Fish Population and Behavior Revealed by Instantaneous Continental Shelf-Scale Imaging

Abstract

Until now, continental shelf environments have been monitored with highly localized line-transect methods from slow-moving research vessels. These methods significantly undersample fish populations in time and space, leaving an incomplete and ambiguous record of abundance and behavior. We show that fish populations in continental shelf environments can be instantaneously imaged over thousands of square kilometers and continuously monitored by a remote sensing technique in which the ocean acts as an acoustic waveguide. The technique has revealed the instantaneous horizontal structural characteristics and volatile short-term behavior of very large fish shoals, containing tens of millions of fish and stretching for many kilometers.

Document Details

Document Type
Pub Defense Publication
Publication Date
Feb 03, 2006
Source ID
10.1126/science.1121756

Entities

People

  • Deanelle T. Symonds
  • Nicholas C. Makris
  • Purnima Ratilal
  • Redwood W. Nero
  • Srinivasan Jagannathan
  • Sunwoong Lee

Organizations

  • Massachusetts Institute of Technology
  • Northeastern University
  • United States Naval Research Laboratory

Tags

Readers

  • Oceanography.
  • Radar Systems Engineering.
  • Wetland-Land-Environmental Management.

Technology Areas

  • Space