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Monitoring Seagrass Distribution And Abundance Patterns: A Case Study From The Chesapeake Bay, Robert J. Orth, Kenneth A. Moore, Judith F. Nowak
Monitoring Seagrass Distribution And Abundance Patterns: A Case Study From The Chesapeake Bay, Robert J. Orth, Kenneth A. Moore, Judith F. Nowak
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Seagrasses, or submerged aquatic vegetation (SA V), have been mapped in the Chesapeake Bay five times between 1978 and 1987 with standard aerial photographic techniques, resulting in annual reports on SAV distribution. Acquisition of the vertical photography at a scale of 1:24,000, adhering to strict quality-assurance guidelines based on sun angle, tidal stage, cloud cover, wind speed, and season, has produced excellent, high-contrast imagery delineating beds of SAV from adjacent, unvegetated areas. Ground-truthing data from various State, Federal, and public organizations have corroborated the photographic data base. (more ...)