Assessment of dual-purpose fish/oyster reefs in the Lynnhaven River, VA

Brief Description of Anticipated Work:
Our objectives are to monitor and document the status of these reefs.

For the oyster component, a physical assessment of the reefs is desired.

Assessing the reefs for oyster and other attached fauna for density and biomass (dry weight) and for oysters,


size-frequency distribution.

Approximately 50 samples will be needed to minimize the SE (standard error of the mean) and ensure survey accuracy.

An assessment of fish use of the reefs is also desired.

For this component, a variety of methods could be used.

Control sites for this work will also be necessary in order to determine what differences in fish species distribution and abundance, if any, exists between the fish/oyster reef sites and surrounding open sandy bottom areas.

There are two sites that will need to be monitored.

The first site is 8-acres mostly in the low intertidal and shallow water zone.

It consists of several thousand reef balls weighing approximately 50 lbs.


The second site which is currently under construction is proposed to consist of crushed concrete or granite riprap with an oyster shell veneer.

This subtidal, high-relief reef is approximately 18” off the surrounding bottom.

The second site will cover anywhere from 23-30 acres post-construction and is approximately -6 ft MLW.

Agency: Department of Defense

Office: Engineer Research and Development Center

Estimated Funding: $225,000

Who's Eligible

Relevant Nonprofit Program Categories

Obtain Full Opportunity Text:
NSF Program Desccription PD-22-8084

Additional Information of Eligibility:
This opportunity is restricted to non-federal partners of the Chesapeake Bay Cooperative Ecosystems Studies Unit and Piedmont South Atlantic Coast (CESU).

Full Opportunity Web Address:


Agency Email Description:
Derek Howard

Agency Email:

Date Posted:

Application Due Date:

Archive Date:

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