A Message from the Supervisor

“Welcome to Islip, the 3rd largest town in New York State, but with an endearing small town feel. We are so proud of our town…our beaches, golf courses, marinas, parks, housing opportunities for all, businesses, industrial parks, healthcare and educational institutions including our own Islip MacArthur Airport that provides many job opportunities. I sincerely hope you find this website helpful.” - Angie

An image of the outside of the shellfish facility, with rows of cultivation equipment in the foreground.

The Town of Islip is dedicated to the responsible development of the aquaculture industry, while expanding our marine-based economy, enhancing our shellfish production and improving the water quality of the Great South Bay.

The Great South Bay Shellfish Cultivation Facility produces the highest quality shellfish and seaweed products for growers and distributors throughout the country. Our hatchery plays a vital role in meeting the needs of the aquaculture community and ensures the continuation of the tradition of farming on the Great South Bay.


The Great South Bay was once a thriving environment for shellfish, producing more than half of the nation’s shellfish.

In the 1980’s the Great South Bay began to see a steady and significant decline in shellfish production due in part to over harvesting and algae blooms such as brown tide.

In 1985 the Town of Islip established a Division of Bay Management and Shellfish Management that included the development of a shellfish culture facility to help augment the spawning of oysters and clams.

Despite the Town’s best efforts to reseed the bay with clams and oysters; in 2009 the Town established the Bay Bottom Aquaculture Leasing Program, which encompasses 125 acres of Town-owned bay bottom. The intent of the program is to have individuals with experience in shellfish cultivation that are committed to promote the overall health of the Great South Bay’s ecosystem thru sustainable farming.

The Town of Islip’s Shellfish Cultivation Facility and the Bay Bottom Program focuses on restoring the value of the Great South Bay’s historical success.

a wooden pathway through the reeds and over the dunes, disappearing with the vanishing point into the horizon, where the ocean lays

Bay Bottom Aquaculture Leasing Program

The Town of Islip has an established Bay Bottom Leasing Program, which encompasses over 100 acres of Town-owned Bay Bottom in the Town of Islip. Lease Parcels were approved by the New York State Department of Environmental Conservation (NYSDEC), and range in size from 1 to 5 acres.

The Program is a partnership of government, local business and individuals working together to manage parcels of underwater land in the Great South Bay to grow oysters, hard clams, bay scallops and kelp.

The intent of the Program is to have individuals with experience in shellfish cultivation that are committed to promote the overall health of the Great South Bay’s ecosystem thru sustainable farming. Additionally, the Program has proven successful as a boost to the local economy, and to those farmers who lease bay bottom parcels for aquaculture. Once grown, the harvest is disbursed, marketed and sold to local restaurants and retail/wholesale establishments.

The Town currently has a waiting list for future available parcels. To place your name on the waiting list, contact the Department of Environmental Control (DEC), by clicking HERE, or by calling the DEC at (631) 595-3630.

Waiting List for Bay Bottom Leasing

Current Waiting List for Bay Bottom Leasing

Educational Programs

Educational opportunities are available in the form of open house tours and school field trips, as well as educational displays at community functions.

Please contact the hatchery for more information.

3 images side by side, the first with an open palm and sand, the second with hands cupped and tiny shells, the third with a fullgrown adult oyster pinched between 3 fingers

Oyster and Clam Seed Sales

The Town of Islip sells oyster and clam seed from our own shellfish cultivation facility. Thirty years of experience go into the careful growth of the larvae into various sizes to meet the individual needs of shellfish farmers.

Size (mm) Oysters/ 1,000 Clams/ 1,000
2.0 – 3.0 $11.00 $14.00
3.1 – 4.0 $13.00 $15.00
4.1 – 5.0 $16.00 $19.00
5.1 – 8.0 $21.00 $23.00
8.1 – 11.0 $25.00 $28.50
11.1 – 16.0 Upon Request Upon Request
16.1 – 25.0 Upon Request Upon Request

Payments: Full payment is due at the time of pick-up. All sales must be PAID IN FULL before product will be released. Payments can be made payable to the Town of Islip by check. Cash will not be accepted.

Orders for Pick-up: When the order is ready for pick up, a hatchery staff member will notify you.

Orders for Delivery: When full payment has been received, a hatchery staff member will assist with scheduling a shipment of your order.

Seed Order Form

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a satellite image of the aquaculture lease parcels off the cost of sandy island



The Great South Bay Shellfish Culture Facility partners with several government agencies, local non-profit organizations and educational institutions to further our goal of improving the health of the Great South Bay.

Long Island Oyster Growers Association

Cornell Cooperative

Stony Brook University


Army Corps of Engineers

Fire Island National Seashore

Back to Department of Environmental Control