Scientists scrambling to manage the spread of non-native mussels harming the Great Lakes ecosystem may have hit on an unusual idea. Perhaps they can kill them with another Great Lakes headache, the algae that sometimes blooms too much and threatens water quality. Research found that chemicals produced by blue-green algae, also called cyanobacteria, are toxic to the larvae of invasive zebra and quagga mussels. By Indri Maulidar.