Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Distribution of submerged vascular plants, Chesapeake Bay, Maryland /
Other Authors
Author Title of a Work
Anderson, Richard R.,
Cook, William A.,
Publisher United States Environmental Protection Agency, Chesapeake Bay Program, United States Environmental Protection Agency, Center for Environmental Research Information
Year Published 1983
Report Number EPA/600-S8-80-039
OCLC Number 899275349
Subjects Aquatic plants--Chesapeake Bay Region (Md. and Va.) ; Vegetation mapping--Chesapeake Bay Region (Md. and Va.) ; United States--Chesapeake Bay Region.
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-S8-80-039 In Binder Headquarters Library/Washington,DC 04/05/2018
EJBD  EPA 600-S8-80-039 In Binder Headquarters Library/Washington,DC 10/03/2018
Collation 2 pages ; 28 cm
"EPA/600-S8-80-039." "November 1983." Caption title. At head of title: Project Summary.
Contents Notes
This research was initiated with the overall objectives of determining past and current (1978) distribution of submerged aquatic vegetation (SAV) in Chesapeake Bay, Maryland, and to formulate recommendations for future surveys with regard to frequency and methodology. Current distribution of SAV was determined through interpretation of 1:24,000 scale black-and-white photographs taken from a seaplan during the growing season. Distribution of SAV was mapped on 1:24,000 U.S. Geological Suvery (U.S.G.S.) topographic map mylars. A total of 77 maps were produced. A photo-copy of each map is included in the final report. The minimum mappable bed size was approximately 0.25 hectares. There were 16 quad sheets with no mappable vegetation present, and 24 sheets that had less than 10 hectares of vegetation. Of the 40 sheets with less than 10 hectares of vegetation, 11 were north of the Chester/Magothy Rivers and 21 were south of th eChoptank/Upper Patuxent Riverrs to Smith Island on the Eastern Shore. This indicates that the mid-portions of Chesapeake Bay were relatively healthy with regard to distribution of submerged vegetation. This area of the Bay also contained the highest diversity of submerged vegetation. ... Recommendations for furture SAV surveys include larger-scale color photography in areas defined as "critical," to better define species association and frequency of at least once every three years.