A beluga whale has been seen swimming in the River Thames.

　　近日，泰晤士河中出现了一只白鲸。

　　It was first spotted by ecologist and ornithologist Dave Andrews, who said it had been feeding around barges near Gravesend in Kent.

　　它最先被生态学家和鸟类学家Dave Andrews发现，他说它一直在肯特郡格雷夫森德市附近驳船的地方觅食。

　　The Whale and Dolphin Conservation said it was "obviously very lost and quite possibly in trouble".

　　鲸鱼和海豚保护组织称它“显然非常迷失，很可能遇到麻烦”。

　　Vessels are being kept clear, with the British Divers Marine Life Rescue urging the public not to get too close and "to watch it from the shore".

　　英国潜水员海洋救生队敦促公众可以“从岸边观看”但不要太靠近，附近的船只也停止了运行。

　　Tanya Ferry, environment manager at the Port of London Authority which is monitoring the whale, said it was unclear what the whale could eat.

　　监测鲸鱼的伦敦港务局环境主任Tanya Ferry说，目前还不清楚这只鲸鱼可以找到什么食物。

　　"We do have quite a lot of plastic bags, which could be quite an issue," she said.

　　“我们河里有很多废弃塑料袋，这可能会造成很大的问题，”她说。

　　"We’re hoping if we give it enough space and keep an eye on it, it will find its own way out of the Thames to an environment that’s more appropriate for it.

　　“我们的希望是，如果给它足够的空间并密切注意它，它会自己找到泰晤士河的出口，到一个更适合它的环境中去。”

　　"We certainly don’t want people trying to rescue it."

　　“我们肯定不希望人们试图拯救它。”

　　Conservationists hope the outgoing tide will take it to safer waters.

　　环保主义者希望即将到来的潮水把它带到更安全的水域。

　　Beluga whales were last spotted in the UK three years ago off the coast of Northumberland and Northern Ireland, but sightings were "extremely rare", British Divers Marine Life Rescue spokeswoman Julia Cable said.

　　英国潜水员海洋生物救援发言人Julia Cable说，三年前，在英国的诺森伯兰郡和北爱尔兰海岸也发现过白鲸，但此类目击事件“非常罕见”。

　　She added the animal was "swimming strongly" and it would hopefully swim back out to sea.

　　她补充说，这只白鲸“泳姿矫健”，有望游回海里。