Lack of oxygen causes massive fish death in Sanya: authority   

三亚河面出现大面积死鱼 调查判断为缺氧所致

3月3日，某论坛网友“小鱼郎”以《三亚河惊现大量死鱼，是污染还是其他原因？》为题发帖称，他和摄友在三亚实验中学旁的河边观景平台上拍摄白鹭，发现河面出现大量死鱼，已经腐烂并发出阵阵恶臭。该网帖配发的图片中，可以清晰地看到大量死鱼成堆涌在河边，形成一条白色的“河岸线”。 [查看全文]

(ECNS) -- Tens of thousands of dead fish have washed up on Sanya River beaches in China's southern-most island province of Hainan. Locals have been left wondering if something or someone has poisoned the water.

However, the Sanya Department of Marine Fisheries said the fish were likely killed by a lack of oxygen caused by weather changes, it was reported on Wednesday.

Officials collected water samples for analysis at a laboratory and found all indicators to be normal other than low dissolved oxygen levels.

Such levels could be the result of elevated temperatures and thus the inability of the water to hold the available oxygen, experts with the department said, adding that they would soon remove the fish to clean up the beach and continue to monitor water quality.

Locals first came across the dead fish and uploaded pictures of them creating a silvery blanket on the water's surface onto a forum on Tuesday.

Similar incidents have occurred in Sanya River before, local media reported.