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首页> 外文期刊>Marine biology >New tool to elucidate the diet of the ormer Haliotis tuberculata (L.): Digital shell color analysis
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New tool to elucidate the diet of the ormer Haliotis tuberculata (L.): Digital shell color analysis

机译：阐明结核菌Haliotis tuberculata（L.）饮食的新工具：数字外壳颜色分析

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摘要

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 degrees) for ormers fed Saccharina sp. and the coral hue (25 degrees) 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.
机译：在整个生命周期中，欧洲鲍鱼鲍鱼鲍鱼的食物来源仍有待澄清。在这项研究中，开发了一种新颖的无损数字外壳颜色分析方法，以揭示欧洲鲍鱼（ormer）的饮食。该方法在2012年使用在布列塔尼西北部实验条件下饲养的Ormer进行了校准，并饲喂了受控的单特异性饮食，以定义与各种大型藻类（如红藻，绿藻和藻类）相关的壳色。通过比较野生成年个体和实验成年个体的壳色来建立总体食物偏好。外壳色相对应于在外壳数字图片上测得的HSL色彩空间中的色彩。在实验中，贝壳色相值根据处理方法而有所不同，以糖精藻（Saccharina sp。）饲喂的玩家，其最黄绿色的色相（72度）。和珊瑚色相（25度），供食者喂饱Palmaria palmata。根据采样部位和/或个体发育，观察到野生单体壳颜色的高度变化。野生Ormers的饮食可能与它们各自栖息地中大量漂流藻类有关。因此，这种非破坏性且易于使用的技术似乎是确定鲍氏藻类和其他草食性软体动物饮食的有前途的工具。

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  • 来源
    《Marine biology》 |2017年第4期|71.1-71.13|共13页
  • 作者

    Marchais V.; Jolivet A.; Herve S.; Roussel S.; Schoene B. R.; Grall J.; Chauvaud L.; Clavier J.;

  • 作者单位

    CNRS, IUEM, Lab Sci Environm Marin LEMAR, UBO,IRD,IFREMER,UMR 6539, Rue Dumont Urville, F-29280 Plouzane, France;

    CNRS, IUEM, Lab Sci Environm Marin LEMAR, UBO,IRD,IFREMER,UMR 6539, Rue Dumont Urville, F-29280 Plouzane, France|TBM Environm Somme, Technopole Brest Iroise,115 Rue Claude Chappe, F-29280 Plouzane, France;

    Univ Brest, UMS 3113, IUEM, Rue Dumont Urville, F-29280 Plouzane, France;

    CNRS, IUEM, Lab Sci Environm Marin LEMAR, UBO,IRD,IFREMER,UMR 6539, Rue Dumont Urville, F-29280 Plouzane, France;

    Johannes Gutenberg Univ Mainz, Inst Geosci, Johann Joachim Becherweg 21, D-55128 Mainz, Germany;

    IUEM, UMS 3113, Observ Sci Univers, Rue Dumont Urville, F-29280 Plouzane, France;

    CNRS, IUEM, Lab Sci Environm Marin LEMAR, UBO,IRD,IFREMER,UMR 6539, Rue Dumont Urville, F-29280 Plouzane, France|BeBEST Lab Int Associe, Rue Dumont Urville, F-29280 Plouzane, France;

    CNRS, IUEM, Lab Sci Environm Marin LEMAR, UBO,IRD,IFREMER,UMR 6539, Rue Dumont Urville, F-29280 Plouzane, France;

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  • 正文语种 eng
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  • 关键词

    Numerical color; Shell hue; HSL color space; Abalone; Food sources; Experiment;

    机译：数值颜色;贝壳色调;HSL颜色空间;鲍鱼;食物来源;实验;

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