New low-oxygen areas have been reported in Samish Bay of Puget Sound, Yaquina Bay in Oregon, prawn culture ponds in Taiwan, the San Martin River in northern Spain and some fjords in Norway, Diaz said.

• 他还认为，随着化肥价格的提高，农民们会想方设法地提高肥料的利用程度，尽可能地将肥料留在土地里。