Influence of suspended aquaculture on hydrodynamics and nutrient supply in the coastal Yellow Sea

Effects of aquaculture on hydrodynamics and associated nutrient supply in a typical area the coastal Yellow Sea are investigated with high-resolution model experiments situ data. The results show significant reduction supply, which is alternations three hydrodynamic conditions: onshore current across outer-boundary area, upwelling within offshore (depth >10 m) water exchange near-coastal <10 area. First, bottom layer boundary, transports high-concentration nutrients from major source water, significantly weakened by suspended aquaculture. As result, sources reduced 50%−60%. Second, velocities 2–6 × 10−3 cm/s, leads to an approximately 25% euphotic layer. Third, remains unchanged because currents layers (0–4 compensated enhanced lower layers. does not change, whereas has been 60%.