Effect of water motion on the cultivation of the commercial seaweed Undaria pinnatifida in a coastal bay of Galicia, Northwest Spain

摘要: Abstract Undaria pinnatifida is an edible brown seaweed, and its cultivation being considered in Northwest Spain. Water motion to be a key factor growth production of macroalgae; however, little known about their influence on the farming commercial seaweeds. In this study we investigated water effects U. coastal bay Galicia (Northwest Spain). Growth morphological features fronds biomass yield were compared between two locations with different degrees (moderately exposed site vs. sheltered site). rate, which was measured either as length weight changes fronds, significantly higher for moderately site. Fronds larger had more area blades. The highest obtained at Whether environmental conditions these responsible results explored. We suggest that hydrodynamic may main results, hydrodynamics can affect uptake nutrients carbon dioxide by reducing diffusion boundary layer around algal surface. According view, degree culture should when identifying optimal other kelps bays.