacific white shrimp post-larvae. TOM values ranged from 35.05-51.68 ppm, nitrite from 0.29-0.33 mg/L, and nitrate from 0.068-0.077 mg/L. ANOVA results indicated that differences in feeding doses affected several water quality parameters, particularly TOM, ammonia, nitrite, and nitrate. Higher feeding doses tended to increase the accumulation of organic matter and nitrogen compounds in the culture media.