Chemical ecology: chemically-mediated orientation and guidance in marine invertebrates, behavioral strategies for orientation in relation to fluid flow in aquatic environments, predator-prey and mating behavior mediated by chemical cues. Sensory ecology and physiology: sensory physiology of chemo- and mechanoperception in marine crustaceans, development of chemosensory systems, neuroanatomy of crustacean chemosensory and mechanosensory systems, signal structure and transmission of chemical and fluid mechanical signals.