On the 5th, Sagamihara City announced that it had confirmed approximately 500 to 1,000 dead fish in the Sakai River, which flows along the border between Sagamihara City’s Chuo Ward and Machida City, Tokyo. According to Sagamihara City, at around 10:45 a.m. on the same day, local residents reported to Machida City that small fish had been found dead in the Sakai River near Kamiyabe 1-chome in the same ward. The two cities conducted on-site investigations and confirmed that dead fish such as minnows and minnows less than 10 centimetres in length had been found within a 1.1 kilometre stretch of the nearby Sakai River. A simple test was conducted on the river water, but no abnormalities were found at the time of the investigation, and the cause has not yet been identified. Kanaloco Thursday, December 5, 2024 at 21:40.
>>6 There are a lot of carp around the back of Yodobashi. If you walk a little further, you’ll find about 15 herons lined up on a dam or step, eating fish.
>>12 It’s not like it’s just starting, but the area around Machida wouldn’t be able to survive during the summer dry season if they didn’t get water from Sagamihara.
If it’s not poisonous, why are so many fish dying? The following causes are known: ① Oxygen deficiency When the water suddenly gets warmer, zooplankton and other organisms in the mud at the bottom of the water become more active and use more oxygen. This can result in a lack of oxygen in the water and the death of fish. 2) Gills become clogged When rain or other factors mix up the water at the bottom of the river, mud and other debris can get stuck in the gills, making it impossible for the fish to breathe and causing them to die. 3) Left behind by the tide Brackish waters are subject to the tides. Fish that enter the river to feed during high tide may die when the tide goes out and they are unable to get out. .
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