The common carp can help in detecting the magnitude of wastes in waterways, according to a study by a researcher at the University of the Philippines Los Baños (UPLB).
GENDEr-bENDiNG fiSH A scientist collects blood sample from a carp found in one of the study sites in Laguna de bay. A research study conducted by UPLb has found carp in the lake have been “feminized,” or afflicted by shrunken testes, indicating high levels of pollution. DOst PhOtO