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25th of November 2021

Nitrogen Sources

Curious about the sources of nitrogen pollution in our Great Ponds? Please join us for the first installment of the Island Ponds Community Workshop on December 2nd @1pm via Zoom for Dr. Javier Lloret’s talk entitled: Using Stable Isotopes to Identify Sources & Effects of Nitrogen Pollution in Great Pond. Our ponds are struggling! Why, […]


24th of November 2021

Giving Thanks

On behalf of the Great Pond Foundation Board of Directors and Executive Director: We are grateful forโ€ฆ Kent Healy who never stopped teaching us all how to be better pond stewards the opportunity to persevere precious pond data, thanks to the MV Community Foundation Town of Edgartown for dredging the Great Pond, ensuring pond cuts result in a […]


8th of November 2021

Generational Knowledge

Our Island community lost a dear friend, trusted advisor, scholar, and a gentleman who epitomized all the best of the Vineyard. The following was message sent in response to Kent Healyโ€™s passing, by Executive Director, Emily Reddington, to the Great Pond Foundation Board of Directors. Per the request of the Board, we wanted to share […]


4th of August 2021

Cyanobacteria Alert

ALERT for Parts of Edgartown Great Pond A CYANOBACTERIA ALERT has been issued by the Edgartown Board of Health for the northern portion of Edgartown Great Pond.  This change in designation from green to yellow indicates that as the pondโ€™s salinity decreases and summer temperatures increase, there is evidence that the concentration of cyanobacteria cells in […]


Summer Cut

When will the Pond be cut? Although the elevation of Edgartown Great Pond is on the rise, it is not quite high enough for a cut. The Pond is currently just shy of 3 feet above sea level, ~ 0.5 foot below the minimum threshold needed for a successful cut. There are 2 inches of […]


23rd of June 2021

Opening & Elevation

When is it time to cut EGP? Although the elevation of Edgartown Great Pond is on the rise, it is not quite high enough for a cut. The Pond is currently approximately 2.9 feet above sea level, below the 3.5 foot minimum threshold needed for a successful cut. ย Since GPF began monitoring the elevation of […]


Jellyfish Sightings

Clinging Jellyfish Caught During Beach Seine: Clinging Jellyfish have again been spotted in Edgartown Great Pond. First observed in EGP in 2018, clinging jellyfish, officially known as Gonionemus vertens, pack a powerful sting. GPF received reports of clinging jellies in Slough Cove from Martha Cohan and from our science team who observed them when conducting […]


31st of March 2021

Excellent EGP Opening

Successful Pond Cut Following Winter Dredging Edgartown Great Pond remains open and the tidal flush continues. The Pond cut on February 28, 2021 and there has been sufficient tidal exchange to flush all regions of EGP. Following a breach of the barrier beach on Sunday February 28th, Edgartown Great Pond (EGP) is open, tidal, and […]


5th of March 2021

EGP Cut Update

The Pond Is Open & Tidal: Following a breach of the barrier beach on Sunday February 28th, Edgartown Great Pond (EGP) remains open, tidal, and connected to the Atlantic Ocean. There are 2 phases to an opening: 1) Drainage and 2) Tidal Exchange. Prior to the cut, EGP was ~4 feet above sea level and […]


26th of February 2021

EGP Cut & Dredging Update

Pond Cut Scheduled for Weekend: The current elevation of Edgartown Great Pond is ~4 feet above sea level. Pond cuts are possible when EGP is โ‰ฅ 3.5 feet above sea level. Shellfish Constable, Paul Bagnall, announced Monday afternoon at the meeting of the Edgartown Board of Selectmen that the Town of Edgartown has scheduled an […]