Seagrass September
This month, we’re teaming up with the NY-NJ Harbor & Estuary Program (HEP) to identify patches of submerged marine plant species to research and protect! The waters surrounding NYC provide critical habitat and many ecosystem services. However, they are also severely threatened by urbanization and climate change.
The main target species for this EcoQuest are Eelgrass and Widgeon grass. Helping us find these species would allow practitioners to examine the optimal local conditions for restoration.
- Eelgrass (Zostera marina) is a marine, perennial, vascular flowering plant commonly found in saline waters up to 24 feet deep. Eelgrass can form large beds on the seafloor that are one of the most productive habitats on earth. While it is found further out on Long Island, Long Island Sound and on the NJ Atlantic Coast, it is largely considered to be locally extinct to the NY-NJ Harbor. However, some patches may remain!
- Widgeon grass (Ruppia maritima) is a marine, annual, vascular flowering plant found in saline or brackish waters up to 9 feet deep. Widgeon grass also provides habitat (though generally not forming thick beds like eelgrass), can oxygenate the water and its pioneering nature may pave the way for the more vulnerable eelgrass.
What else might you find?
- Saltmarsh cordgrass (Spartina alterniflora) is our dominant intertidal marsh species. It is an extremely beneficial habitat builder used by hundreds of wildlife species.
- Rock weed (Fucus distichus) is a brown algae species that colonizes rocks and other hard surfaces near the shore.
- Other seaweeds: Harbor waters contain dozens of other seaweed species that may be red, brown or green. These species get nutrients right from the water column through their tissue and have no need for a vascular system (roots) but may be free floating or secure themselves to surfaces.
How do I get in the water?
- These species are best found by wading into the water from shore or by boat. Use the Hudson Access Project to find locations where you can get into and onto the Hudson River and harbor estuary. The site includes fishing, swimming, human-powered boating, motor-powered boating, and community science and educational opportunities.