Audubon Mid-Atlantic’s monthly freshwater mussel measuring event! Sign up to measure mussels and the water chemistry of the reservoir. This community science data will be used to help guide our mussel propagation program: growing freshwater mussels and placing them within the Delaware River watershed for filtration and cleaner water for all. Registration is required in advance, please fill out the form below to sign up. Observation of the mussel measuring is open to all visitors!