New tool to elucidate the diet of the ormer Haliotis tuberculata (L.): Digital shell color analysis
Autor: | S. Hervé, Jacques Clavier, Jacques Grall, Bernd R. Schöne, Aurélie Jolivet, Laurent Chauvaud, Sabine Roussel, V. Marchais |
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Přispěvatelé: | Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR), Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Brest (UBO), TBM environnement, Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), Institute of Geosciences [Mainz], Johannes Gutenberg - Universität Mainz (JGU), ANR-10-BTBR-0004,IDEALG,Biotechnologies pour la valorisation des macroalgues(2010), ANR-09-BLAN-0335,CHIVAS,Chimie des valves de la coquille Saint-Jacques européenne, archives multiproxies de la dynamique phytoplanctonique(2009), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) |
Jazyk: | angličtina |
Rok vydání: | 2017 |
Předmět: |
0106 biological sciences
food.ingredient Abalone Coral Zoology Chlorophyta Aquatic Science 010603 evolutionary biology 01 natural sciences Experiment food Algae Numerical color 14. Life underwater Haliotis Food sources Ecology Evolution Behavior and Systematics Hue Ecology biology 010604 marine biology & hydrobiology ACL biology.organism_classification Palmaria palmata Saccharina [SDE.BE]Environmental Sciences/Biodiversity and Ecology HSL color space Shell hue |
Zdroj: | Marine Biology Marine Biology, Springer Verlag, 2017, 164 (4), pp.71. ⟨10.1007/s00227-017-3103-3⟩ |
ISSN: | 0025-3162 1432-1793 |
DOI: | 10.1007/s00227-017-3103-3⟩ |
Popis: | International audience; Food sources of the European abalone Haliotis tuberculata throughout its life cycle are still to be clarified in nature. A novel non-destructive method of digital shell color analysis to reveal the diets of European abalone (ormer) was developed in this study. The method was calibrated using ormers reared under experimental conditions in North Western Brittany in 2012 and fed a controlled monospecific diet to define the shell hues associated with various macroalgae (i.e., Rhodophyta, Chlorophyta, and Phaeophyta). General food preferences were established by comparing the shell hue of wild adult ormers and experimental adult ormers. Shell hue corresponds to the color tint in the HSL color space measured on digital pictures of the shell. Experimentally, shell hue values differed according to treatment, with the most yellow-green hue (72°) for ormers fed Saccharina sp. and the coral hue (25°) for ormers fed Palmaria palmata. High variation in shell color of wild ormers was observed according to the sampling site and/or ontogeny. The diet of wild ormers may be related to the abundance of different drifting algae in their respective habitats. Thus, this non-destructive and easy-to-use technique appears to be a promising tool for determining the diet of Haliotis species and, perhaps, other herbivorous mollusks. |
Databáze: | OpenAIRE |
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