Selectivity in the acoustic response of Cymodocea nodosa (Ucria) Ascherson

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 2002 English Publisher:Informa UK LimitedJournal:International Journal of Remote Sensing, volume 23, pages 2,869-2,876 (issn: 0143-1161, eissn: 1366-5901,

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Authors: Siljeström, Patricia; Moreno López, Adela; Carbó, Rafael; Rey Salgado, Jorge; Cara García, Juan S.;

doi: 10.1080/01431160110075875

handle: 10261/56931

Selectivity in the acoustic response of Cymodocea nodosa (Ucria) Ascherson

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Abstract

The objective of this paper is to present a hypothesis to explain the selective response of Cymodocea nodosa in sonar images taken with frequencies of 100 and 500 kHz, as with the former frequency the communities present a very strong acoustic response, while with the second they appear almost transparent. The morphology and anatomy of the plant is analysed, and it is concluded that the air contained in the channels of leaves, rhizomes and roots, in relationship with the penetration in soft sediments of the frequencies used is the cause for the acoustic signature of the communities.

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8 pages.

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