ALEXANDRIA, Va., July 28 -- United States Patent no. 12,693,417, issued on July 28, was assigned to China Agricultural University (Beijing).

"Water quality early warning system and method for aquaponics based on zebrafish behavior analysis" was invented by Cong Wang (Beijing), Yang Hu (Beijing), Daoliang Li (Beijing), Yingyi Chen (Beijing), Yaoguang Wei (Beijing) and Chunhong Liu (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A water quality early warning system and method for aquaponics based on zebrafish behavior analysis is provided. The system includes a monitoring chamber, an infrared transceiver array, a signal driving and collecting board and a processor, where the infrared transceiver array ...