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1991年3月,在距海口300余公里的长江下游扬中县水域内,渔民在江中捕鱼拉网时发现一头海洋鲸类,出水时已奄奄一息。经有关专家鉴定,该海鲸是伪虎鲸(Pseudorca Crassidens),
In March 1991, within about 300 kilometers of the Yangzhong water area of the lower reaches of the Yangtze River, about 300 kilometers away from the mouth of the Yangtze River, fishermen found a marine whale when they pulled fishing nets in the river and were dying when the water was discharged. The experts identified, the sea whales are pseudo-killer whales (Pseudorca Crassidens)