The recent fish mortality cases in Taal Lake and Laguna de Bay were not due to an outbreak of certain diseases, according to the Bureau of Fisheries and Aquatic Resources (BFAR). In a statement, BFAR said there is no outbreak of diseases in tilapia or shrimp and that the recent cases of fish mortality in the Taal Lake and Laguna de Bay area were caused only by low dissolved oxygen (DO) due to abrupt weather changes. The agency noted that as part of the biosecurity measures in place under Fisheries Order No. 100 and No. 241, it has been requiring health certificates in the transport or movement of tilapia fry and fingerlings and shrimp in post larvae stage for grow-out since the year 2015.

Miraflor, M. B. (2020, June 25). Fish mortality cases in Taal, Laguna lakes not due to disease. Manila Bulletin, p. 2.