Side-scan Mapping of Mobile Bay Relic Oyster Reef
Implementing Organization
State of Alabama
Overview
DWH Project Funding
$104,229
Known Leveraged Funding
$0
Funding Organization
Natural Resource Damage Assessment Trustees (NRDA)
Funding Program
Natural Resource Damage Assessment NRDA
Details
Project Category
Environmental
Project Actions
Species Restoration
Targeted Resources
Oysters/Reefs
Project Description
The project identified approximately 2000 acres of water bottoms from upper (287 acres), mid (63 acres), and lower (1,855 acres) Mobile Bay suitable for supporting oyster cultch. The results support the longer-term objective of reestablishing oysters in these areas through cultching and initial high density seeding with hatchery raised oyster spat. Historically reefs in these areas were highly productive and an important linkage ensuring the transfer of spat from upper to lower Mobile Bay and Mississippi Sound. Under the direction of Alabama Marine Resources Division (AMRD), this project surveyed the current extent and condition of the relic oyster reefs identified in previous reef surveys and other water bottoms not surveyed at that time. Approximately 8,847 acres of non-contiguous, state-owned water bottoms were identified for side-scan mapping in mid- to lower Mobile Bay based on a survey of living and relic oyster reefs conducted in 1968. An additional 5,153 acres of oyster bottoms were identified in upper Mobile Bay to quantify the location and extent of existing oyster resources that contribute to larval production and recruitment to lower Mobile Bay reefs. The project informed and enhanced restoration because the side-scan data was used to target priority areas for future oyster reef restoration, in conjunction with other ongoing oyster restoration efforts under consideration by the Alabama Trustee Implementation Group (AL TIG).
Contact
Amy Hunter(251) 621-1216
Amy.Hunter@dcnr.alabama.gov
Project Website
None
For official trustee information regarding the Deepwater Horizon NRDA, including information regarding the NRDA process and the status of projects, see https://www.gulfspillrestoration.noaa.gov/