Romberg Tiburon Center for Environmental Studies

Image: Ripples on water

SF State's bayside marine and estuarine research facility.

Rosenberg Institute Seminar Series at the Romberg Tiburon Center-Abstracts


The Barbara and Richard Rosenberg Institute for Marine Biology and Environmental Science Seminar Series brings leading local, national, and international scientists to a public forum at RTC to speak about the latest advances in science.

See abstracts or brief descriptions for select seminars below.


Fall 2017
8/23: Close Encounters: Partial Habituation Of A Coral Reef Fish To Chronic Recreational SCUBA Diving
April Ridlon, PhD Candidate, Department of Ecology, Evolution & Marine Biology, UC Santa Barbara
Despite compelling evidence that recreational activities on land (e.g. hiking) can elicit anti-predator responses in prey species, and even trigger behaviorally mediated cascades via “fear effects”, analogous studies of the effects of recreational activities in marine systems (e.g. SCUBA diving) are rare. We measured the responses of a common herbivorous fish to diver presence and approaches across a gradient of chronic diver visitation to coral reefs surrounding Little Cayman Island, where spear fishing is prohibited and SCUBA diving is popular. April will present results comparing the anti-predator behavior, feeding rates, and time budgets of fish among reefs with different historical levels of diver visitation, and discuss the conditions and consequences of partial habituation of this species to divers.  She will also discuss the applicability of these results to the management of marine systems for multiple human uses, including the interaction between spear fishing and recreational diving effects on coral reefs worldwide.
Wednesday, 9/6: Coastal Geomorphology Evolution from Hours to Decades: Lessons from Video Remote Sensing
Cassia Pianca, PhD, Marine Scientist, Mazzini Laboratory, Romberg Tiburon Center for Environmental Studies, San Francisco State University
The coastal zone is the extremely dynamic transitional area between land and oceanic environments. Most of the world population lives in or near these regions, thus they are important for economic and social reasons. A better understanding of these places is required for the proper management to preserve them for future generations. Interest in these regions has intensified in recent years due to climate change issues such as an increase in hurricane occurrence, loss of coastal areas due to erosion, change of the wave climate, and sea level rise. The processes that occur in these coastal environments are responsible for its complexity and diversity. These processes can vary at time scales from seconds to geological periods, and space scales from meters to 10’s of kilometers. The main obstacle to obtaining information on coastal variability is the lack of large temporal and spatial measurements using conventional methods. With the advent of remote sensing, low spatial and temporal resolution can be overcome, especially with the development of video cameras to study nearshore environments. Results from two different coastal regions in North Carolina using this remote sensing technique will be presented: time-space variability and forcing dependencies of a 26 year record of daily to hourly shoreline data from Duck Beach, and a description of the migration pattern of bedform features associated with an ebb-tidal delta during a 23 day experiment at New River Inlet.


The Seminar Series is supported by generous contributions from the Barbara and Richard M. Rosenberg Institute at the Romberg Tiburon Center, San Francisco State University
Seminar Abstracts archive (Spring 2015-Spring 2017)
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