Project Page

Gulf-wide assessment of habitat use and habitat-specific production estimates of nekton in turtlegrass

Implementing Organization

University of Southern Mississippi


DWH Project Funding


Known Leveraged Funding


Funding Organization

National Oceanic and Atmospheric Administration (NOAA)

Funding Program

The RESTORE Act Funds Bucket 4: NOAA RESTORE Act Science Program


Project Category


Project Actions

Monitoring and Observations

Targeted Resources


Project Description

Seagrass beds serve as habitat for many commercially and recreationally important finfish and shellfish during some stage of their life. In the northern Gulf of Mexico, turtlegrass, a type of seagrass, is a critical foundation species that provides energy for food webs and shelter and foraging grounds for many species. The more that is known about how turtlegrass supports finfish and shellfish species and if or how that changes in different parts of the Gulf of Mexico, the more fisheries managers will be able to consider how changing seagrass abundance is impacting certain fisheries. This project is a management-driven, three year Gulf of Mexico-wide assessment of turtlegrass habitat use by finfish and shellfish and an evaluation of the specific ways it supports blue crabs, a commercially important species which has seen recent declines in harvest in many Gulf states. The researchers will determine the abundance, diversity, age, and mix of juvenile and adult animals that use turtlegrass as habitat in Florida, Louisiana, and Texas. Additionally, they will measure the relationships in these three states between blue crab growth and mortality and characteristics of the turtlegrass such as plant density and height. Finally, they will develop separate statistical models for Florida, Louisiana, and Texas that will estimate blue crab production in turtlegrass based on crab abundance, growth, and mortality data. The data collected by this study and the models developed will provide critical information for resource management across the Gulf of Mexico.


Kelly M. Darnell
Project Website
Project Partners

Florida Fish and Wildlife Conservation Commission

Affiliated Institutions


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