HYDROACOUSTICS
ANNUAL JOURNAL
START NEW VOL 20 SEARCH STATISTICS PAS - GDANSK DIVISION

Acoustic backscattering characteristics of mytilus dulis trossulus (southern Baltic Sea)

pp. 49-56, vol. 15, 2012

Natalia Gorska
Department of Physical Oceanography, Institute of Oceanography, University of Gdańsk, Gdańsk, Poland

Ewa Kowalska
Department of Physical Oceanography, Institute of Oceanography, University of Gdańsk, Gdańsk, Poland

Key words: habitat classification; benthic shelled animal

Abstract: Study of benthic habitats is significant from ecological and economical point of view. Non-invasive, rapid and relatively cheap methods of the habitat classification are required. It is the reason why the hydroacoustic classification techniques are developed. These techniques are sensitive to the seabed sediments type and the backscattering properties of the benthic habitats, and are developed for individual marine conditions. Last few years the hydroacoustic classification algorithms are developed for the Southern Baltic Sea. To improve the algorithms it is required to know the backscattering properties of the typical benthic individual and aggregated organisms. The main objective of the article is the study of the backscattering characteristics of benthic shelled animals Mytilus edulis trossulus, which is one of the dominant species in the southern Baltic Sea. The approach is based on the numerical modelling of the acoustic wave backscattering by the individual organisms and their aggregations and comparison of the modelling results with the measured backscattered data.

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© Polish Acoustical Society - Gdansk Department, Polish Academy of Sciences. This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported. (CC BY-NC-SA 3.0)