Joanna Griffiths (IMAGE) Louisiana State University Caption Joanna Griffiths meticulously cross-bred oysters from the medium salinity site in Grand Isle and the low salinity site in Chauvin and produced 240 oyster families. She found that selective breeding in hatchery management practices may be an effective way of increasing resiliency for low salinity tolerance in eastern oysters. Credit Joanna S. Griffiths Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.