The currents around the island are responsible for flushing in food-rich waters , and the Whale and Dolphin Conservation Society has been carrying out surveys since 1999 to find out which areas are particularly important for feeding and nursing calves .
The currents around the island carry food-rich water . The Whale and Dolphin Conservation Society has been carrying out surveys since 1999 to find out which areas are important for feeding and nursing calves .