Project Page

Oyster Cultch Relief and Reef Configuration

Implementing Organization

State of Alabama

Overview

DWH Project Funding

$480,262

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 will deploy different types of cultch material in various configurations to facilitate positive settlement and growth of oysters on selected reef areas in Mobile Bay, Alabama. Since 2005, the oyster density on publicly harvested reefs has been in decline as a result of damage and silting associated with Hurricanes Ivan and Katrina and drought conditions. This has caused proliferation of the predatory oyster drill on historically productive reefs. Alabama Marine Resources Division (AMRD) will investigate the merit of deploying different types of cultch material in various configurations to enhance settlement and growth of oysters on selected reef areas in Mobile Bay. The project will restore reefs selected for project implementation. The project has three additional study objectives: (1) determine whether there are differences in oyster settlement, growth, and survival on reefs of differing levels of relief and/or orientation relative to currents; (2) determine optimum reef material relief needed to restore oyster density on specific reefs within historical reef areas in which hydrology parameters such as oxygen and salinity and oyster recruitment and survival are highly variable; and (3) estimate the cost/benefits of deploying cultch in configurations differing from traditional cultch broadcast methods. The broader goal is to inform and increase the success of future oyster reef restoration activities. For project implementation, two sites have been tentatively selected for pre-monitoring surveys--a 36-acre reef approximately 1 mile north-northeast of the mouth of East Fowl River; and Denton Reef (70 acres) located appr...click on "More Info" link below

Contact

Jason Herrmann
(251) 861-2882
jason.herrmann@dcnr.alabama.gov
Project Website
Project Partners

None

Affiliated Institutions

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/

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