Yazar
Nancy B Rybicki
5 cilt bulundu.
Cilt sonuçları
Data on the distribution and abundance of submersed aquatic vegetation in the tidal Potomac River and transition zone of the Potomac estuary, Maryland, Virginia, and the District of Columbia, 1987
Nancy B. Rybicki · U.S. Geological Survey
31 sayfa · 1988
Aquatic plants / Control / Geographical distribution / Hydrilla / Water quality
Data on the distribution and abundance of submersed aquatic vegetation in the tidal Potomac River and estuary, Maryland, Virginia, and the District of Columbia, 1986
Nancy B. Rybicki · U.S. Geological Survey
82 sayfa · 1988
Aquatic plants / Geographical distribution / Statistics / Estuarine plants
Data on the distribution and abundance of submersed aquatic vegetation in the tidal Potomac River and transition zone of the Potomac Estuary, Maryland, Virginia, and the District of Columbia, 1988
Nancy B Rybicki · U.S. Dept. of the Interior, Geological Survey
19 sayfa · 1990
Stream ecology / Freshwater plants
A survey of potential dredge disposal sites in the tidal Potomac River and upper Potomac Estuary between Washington, D.C. and the Route 301 bridge
Nancy B. Rybicki · U.S. Dept. of the Interior, U.S. Geological Survey
10 sayfa · 1999
Dredging spoil / Waste disposal sites
Biomass and vegetative characteristics of sawgrass grown in a tilting flume as part of a study of vegetative resistance to flow
Nancy B Rybicki · U.S. Dept. of the Interior, U.S. Geological Survey
29 sayfa · 1999
Wetland plants / Streamflow / Vegetation dynamics / Effect of water levels on / Saw-grass