Investigation of Processes and Factors Regulating the Generation, Maintenance and Breakdown of Bioluminescent Thin Layers

摘要

The field investigation for this project was conducted in Wilkinson Basin, Gulf of Maine (42 deg 20'N; 69 deg 47'W) from June 29 to July 6, 2000. Bioluminescent thin layers were located using the High-Intake-Defined Excitation-Bathyphotometer. Immediately following HIDEX-BP profiles the Johnson- Sea-Link submersible was launched with Dr. Katz's submersible holographic camera mounted on the upper work platform. Thin layers were located using real-time sensor feedback from intensified video recordings of stimulated bioluminescence. Over 600 single and double exposure holograms (the latter for velocity measurements) were recorded in the upper 100 m of the water column. Analysis is now underway to locate and identify articles within the holograms larger than 10 microns and to generate 3D vector arrays of instantaneous velocity distributions based on Holographic Particle Image Velocimetry.