The reported fish kill in Tanza, this province, recently was, in fact, a "fish float" caused by dissolved oxygen or low oxygen levels in water, the Provincial Government-Environment and Natural Resources (PG-ENRO) officer clarified yesterday. Citing the report by Tanza Municipal Environment and Natural Resources Offices (MENRO), Engineer Rolino Posas said that low oxygen due to changing water temperature was the cause of the incident which the PG-ENRO tagged as a "fish float"

Giron A. (2016, October 26). Dissolved oxygen caused fish float. Manila Bulletin, p. 14.