Quantifying the Impact of Propeller Scarring on

Seagrass Beds

Study in Two Natural Reserves in Southwestern Puerto Rico

The Natural Reserves of La Parguera and Guánica are situated in the southwest region of Puerto Rico within the Southwest Special Planning Area. A complex mixture of habitats including mangroves, coral reefs and seagrasses characterize the area. Two lines of coral reefs are situated close to the coast in an east-west orientation. Seagrasses are dominated by Thalassia testudinum although other species such as Halodule wrightii and Halophila spp. are present. The physical environment of the area is dominated by: limited precipitation, characteristic of a subtropical dry zone; southeasterly winds averaging 6-15 knots; and a small diurnal tidal range (ca. 0.3m).

This web page contains links to the project description and maps generated for a study of the impacts of recreational boating on seagrass beds within the Southwest Special Planning Area of La Parguera and Guánica Natural Reserves.

Table of Contents

• Project Description: See this page for a detailed project description.
• Maps and Figures: See this page for maps and figures resulting from field investigations.
• Project Participants: See this page for a list of project participants and their duties.
• Results and Conclusions: See this page for a summary of study results and conclusions.

Other Links of Interest:

• Department of Marine Science University of Puerto Rico, Mayagüez Campus
• NOAA/NOS Biogeography Program Benthic Maps of Puerto Rico and the U.S. Virgin Islands
• National Fish and Wildlife Foundation Conserving Native Fish, Wildlife, and Their Habitats