Jemseg Grand Lake Watershed Association

New Brunswick, Canada

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About Us

Welcome to the Jemseg Grand Lake Watershed Association.  We are a committed group of volunteers working to create and maintain a healthy watershed for all, while fostering a culture of shared responsibility and stewardship of this wonderful resource.  Our watershed covers 3,950 square kilometres, and is home to Grand Lake, the largest freshwater lake in the Maritimes (171 square km).

The above image shows our watershed in green, outlined in red, as defined by the New Brunswick Hydrographic Network.  Grand Lake is the largest body of water in the watershed, located in the southeast corner of the green watershed area (blue shaded area).  The Jemseg Grand Lake Watershed encompasses all lakes, streams, rivers, and other water bodies whose water eventually flows into the Jemseg River.  The Watershed is centrally located in New Brunswick, very near the capital city of Fredericton.  Jemseg is a community at the head of the Jemseg River through which all water exiting our watershed flows into the Wəlastəkw (Saint John River).

We are a committed group of volunteers who care about the Jemseg Grand Lake Watershed ecosystem.  The natural beauty, history, water activities and unique flora, fauna and wetlands of our watershed have attracted generations of summer and permanent residents, starting with the First Nations Wəlastəkwewiyik, people of the Wəlastəkw (Saint John River).  Wəlastəkw is the Maliseet name meaning “beautiful river”.

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Recent News

What’s under the ice?

December 20, 2024

Peering Into The Winter Fish Community in the Jemseg – Grand Lake Watershed We're excited to share some great news about our first eDNA analysis … [Read More...]

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Working together to achieve our goal: a healthy watershed ecosystem for all.

JemsegA
jemsega Jemseg Grand Lake Watershed Association @jemsega ·
2 Dec

Jemseg Grand Lake Watershed Association - Dec. 2 2025 AGM Reminder - https://mailchi.mp/05fe45e70167/jemseg-grand-lake-watershed-association-may-2023-newsletter-17444441

jemsega Jemseg Grand Lake Watershed Association @jemsega ·
2 Dec

Jemseg Grand Lake Watershed Association - Dec. 2 2025 AGM Reminder - https://mailchi.mp/9d7a1ada5349/jemseg-grand-lake-watershed-association-may-2023-newsletter-17444407

jemsega Jemseg Grand Lake Watershed Association @jemsega ·
18 Nov

Jemseg Grand Lake Watershed Association - Dec. 2 2025 AGM Reminder - https://mailchi.mp/049f2f49993f/jemseg-grand-lake-watershed-association-may-2023-newsletter-17444063

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Jemseg Grand Lake Watershed Association

2 days ago

Jemseg Grand Lake Watershed Association
Jemseg Grand Lake Watershed Association - Dec. 2 2025 AGM Reminder - mailchi.mp/9d7a1ada5349/jemseg-grand-lake-watershed-association-may-2023-newsletter-17444407 ... See MoreSee Less
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Jemseg Grand Lake Watershed Association

6 days ago

Jemseg Grand Lake Watershed Association
To see our FULL eDNA report, check the link in our bio to head to our website, where it is published under the News tab!Alosa pseudoharengus is a fish of many names! Alewife, Gaspereau, and Kiack are some of its monikers!This is a species that is commercially fished for in Atlantic Canada, often for use as bait in other fisheries.#fish #newbrunswick #environmentalDNA #nature #Conservation ... See MoreSee Less
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Jemseg Grand Lake Watershed Association

2 weeks ago

Jemseg Grand Lake Watershed Association
To see our FULL eDNA report, check the link in our bio to head to our website, where it is published under the News tab!The Silver Hake (Merluccius bilinearis) and Atlantic Mackerel (Scomber scombrus) are both fish that can be found in the Atlantic Ocean; not in lakes. They were most likely detected due to being used as bait by anglers. These fish would not be adapted to the lack of salt in our freshwater environment!#fish #newbrunswick #environmentalDNA #nature #Conservation ... See MoreSee Less
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Contact Us

Jemseg Grand Lake Watershed Association
27 Pine Grove Lane
Jemseg, NB E4C 4L7

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