. Alewife Reservation & Alewife Brook master plan. Wetlands; Wetland conservation. Recommendations 1. Restore the cattail marsh as an eco- logically valuable wetland. Remove the invasive common reed {Phragmites aus- tralis) and establish different habitats including open water, high marsh, and low marsh. Investigate the feasibility of excavation to increase flood stor- age capacity of the wetiand. Create a riparian buffer to increase the diversity of flora and fauna and contribute to the treatment of incoming stormwater. In addition, creating an open, natural channel connection from the ma
. Alewife Reservation & Alewife Brook master plan. Wetlands; Wetland conservation. Recommendations 1. Restore the cattail marsh as an eco- logically valuable wetland. Remove the invasive common reed {Phragmites aus- tralis) and establish different habitats including open water, high marsh, and low marsh. Investigate the feasibility of excavation to increase flood stor- age capacity of the wetiand. Create a riparian buffer to increase the diversity of flora and fauna and contribute to the treatment of incoming stormwater. In addition, creating an open, natural channel connection from the marsh to Alewife Brook would provide potential spawning habitat for alewife and blue- back herring in the restored marsh. This area is only partially owned by the MDC. The City of Arlington owns the remaining piece necessary to complete the path connections. Land acquisi- tions in this area or a joint effort for a restoration concept including the dif- ferent owners are possibilities (Refer to Section 3D), (long-term recommenda- tion) 2. Investigate the feasibility of remov- ing the concrete lining of the Alewife Brook stream bed and banks and re- storing a natural channel. If this ac- tation will provide habitat variation for bird species. Increase channel sinuosity to allow for stable transport of chan- nel discharge and sediment (long-term recommendation). 3. Selectively remove exotic species in riparian areas and replace with native plant communities (refer to Appendix B for appropriate plant species). 4. Incorporate biofiltration areas into the park design to treat stormwater runoff from the Alewife Brook Parkway road surface, which is currently discharged untreated into Alewife Brook. Com- bined with grease and oil separator units that would pre-treat the runoff and discharge it into the vegetated biofiltration area (see Figure 59, Pro- posed Section) this recommendation could help improve the water qual- ity of the Alewife Brook. Vegetated swales will also be used to captu
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