An ecological characterization of Coastal An ecological characterization of Coastal Maine (north and east of Cape Elizabeth) ecologicalcharac02usfi Year: 1980 Chapter 7 The Lacustrine System Authors: Ronald Davis, Meryl Freeman, Stewart Fefef This chapter describes the freshwater bodies (lacustrine system) of the Maine coast, including natural lakes, natural lakes with water control structures, deep ponds, abandoned quarries that have become flooded, flooded gravel pits, reservoirs, and impounded streams and rivers. Data are not available for all the lacustrine water bodies. The lacustrine
An ecological characterization of Coastal An ecological characterization of Coastal Maine (north and east of Cape Elizabeth) ecologicalcharac02usfi Year: 1980 Chapter 7 The Lacustrine System Authors: Ronald Davis, Meryl Freeman, Stewart Fefef This chapter describes the freshwater bodies (lacustrine system) of the Maine coast, including natural lakes, natural lakes with water control structures, deep ponds, abandoned quarries that have become flooded, flooded gravel pits, reservoirs, and impounded streams and rivers. Data are not available for all the lacustrine water bodies. The lacustrine system of the coastal zone of Maine comprises slightly less than 3 of the zone's total land and freshwater area. Natural lakes that are larger than 10 acres (4 ha) are, according to Maine law, owned by the public. However, the adjacent lands often are owned privately and public access is highly limited. Most of the lakes are used for recreation, water supplies, and/or scenic backgrounds for residential (mostly seasonal cottages) developments. Lacustrine systems are bodies of fresh water that have depths >7 feet (>2 m) at low water (bodies of water having depths 2 m in depth), while the littoral subsystem is the shallow section of the lacustrine system. Each subsystem has component classes. It should be noted that lacustrine systems are often bordered by palustrine systems (defined by the presence of persistent emergent plants, , Scirpus spp. ) , but they are classified separately by the National Wetlands Inventory (NWI). Specific locations of lacustrine systems are included in atlas map 1. The definitions of the terms lacustrine, littoral, and limnetic, used by the National Wetlands Inventory, differ from those used by many limnologists. Those definitions conform to the system of Cowardin and coworkers (1979) which provides the framework for chapters on wetland and aquatic systems. This framework is described in chapter 1. Common names of species are used except 7-1
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