Accession Number:

ADA478962

Title:

Documenting Hurricane Impacts on Coral Reefs Using Two-Dimensional Video-Mosaic Technology

Descriptive Note:

Corporate Author:

ROSENSTIEL SCHOOL OF MARINE AND ATMOSPHERIC SCIENCE MIAMI FL

Report Date:

2006-11-01

Pagination or Media Count:

7.0

Abstract:

Four hurricanes impacted the reefs of Florida in 2005. In this study, we evaluate the combined impacts of hurricanes Dennis, Katrina, Rita, and Wilma on a population of Acropora palmata using a newly developed video-mosaic methodology that provides a high-resolution, spatially accurate landscape view of the reef benthos. Storm damage to A. palmata was surprisingly limited only 2 out of 19 colonies were removed from the study plot at Molasses Reef. The net tissue losses for those colonies that remained were only 10 and mean diameter of colonies decreased slightly from 88.4 to 79.6 cm. In contrast, the damage to the reef framework was more severe, and a large section 6 m in diameter was dislodged, overturned, and transported to the bottom of the reef spur. The data presented here show that two-dimensional video-mosaic technology is well-suited to assess the impacts of physical disturbance on coral reefs and can be used to complement existing survey methodologies.

Subject Categories:

  • Meteorology
  • Biological Oceanography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE