In semi-intensive shrimp culture, the stocking density used is:

Correct option is B

Correct Answer: (b) 10–20 PL/m²
Explanation:
→ Semi-intensive shrimp culture typically stocks 10–20 post-larvae (PL) per m², balancing natural productivity with supplementary feeding and occasional aeration.
→ This density aims for good growth while limiting stress and disease risk.
Information Booster:
→ Intensive systems use much higher densities with continuous aeration and formulated feeds.
Additional Information (Other Options):
(a) Extensive; (c),(d) closer to intensive/super-intensive densities.