22
In recirculating aquaculture systems (RAS), a daily partial water exchange is necessary to control ——————-—-
EXPLANATION
Recirculating Aquaculture Systems & Filtratio
- Nitrate Accumulation in RAS:
- In closed Recirculating Aquaculture Systems (RAS), aerobic nitrifying biofilters continuously convert toxic ammonia to nitrite, and nitrite to nitrate ($NO_3^-$).
- Because most commercial RAS lack anaerobic denitrification units, non-toxic nitrate slowly accumulates over time ($\gt 100-200\text{ mg/L}$).
- daily partial water exchange ($5\% - 10\%$) is standardly performed to flush out and control systemic nitrate buildup.
- Correct Option: Option 1 (Nitrate).
Explanation not matching this question?
क्या व्याख्या इस प्रश्न से मेल नहीं खा रही?
Report
Want to practice this paper in exam conditions?
क्या आप परीक्षा जैसे माहौल में अभ्यास करना चाहते हैं?
Test yourself in 5-question batch format with timer and hidden answers.
5-प्रश्नों के बैच फॉर्मैट, टाइमर और छिपे उत्तरों के साथ खुद को परखें।
Start Practice Mode →
प्रैक्टिस टेस्ट मोड शुरू करें →