| Issue |
Aquat. Living Resour.
Volume 16, Number 3, July 2003
Acoustics in Fisheries and Aquatic Ecology. Part 2
|
|
|---|---|---|
| Page(s) | 215 - 221 | |
| DOI | https://doi.org/10.1016/S0990-7440(03)00015-9 | |
| Published online | 15 July 2003 | |
Statistical analysis of acoustic echoes from underwater meadows in the eutrophic Puck Bay (southern Baltic Sea)
Institute of Oceanology, Polish Academy of Sciences, ul. Powstaców Warszawy 55, 81-712, Sopot, Poland
Corresponding author: gorska@iopan.gda.pl
Accepted: 20 January 2003
In order to monitor the recovery of vegetation from pollution and the success of re-seeding efforts, acoustic echoes from the sea floor, covered and uncovered by underwater vegetation, were collected in Puck Bay (southern Baltic sea) using a 208 kHz Biosonics DT 4200 scientific echo sounder. The echo envelopes were examined and several of their parameters were recommended for further analysis. The possibility of using these parameters to distinguish between a bare sea floor and underwater meadows was tested. The parameters may be helpful in the identification of the species composition of the meadows and in accurate biomass assessment.
Key words: Echo signals / Underwater meadows / Parametric analysis
© Elsevier, IRD, Inra, Ifremer, Cemagref, 2003
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