Evaluate the Biomass of Fenneropenaeus chinensis from the Southern Coast of Shandong Peninsula Using eDNA

Fenneropenaeus chinensis is an important economic species in the north of China, and plays role both marine fishing aquaculture. Long-term overfishing has led to rapid decline wild F. resources. The traditional trawl survey could not meet demands resource survey. In this study, environmental DNA (eDNA) technology was used evaluate biomass Qinghai (Qingdao Haiyang) ground southern sea area Shandong Peninsula, with purpose verifying whether eDNA can provide a new assessment method for fisheries such as chinensis. quantitative results Qingdao water samples ranged from 1972 copies/L 6937 copies/L, average 4366 ±1691 copies/L. Those Haiyang 4795 8715 6737 ± 1348 concentration shrimp culture ponds 1.14 × 106 7.61 3.33 2.28 amount released by each gram per 24 h about 2.91 copies. According calculation, it estimated that distribution one every 300 m2 area. Similarly, distributed 240 result study confirms feasibility using shrimps.