Program

Upwelling regions constitute about 1%of the world’s ocean surface, but account for over 50% of the fish-catch (FC) worldwide. Upwelling bringsnutrients to the euphotic layer; through photosynthesis it supports phytoplankton growth,sustainingefficient marine food web within a relatively small area that tends to make the upwelling region highly productive in harvestable fish.Such is often the case along the inshore edge ofa western boundary current where isotherms are up-liftedand frontal eddies and strong currents can interact with topography to excite upwelling.Here we show that FCoff northeastern Taiwancorrelates (r=0.67,p=0.001) with the offshore (more fish) and onshore (less fish) shifting of the Kuroshio, which in turn is correlated (r=0.73,p=0.002) with the oscillation of a windstress-curl dipole east of Philippine and Taiwan.