HYDROACOUSTICS LAB: 

DIDSON DATA

                      

We deployed a DIDSON unit in various locations within the Barataria-Caminada Bay System to test the performance of the unit in highly-turbid shallow waters characteristic of coastal Louisiana and the northern Gulf of Mexico. Additionally we were interested in the ability to compare DIDSON data to traditional sonar data collected with a BioSonics 420 kHz DE-X split-beam transducer.
Fish schools near mangrove edge
Fourchon, LA
25.7 MG
Large fish along mangrove bank
Fourchon, LA
1.03 MG
Fish schools along mangrove bank
Fourchon, LA
5.62 MG
Small trout adjacent dock light in channel
Fourchon, LA
14.6 MG
Fish interaction around piling in boat basin
Fourchon, LA
4.19 MG
Fish schools in boat basin, likely bay anchovy
Fourchon, LA
25.7 MG
Acoustic shadows illustrating fish
tail beat
Fourchon, LA
28.8 MG
Large fish in tidal channel
Fourchon, LA
1.37 MG
Feeding catfish
LSU Aquaculture Research Station
22.1 MG

Data from both sonar systems were collected concurrently in an effort to estimate fish community composition from the DIDSON data and relate back to the traditional sonar data recorded with the BioSonics system.

  

The following clip illustrates detection capability of targets in DIDSON data with Echoview.