Opportunity Information: Apply for W81EWF 22 SOI 0024
This grant opportunity, titled "Assessment of dual-purpose fish/oyster reefs in the Lynnhaven River, VA" (Funding Opportunity Number W81EWF 22 SOI 0024), is a Department of Defense effort led through the Engineer Research and Development Center to support applied science and monitoring of constructed reef habitats. The award mechanism is a cooperative agreement under the Science and Technology and other Research and Development activity category (CFDA 12.630). The funding is relatively small and targeted, with a single expected award and an award ceiling of $75,000. The original posting date was June 21, 2022, with an original closing date of August 14, 2022. Eligibility is listed broadly as "Others," with further clarification referenced in the full eligibility text for the announcement.
The core purpose of the work is to monitor and document the condition and performance of two constructed reef sites in the Lynnhaven River that are intended to function as dual-purpose habitat: supporting oyster growth and associated attached organisms while also providing structure that attracts and supports fish. The project is framed as a status assessment, meaning it is focused on measuring current biological conditions on and around the reefs and generating defensible, quantitative metrics that can be compared over time or against nearby non-reef areas.
For the oyster and attached-fauna component, the opportunity calls for a physical assessment of the reefs. The monitoring is expected to quantify oyster density and biomass, with biomass specified as dry weight, and to characterize oyster population structure using size-frequency distributions. In addition to oysters, the assessment is intended to document other organisms that settle on and attach to the reef material, with density and biomass measurements for these fouling or epifaunal communities as well. The announcement emphasizes statistical rigor by stating that approximately 50 samples will be needed to reduce the standard error of the mean and improve survey accuracy, implying a sampling design that is sufficiently replicated to produce reliable estimates rather than anecdotal observations.
For the fish-use component, the goal is to determine how fish communities are using these reef structures and whether the reefs change fish distribution and abundance relative to nearby habitat. The notice leaves flexibility in the choice of methods, indicating that a variety of sampling approaches could be used, as long as they can credibly characterize fish presence, species composition, and relative abundance. A key requirement is the inclusion of control sites, specifically open sandy bottom areas near the reefs, so that comparisons can be made between reef-associated fish assemblages and those found in surrounding non-reef habitat. This comparative design is intended to isolate the effect of the reef structures from background environmental conditions.
The monitoring will cover two distinct reef sites with different designs and physical settings. The first site is an 8-acre area located mostly in the low intertidal and shallow water zone. It is built from several thousand "reef balls," each weighing roughly 50 pounds, creating a broad field of smaller modular structures. The second site, which is described as being under construction at the time of the announcement, is a larger, subtidal, high-relief reef design proposed to use crushed concrete or granite riprap with an oyster shell veneer. This reef is planned to stand about 18 inches above the surrounding bottom, cover roughly 23 to 30 acres after construction, and sit at approximately minus 6 feet relative to mean low water (MLW). Together, these two sites represent different reef configurations and depths, which may influence oyster settlement success, attached community development, and how fish and other mobile species use the habitat.
Overall, the opportunity is asking for a field-based monitoring effort that produces quantitative, statistically supported measures of oyster reef condition and fish habitat use, including clear comparisons to non-reef control areas, across two constructed reef types in the Lynnhaven River. The expected deliverables implied by the scope include datasets and analyses on oyster density, dry-weight biomass, size structure, associated attached fauna metrics, and fish community observations sufficient to evaluate how well these dual-purpose reefs are functioning as intended.Apply for W81EWF 22 SOI 0024
- The Department of Defense, Engineer Research and Development Center in the science and technology and other research and development sector is offering a public funding opportunity titled "Assessment of dual-purpose fish/oyster reefs in the Lynnhaven River, VA" and is now available to receive applicants.
- Interested and eligible applicants and submit their applications by referencing the CFDA number(s): 12.630.
- This funding opportunity was created on Jun 21, 2022.
- Applicants must submit their applications by Aug 14, 2022. (Agency may still review applications by suitable applicants for the remaining/unused allocated funding in 2026.)
- Each selected applicant is eligible to receive up to $75,000.00 in funding.
- The number of recipients for this funding is limited to 1 candidate(s).
- Eligible applicants include: Others (see text field entitled Additional Information on Eligibility for clarification).
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Frequently Asked Questions (FAQs)
What is the title of this grant opportunity?
The opportunity is titled "Assessment of dual-purpose fish/oyster reefs in the Lynnhaven River, VA."
What is the Funding Opportunity Number?
The Funding Opportunity Number is W81EWF 22 SOI 0024.
Which agency is offering this opportunity?
This is a Department of Defense effort led through the Engineer Research and Development Center.
What type of award is being offered?
