I have retired from the University of Rhode Island (July 2024) and will no longer be accepting graduate students or post-docs. I am continuing to publish and do research as Associate in Ichthyology at the Museum of Comparative Zoology at Harvard University.I will continue to update this site going forward and can be reached at my URI email address.—- Dr. Jackie Webb
“What underlies great science is what underlies great art, whether it is visual or written, and that is the ability to distinguish patterns out of chaos” — Diana Gabaldon, author of Outlander
For several decades we have studied the structural and functional development and evolution of fish sensory systems, especially the mechanosensory lateral line system, a primitive vertebrate sensory system found in all 34,000+ fishes (and in larval and aquatic adult amphibians). The lateral line system detects water flows, which facilitates critical prey detection, predator avoidance, communication, rheotaxis, and navigation. Furthermore, unlike the nose, eyes and ears, which are bilateral sense organs found on the head, the lateral line system is composed of many small sense organs (neuromasts) located in arrays on the skin and in tubular canals on the head, trunk and tail. In bony fishes, canal neuromasts are found within a conserved subset of skull bones on the head and in the trunk canal in the lateral line scales on the body. Thus, the lateral line system has a dual identity – as a major component of the skull of bony fishes and as an essential sensory system that mediates critical behaviors. An understanding of the role of the lateral line system in behavior will also shed light on how fishes may overcome challenges in aquatic environments presented by global change.
Our recent work has been on the developmental and evolutionary sensory biology and ecology of freshwater tropical and temperate fishes, coral reef fishes, cichlid fishes, and deep sea fishes (see Research Page). Each taxon has interesting or unique attributes that have allowed us to ask fundamental questions about sensory system evolution, development, functional morphology, and the sensory basis for behavior. We use a suite of classic and cutting edge methods for the analysis of comparative and developmental morphology and behavior.
Recent Webb Lab News
Dr. Webb was awarded the 2025 Joseph Nelson Award for Lifetime Achievement in Ichthyology by the American Society of Ichthyologists and Herpetologists
Gus Bienenfeld (undergraduate in the Webb Lab) won Honorable Mention in the 2025 URI Research Photography competition for his image of a barb (a minnow) vitally stained to reveal the distribution of superficial neuromast organs on the head, trunk and tail.
Dr. Webb was awarded the 2024 Robert K. Johnson Award for Excellence in Service by the American Society of Ichthyologists, of which she has been a member for 42 years (photo).
Dr. Webb was awarded the 2024 URI Foundation Award for Teaching Excellence, the highest teaching honor at URI.
Dr. Webb retired on June 30, 2024 and is now Professor Emerita at University of Rhode Island. She is continuing her research as an Associate in Ichthyology at the Museum of Comparative Zoology at Harvard University and through several collaborations.
Chaumel et al., (2025) ” The tuna keel is a mechanosensory structure” (Chaumel, Wainwright, Webb, White, Lauder) published in iScience – describes the LL canal contained within the lateral keels of tunas, suggesting that sensory input to the neuromasts located in these canals may play a role in their locomotory behavior. Open Access.
Jones et al., (2024b)“The Silverjaw Minnow, Ericymba buccata: An extraordinary lateral line system and its contribution to prey detection” (Jones, Maia, Conway, and Webb) – published in Integrative and Comparative Biology and based on an invited symposium talk at SICB – examines the anatomy of the unique dimorphic lateral line canal system of this species, describes the distribution of superficial neuromasts for the first time, and explores the sensory basis for prey detection.
Webb et al (2021) – members of the Webb and Maruska [LSU] labs published the first synthetic treatment of the anatomy, physiology and behavioral roles of the mechanosensory lateral line system of cichlid fishes. In: Abate ME & Noakes DLG (eds.). The Behavior, Ecology and Evolution of Cichlid Fishes: A Contemporary Modern Synthesis. Springer Academic, pp. 401-442.
Majoris et al. (2021) – members of the Buston Lab (Boston U.), Webb Lab at URI and Paris Lab (U. Miami) published the first integrated study of ontogeny of multiple sensory systems and orientation behavior throughout the larval phase of any coral reef fish (a goby; Elacatinus lori). Open Access, in Scientific Reports.
Hu et al. (2018) “Potential roles of olfaction and taste in the orientation behavior of coral reef fish larvae: Insights from morphology”, published in Journal of Fish Biology. – Special Issue on Sensory Ecology of Fishes – analyzed the ontogeny of the nose and taste buds in pelagic larvae of several coral reef fishes (damselfishes, goby, cardinal fish) and used these data to suggest that taste, not (just?) olfaction, mediates the chemosensory cues that larvae may use in orienting towards coral reef settlement sites.
Marranzino and Webb (2018) “Flow sensing in the deep sea: the lateral line system of stomiiform fishes“, published in Zoological Journal of the Linnean Society, revealed the presence of superficial neuromast proliferations in deep-sea stomiiform fishes for the first time, thus suggesting the importance of flow sensing in these ubiquitous and ecologically critical deep-sea fishes.
The Webb Lab @ URI 