CHICAGO, AFP — The elimination of large sharks from coastal waters off the U.S. eastern seaboard has disturbed the marine ecosystem, and wiped out one U.S. bay scallop fishery, a study released last week said.
CHICAGO, AFP — The elimination of large sharks from coastal waters off the U.S. eastern seaboard has disturbed the marine ecosystem, and wiped out one U.S. bay scallop fishery, a study released last week said.
芝加哥，法新社—上周发布的一份研究指出，在美国东岸沿海地区，大型鲨鱼的绝迹已改变了海洋生态系统，也消灭了美国的干贝渔业。