Overharvesting

Scientists say humpbacks face a combination of other threats including the overharvesting of krill, pollution, habitat degradation, and entanglement in fishing nets.

Dredging, pollution and overharvesting led to the disappearance of the oysters decades ago.

Before pollution and overharvesting intervened, New York was one of the world’s great oyster hubs and the shellfish was abundant in its street markets, dingy bars and fancy restaurants.