On Friday, June 9, thousands of dead or dying fish washed ashore in a Matagorda river channel leading to the Gulf of Mexico.

Media: Kyle Naegeli

On Friday, June 9, thousands of dead or dying fish washed ashore in a Matagorda river channel near LCRA RV Park leading to the Gulf of Mexico.

Kyle Naegeli, known as The Fish Whisperer, was able to capture the eerie phenomenon on camera and shared it with his YouTube followers.

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“All of a sudden, a huge amount of menhaden started to surface and then die,” Naegeli wrote on his YouTube channel. “Pretty soon there were miles of menhaden washing up and dying along with other bigger game fish.” He continued asking his followers to share what caused the eerie amount of fish washing up on shore.

One user claims there were too many fish in the water and that caused them to run out of oxygen, but others disagreed with him. 

“No its not the amount of fish in the water, it wouldn’t cause them to swarm at the shallows as they did here,” one user commented. “What probably happened is blooms of algae sits on the top of the water and stops the sunlight from reaching the plants that create oxygen, in turn killing the plants and then the fish. they swarm at the shallows because there is less algae there and so a lot more oxygen, unfortunately, they push against each other and beach themselves.”

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Many others agreed with the commenter who blamed the fish deaths on a lack of oxygen in the water due to algae blooms taking up all the oxygen in the water.

Chron.com has reached out to both Naegeli and Texas Parks and Recreation for more information about the phenomenon, but have yet to hear back. When a comment is given, the story will be updated.