Preliminary Study on the Water Drag of Schlegel' s Black Rockfish Sebastes schlegeli

摘要

Drag forces acting on Schlegel's black rockfish Sebastes schlegeli were studied. A new drag force transducer was designed and used to measure the water drag on Schlegel's black rockfish in a vertical recirculating flume tank. Fourteen individuals were investigated, yielding two mean drag coefficients referred to the cross-sectional area and volume~(2/3) respectively at water velocities ranging from 0.3 to 1.0ms~(-1). The drag coefficients can be used for estimating the drag forces acting on Sebastes schlegeli in water.