Rich Array of Habitats

The Hudson River Estuary is an ecologically heterogeneous environment with a diverse array of habitat types (Table 1.1). It is essential to have an inventory of these habitats in order to understand their relative impacts on water characteristics of the Hudson and to develop management, conservation, and restoration plans. Most of the Hudson consists of deep water habitats that are dynamic hydrological and sedimentary environments. We know far too little about these areas, which is a problem when considering deep-water populations, especially those of shortnose sturgeon and Atlantic sturgeon. Recent surveys using remote sensing and direct sediment coring have provided a complete sediment-habitat map of the freshwater part of the estuary (Chapter 5).

Among the most ecologically important and poorly understood habitats are tidal wetlands, which include freshwater and salt marshes (Chapter 20). Both are biologically diverse and are locations of sedimentation, which is strongly

Table 1.1. Habitat types of the Hudson River

Estuary; Troy Dam to the Battery

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