World Fishing Grounds and Oceanic Conditions

The most important fishing grounds are located where warm and cold oceanic currents meet. Examples include the Grand Banks of Newfoundland (where the Gulf Stream meets the Labrador Current), the North Sea, and the waters off Peru (Humboldt Current system). These areas support rich fish stocks because the convergence of currents creates upwelling zones where nutrient-rich cold water rises, supporting large phytoplankton populations that form the base of the food chain. While rivers draining freshwater and continental shelf topography may influence fishing, the primary reason for productive fishing grounds globally is the meeting of warm and cold ocean currents. > Convergence zones of oceanic currents create nutrient upwelling zones that sustain abundant fish populations—the blue highways of commercial fishing. Answer: (c).