Rob Toonen

Rob Toonen is a Research Professor at the Hawaii Institute of Marine Biology within the School of Ocean and Earth Science and Technology (SOEST) at the University of Hawaii. He joined the faculty in 2003 after completing his Master's degree at UNCW and PhD at UC Davis. His research spans multiple areas of marine biology with a focus on understanding ecological and genetic processes in marine organisms.

Dr. Toonen's educational background includes:

• PhD from UC Davis (Grosberg Lab)
• Master's degree from UNCW (Pawlik Lab)

His research program integrates diverse approaches including individual behavioral assays, ecological experiments in both field and laboratory settings, and molecular genetic tools to address fundamental biological questions. Dr. Toonen considers himself "an ecologist who applies molecular techniques rather than a molecular biologist per se," emphasizing that the research question should drive the methodology. His work has significantly contributed to understanding how oceanographic forces impact gene flow in marine species with pelagic larvae.

Dr. Toonen's publications reveal a strong focus on larval ecology, population genetics, and marine conservation. His research examines coral responses to environmental stressors like ocean acidification and warming, and he has made significant contributions to methodological advances in population genomics, including the development of ezRAD genetic techniques. His work on physical zonation in littoral habitats has provided new frameworks for understanding shoreline ecosystems.

Among his notable scientific contributions:

• Developed a unifying model of physical zonation on littoral shores that accounts for both tidal and wave influences
• Investigated chaotic genetic patchiness in high gene-flow marine populations
• Examined the long-term reproductive impacts of coral bleaching events
• Documented range expansion of giant clam species using molecular identification techniques

Dr. Toonen maintains active collaborations across multiple institutions and engages with both academic and broader communities. He writes for aquarium hobby magazines, bridging scientific research with practical applications in the aquarium industry. His work has practical implications for marine conservation, species management, and understanding how marine ecosystems may respond to ongoing environmental changes.