Friday, April 15, 2016


CMGL Staff Lead Field Trip and Student Wins Award at Local Meetings in April

    By Luz Lumb


Dr. Davis (far left) and Dr. Gibeaut (center, pointing at map)
led a tour of Mustang Island geoenvironments
at the Texas meting of the American Shore and Beach
Conservation Association, hosted by UTMSI.
April was a busy month for meetings for our colleagues at the University of Texas Marine Science Institute (UTMSI). On April 1, UTMSI hosted the annual meeting of the Texas Chapter of the American Shore and Beach Preservation Association (ASBPA), which is held at a different location every year. Then on April 13-14, they hosted the Texas Bays and Estuaries Meeting, an annual event at UTMSI. Both meetings were well organized and very productive, and CMGL students and staff were happy to attend.


Drs. Davis and Gibeaut talk about Fish Pass, a tidal inlet
that was dredged and jettied back in the 70's, only to
be filled in by natural processes less than 10 years later.
Dr. Richard (Skip) Davis, Harte Research Institute visiting professor, author, and leader in the field of barrier island morphology, was part of the organizing committee for the ASBPA meeting. Skip and our own Dr. Gibeaut, with help from CMGL staff Luz Lumb, Anthony Reisinger, and Mukesh Subedee, led a field trip covering the length of Mustang Island and the major geoenvironments that are common to most Texas barrier islands. The group of about 20 academics and professionals in diverse fields related to Texas beaches and dunes (such as geology, remote sensing, geochemistry, environmental engineering, and restoration) got an up-close look at natural features such as tidal inlets, storm washovers, and back-island marshes and flats, as well as constructed features such as a dredge-and-fill  canal subdivision, a wastewater treatment plant outfall that has created a brackish marsh, and Packery Channel, which separates Mustang and North Padre Islands and is kept open by long jetties and periodic dredging.

The next day, Dr. Davis, Anthony, and Mukesh each presented work they are currently involved in. Dr. Davis pointed out the need for a state-wide sediment budget to be used by management agencies in large-scale management decisions. Anthony showed results from his PhD work that uses remote sensing techniques to identify effects of oyster dredging and other human activities on the transport of sediment in the major Texas bays, and Mukesh presented work he is leading in projecting environmental and socioeconoimc impacts of sea level rise along the Texas coast.


View from the observation tower of the Leonabelle Turnbull Birding Center in Port Aransas, where a wastewater tretment plant outfall has turned extensive tidal flats into a thriving brackish water marsh. 

Rachel won 2nd place in the student poster
competition at the Texas Bays and Estuaries meeting.

At the Texas Bays and Estuaries meeting, master's student Rachel Edwards presented a poster describing her thesis work. Rachel is working with Mukesh on characterizing the effect specific policies regarding development might have on the distribution of marsh environments under various sea level rise scenarios in the Galveston Bay area. Rachel's work is still in the initial phase, but we are excited that her results may be useful in terms of guiding policy toward a more resilient coast. Poster judges at TBEM must agree, because Rachel was awarded 2nd place (and $100) in the student poster competition! Many thanks to the Texas Bays and Estuaries Meeting and the Coastal Bend Bays Foundation for sponsoring the awards.

Rachel's work is part of a larger project, led by CMGL researcher Mukesh Subedee,
identifying biophysical and siocioeconomic impacts of sea level rise along
the Texas coast.