The award mechanism is a cooperative agreement.
What program or activity category does this fall under?
The activity category is Science and Technology and other Research and Development, with CFDA 12.630.
How many awards are expected?
The opportunity indicates a single expected award.
What is the maximum award amount?
The award ceiling is $75,000.
When was the opportunity originally posted?
The original posting date was June 21, 2022.
When was the original closing date?
The original closing date was August 14, 2022.
Who is eligible to apply?
Eligibility is listed broadly as "Others," with further clarification referenced in the full eligibility text of the announcement.
What is the main purpose of the funded work?
The core purpose is to monitor and document the condition and performance of two constructed reef sites in the Lynnhaven River that are intended to serve as dual-purpose habitat: supporting oyster growth and attached organisms while also attracting and supporting fish.
Is this project focused on construction or monitoring?
It is framed as a status assessment focused on field-based monitoring and documentation of current biological conditions and performance metrics for the reefs.
What does "dual-purpose" mean in this opportunity?
In this context, "dual-purpose" refers to reef structures intended to function both as oyster habitat (supporting oysters and other attached organisms) and as fish habitat (providing structure that attracts and supports fish communities).
What are the required monitoring topics for oysters?
The oyster-related monitoring calls for a physical assessment of the reefs to quantify oyster density and oyster biomass (specified as dry weight) and to characterize oyster population structure using size-frequency distributions.
How should oyster biomass be measured?
The opportunity specifies biomass as dry weight.
Is the assessment limited to oysters only?
No. In addition to oysters, the assessment is intended to document other organisms that settle on and attach to the reef material, including density and biomass measurements for these attached (fouling/epifaunal) communities.
How much sampling effort is expected for the oyster and attached-fauna work?
The announcement emphasizes statistical rigor and notes that approximately 50 samples will be needed to reduce the standard error of the mean and improve survey accuracy.
What is the purpose of collecting around 50 samples?
The stated intent is to reduce the standard error of the mean and improve survey accuracy, supporting defensible and quantitative estimates rather than anecdotal observations.
What is the fish-related monitoring intended to determine?
The fish-use component aims to determine how fish communities use the reef structures and whether the reefs change fish distribution and abundance relative to nearby habitat.
Are specific fish sampling methods required?
The notice leaves flexibility in methods and indicates that a variety of sampling approaches could be used, as long as they credibly characterize fish presence, species composition, and relative abundance.
Are control sites required for the fish assessment?
Yes. A key requirement is the inclusion of control sites, specifically open sandy bottom areas near the reefs, to enable comparisons between reef-associated fish assemblages and surrounding non-reef habitat.
Why are sandy-bottom control sites required?
The comparative design is intended to isolate the effect of the reef structures from background environmental conditions by comparing reef areas to nearby non-reef areas.
How many reef sites are included in the monitoring?
Two distinct constructed reef sites in the Lynnhaven River are included.
Where is the project located?
The work focuses on constructed reef sites in the Lynnhaven River, Virginia.
What is the first reef site like?
The first site is an 8-acre area located mostly in the low intertidal and shallow water zone. It is built from several thousand "reef balls," each weighing roughly 50 pounds, forming a broad field of modular structures.
What is the second reef site like?
The second site is described as being under construction at the time of the announcement. It is a larger, subtidal, high-relief reef design proposed to use crushed concrete or granite riprap with an oyster shell veneer.
How large is the second reef planned to be?
It is planned to cover roughly 23 to 30 acres after construction.
How high above the bottom is the second reef planned to stand?
The reef is planned to stand about 18 inches above the surrounding bottom.
At what depth is the second reef planned to sit?
It is described as sitting at approximately minus 6 feet relative to mean low water (MLW).
How do the two reef sites differ in design and setting?
The first is a smaller, mostly low intertidal/shallow-water site composed of many smaller modular reef balls. The second is a larger, subtidal, high-relief design using riprap with an oyster shell veneer and a planned elevation above the surrounding bottom. These differences may influence oyster settlement, attached community development, and fish use.
What kinds of outputs or deliverables are implied by the scope?
The scope implies field-generated datasets and analyses that provide quantitative, statistically supported measures of reef condition and fish habitat use, including oyster density, dry-weight biomass, size-frequency (population structure), attached-fauna density and biomass, and fish community observations with comparisons to non-reef control areas.
What does the opportunity mean by "defensible, quantitative metrics"?
It refers to measurements collected with sufficient replication and statistical support so results can be credibly compared over time or against nearby non-reef areas, rather than relying on qualitative descriptions.
Is the assessment meant to support comparisons over time?
Yes. The status assessment is described as producing metrics that can be compared over time or against nearby non-reef areas.
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