Lauran Liggan, PhD
Marine and Molecular Ecology | Conservation Genetics
Researcher, Commercial Diver, and Seaweed Enthusiast
About me
I am a recent PhD graduate and National Geographic Explorer at the University of Wisconsin-Milwaukee. My research lies at the intersection of molecular ecology and marine conservation, with a particular focus on kelp forest–urchin barren dynamics, habitat loss, and the ecological processes that shape coastal marine ecosystems.
Currently, I am an Alaska Sea Grant Fellow, hosted by the NOAA Fisheries Regional Aquaculture Program in Juneau, Alaska. In this role, I will bridge science and policy to support sustainable aquaculture, healthy marine ecosystems, and resilient coastal communities.
Research Interests
Macroalgal Ecology
Macroalgae are the foundation of many nearshore ecosystems. Specifically, macroalgal communities are sensitive to changing environmental conditions, which can drastically influence their health and population dynamics. I have been involved in projects that aim to document population trends, providing a baseline to understand the effects of climate change on biodiversity.
Biomechanics
The nearshore environment is a physically stressful place to live, with crashing waves and strong currents. Macroalgae found in these environments face a number of challenges while attached to the rocks, unable to move. I investigate how macroalgae survive under constant physical stress, by describing their material properties as well as their ability to ‘hold on’.
Conservation Genetics
Genetic diversity within a population can provide a range of functional responses when exposed to stressful conditions. I investigate how kelp life-history dynamics shape population resilience through connectivity and dispersal. My main goal is to provide non-invasive genetic monitoring tools to assess habitat health and help create a basis for practical approaches to habitat conservation.
Contact
NOAA Fisheries, Juneau AK
Regional Aquaculture Program
lauran.liggan@noaa.gov
