Red tide is thought to be the cause of fishery damage along the Pacific coast centered on eastern Hokkaido.
It has been a month since the outbreak was confirmed, but red tides are still confirmed in the images taken from the sky, and there are concerns about a prolonged effect.
According to Hokkaido, red tide has been confirmed over a wide area of the Pacific coast centered on the eastern part from the middle of last month, and the cause of red tide at 23 of the 48 points monitored by the road for the week until 24th this month. Plankton has been detected.
One month after the outbreak was confirmed, on the 27th, a video taken from an NHK helicopter around the Taiki fishing port in Taiki-cho confirmed that the sea surface had turned brown in a band shape.
According to the Fisheries Research and Education Agency, which confirmed the video, it was said that it was a red tide due to the abnormal growth of plankton, and when the seawater collected at the Taiki fishing port was analyzed on the 27th, the plankton "Karenia brevis" that causes the red tide It means that "Seriformis" was detected.
According to the road, the damage to fisheries such as sea urchins and autumn salmon, which are thought to be caused by the red tide, amounted to more than 7.7 billion yen as of 22nd of this month, and there are concerns about a prolonged impact. I will work on it.