Why are there cod fish in the grand banks?

Cod fish are found in the Grand Banks due to the area's nutrient-rich waters, which are created by the mixing of cold Labrador Current and the warmer Gulf Stream. This unique oceanographic environment supports a diverse ecosystem, providing ample food sources like plankton and small fish, which attract cod. Historically, the Grand Banks has been a prime fishing ground, contributing to the abundance of cod in the region. However, overfishing has significantly impacted their populations in recent years.