Join staff naturalists for an aquatic adventure. Using a seine net, we monitor the fish populations living in streams. Volunteers willing to get wet are needed to help catch, identify and measure (and then release) fish. Wear old shoes that tie tightly and clothes that can get wet and muddy. Bring a bag lunch, change of clothes, shoes and a towel. For teens and adults, no experience necessary. Call 410-741-9330 to register.