Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

A Package of Script Codes, POSIBIOM for Vegetation Acoustics; POSIdonia BIOMass

Version 1 : Received: 21 June 2023 / Approved: 21 June 2023 / Online: 25 June 2023 (02:01:42 CEST)

How to cite: Mutlu, E. A Package of Script Codes, POSIBIOM for Vegetation Acoustics; POSIdonia BIOMass. Preprints 2023, 2023061536. https://doi.org/10.20944/preprints202306.1536.v1 Mutlu, E. A Package of Script Codes, POSIBIOM for Vegetation Acoustics; POSIdonia BIOMass. Preprints 2023, 2023061536. https://doi.org/10.20944/preprints202306.1536.v1

Abstract

Macrophytes and seagrasses play a crucial role with a variety of the functions in the marine ecosystem and respond synchronized-promptly to the changing climate, followed by ecological status. Monitoring of the seagrasses was one of the paramount topics at the marine environment. One of the fast monitoring techniques is the vegetation acoustics with the advantages compared to the other remote sensing techniques. The acoustic method alone is ambitious to sea-truth identities of the backscatterers at the sea. Therefore, a package of computer programs was developed to identify, estimate leaf biometrics (leaf length and biomass) of one of the common seagrasses, Posidonia oceanica. Some troubleshooting in the acoustical data were fixed and then solved to reach the estimates regarding to the matters encountered for the vegetation as well as fisheries and plankton acoustics. One of the trouble was the “Lost” bottom which occurred during the data collection and post-processing due to occurrence of the acoustical noises, reverberations, interferences and intense scatterers suchlike fish schools. Another problem to remove was the occurrence as studying the near-bottom echoes belonging to submerged vegetations such as seagrasses, followed by spurious echoes. Last one was recognition of the seagrass to estimate leaf length and biomass calibrating the sheaths/vertical rhizome of the seagrass and establishing relationships between acoustical units and biometrics, respectively. As a consequence, an autonomous package of the code written in language MatLab was developed to perform all processes, and the name of the package was abbreviated as POSIBIOM, POSIdonia BIOMass. This study presented the algorithms, methodology, acoustics-biometrics relation, and mapping of the biometrics for the first time, and discussed advantages and disadvantages of the package compared to the software purposed for the bottom types, habitat and vegetation acoustic. The future studies were recommended to improve the package.

Keywords

acoustics; seagrass; computer programs; sea-truthing; estimates; leaf, biomass

Subject

Computer Science and Mathematics, Software

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