Reconstructing individual shape histories of fish otoliths: A new image-based tool for otolith growth analysis and modeling

Type Article
Date 2009-03
Language English
Author(s) Fablet Ronan1, Chessel Anatole2, Carbini Sebastien2, Benzinou Abdesslam3, De Pontual HeleneORCID2
Affiliation(s) 1 : Telecom Bretagne, Inst Telecom, UMR 3192, LabSTICC, F-29238 Brest 3, France.
2 : IFREMER, STH, F-29280 Plouzane, France.
3 : ENIB, RESO, F-29280 Plouzane, France.
Source Fisheries Research (0165-7836) (Elsevier), 2009-03 , Vol. 96 , N. 2-3 , P. 148-159
DOI 10.1016/j.fishres.2008.10.011
WOS© Times Cited 12
Keyword(s) 2D otolith growth, Growth axis extraction, Growth ring extraction, Shape dynamics, Otolith imaging
Abstract In this paper is presented a novel image processing tool for the extraction of geometric information in otolith images. It relies on the reconstruction of individual otolith shape histories from otolith images. Based on the proposed non-parametric level-set representation of otolith shape history, applications to the extraction of growth axes and ring structures in otolith images are first considered. A second category of applications concern the analysis of 2D otolith growth. The potential of the proposed framework is illustrated on real otolith images for various species (e.g., cod, pollock) and discussed with a particular emphasis on the genericity of the approach and on applications such as otolith shape analysis, multi-proxy otolith analysis, otolith modeling. (C) 2008 Elsevier B.V. All rights reserved
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