5 Million Oysters In 5 Years

The Baltimore Oyster Partnership aims to restore oyster populations in the Chesapeake Bay by growing 5 million oysters in 5 years in the Baltimore Harbor. Through this work, the Baltimore Oyster Partnership will improve water quality, provide habitat, and empower volunteers to raise awareness about the critical role of oysters in maintaining a healthy Baltimore Harbor and Chesapeake Bay.

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Baltimore Oyster Partnership Mission Pillars:

  • Grow 5 million oysters in the Baltimore Harbor over the next 5 years to restore historic populations in the Patapsco River.

  • Boost biodiversity by rebuilding oyster reef habitats that support wildlife in the Bay.

  • Boost biodiversity by rebuilding oyster reef habitats that support wildlife in the Bay.

  • Empower volunteers to become citizen scientists and raise awareness about pollution in the Baltimore Harbor.

1. Restoration of Historic Oyster Populations:
The Baltimore Oyster Partnership is committed to growing 5 million oysters over the next five years. This ambitious goal aims to restore the once-thriving oyster population in the Patapsco River that played a vital role in the ecosystem and water quality. By increasing the abundance of these important creatures, we aim to revive their natural habitats and encourage the recovery of the marine ecosystem.

2. Providing Natural Water Filtration:
Oysters are nature's efficient water filters, capable of filtering up to 50 gallons of water per day. Increasing the number of oysters in an ecosystem significantly reduces pollutants and improves the overall ecosystem health, simply through their natural filtering processes. This pillar of our oyster restoration work emphasizes the oysters’ capacity to filter water and ensure a cleaner and safer Baltimore Harbor for aquatic life and local communities.

3. Rebuilding Biodiversity and Habitat:
Rebuilding oyster reefs is crucial for enhancing biodiversity in the Chesapeake Bay. These reefs create habitats for various marine organisms, offering shelter and food sources for fish, crabs, and other species. By prioritizing the restoration of these reefs, we are not only enriching the biodiversity of the region, but also encouraging a more robust food chain and promoting natural processes that help balance water quality and nutrient cycling.

4. Engaging Citizen Scientists and Communities:
Empowering volunteers to participate as citizen scientists is a cornerstone of our mission. Through education and hands-on involvement, our volunteers can contribute to oyster restoration efforts while gaining valuable knowledge about oysters’ significance in maintaining water health. This pillar focuses on raising awareness about pollution in the Baltimore Harbor and fostering a community that actively participates in safeguarding the environment and advocating for sustainable practices.

The 3 Stages of Oyster Gardening


Stage 1: Installation

For an oyster gardener, Fall is Installation Season! This is when we install new oyster habitats across the Baltimore Harbor, referred to as oyster gardens. Each oyster garden has 20-60 cages in it, each of which contain over a hundred oyster shells. At an installation workshop, volunteers help us fill these cages with our spat-seeded oysters, tie them to their dock, and drop them into the harbor.

Stage 2: Cleaning
While these oysters are growing in Baltimore Harbor, we also protect them by keeping their habitats clean. Without regular cleaning, mussels will grow rampant on the oyster cages and can inhibit oysters’ growth. We rely on our volunteers to join us for cage cleaning days where we pull up the habitats and scrub them clean of algae and other debris. This cleaning stage happens in the winter after installation is over.

Stage 3: Planting
The final stage in the cycle of oyster gardening is planting! This happens in the late spring and early summer, when our baby oysters have made it to maturity (one year old). Our volunteers join us at one of our oyster gardens to pull up our cages and transfer the oysters from their Baltimore Harbor habitat. We’ll take them out on a historic ship, crewed by Living Classrooms, and bring them out to a protected oyster reef to live out the rest of their days.

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