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首页> 外文期刊>Estuarine Coastal and Shelf Science >Growth patterns in mesophotic octocorals: Timing the branching process in the highly-valuable Mediterranean Corallium rubrum
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Growth patterns in mesophotic octocorals: Timing the branching process in the highly-valuable Mediterranean Corallium rubrum

机译:吞食性八方珊瑚的生长模式:在高度珍贵的地中海珊瑚红中进行分支过程的时间安排

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摘要

This study examined colony growth in the long-lived red coral Corallium rubrum, a slow growing octocoral endemic to the Mediterranean Sea and neighboring Atlantic areas and one of the most valuable of all marine species. Age and growth rate were determined on 165 sections of colony bases and branches by means of a validated age dating method in populations living between 50 and 130 m in the NW Mediterranean. The ratio between minimum and maximum diameter remained constant, indicating proportional growth of colony bases. No significant difference was found between the growth rate of bases and branches. A significantly different branching pattern (colony heightumber of branches) and average growth rate were found between the colonies of the different geographic areas. As growth rate decreases with age, this was due to the different age structure of the two saitiples. The maximum lifespan was found to be 106 years, a value not determined previously for C. rubrum colonies, and the average age of colonies at first branching was about 10 years. Linear growth varied widely between colonies as well as between branches in the same colony, confirming the lack of any strict relation between height and age. The study illustrates the growth of a mesophotic, heavily exploited Corallidae. (C) 2016 Elsevier Ltd. All rights reserved.
机译:这项研究检查了长寿的红色珊瑚红珊瑚珊瑚的菌落生长情况,该珊瑚是地中海和邻近大西洋地区生长缓慢的八叶地方病,是所有海洋物种中最有价值的物种之一。通过验证的年龄测年方法,在西北地中海地区生活在50至130 m之间的人群中,通过165个殖民地基地和分支区域确定了年龄和增长率。最小直径和最大直径之间的比率保持恒定,表明菌落基数成比例增长。基部和分支的增长率之间没有发现显着差异。在不同地理区域的菌落之间发现了明显不同的分支模式(菌落高度/分支数)和平均增长率。随着增长率随着年龄的增长而下降,这是由于两种皂树的年龄结构不同。发现最大寿命为106岁,这是先前未确定的C. rubrum菌落的值,并且第一次分支的菌落的平均年龄为约10年。菌落之间以及同一菌落中分支之间的线性增长差异很大,这证实了身高与年龄之间没有任何严格的关系。这项研究说明了食虫性,被大量开发的科all科的生长。 (C)2016 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Estuarine Coastal and Shelf Science》 |2016年第20期|106-110|共5页
  • 作者单位

    CISSC Univ Pisa, Dept Biol, Demog & Conservat Long Lived Species Lab, Via Volta 4, I-56126 Pisa, Italy;

    CISSC Univ Pisa, Dept Biol, Demog & Conservat Long Lived Species Lab, Via Volta 4, I-56126 Pisa, Italy|Ist Nazl Oceanog & Geofis Sperimentale, Via Grotta Gigante 42c, I-34010 Trieste, Italy;

    CISSC Univ Pisa, Dept Biol, Demog & Conservat Long Lived Species Lab, Via Volta 4, I-56126 Pisa, Italy;

    CISSC Univ Pisa, Dept Biol, Demog & Conservat Long Lived Species Lab, Via Volta 4, I-56126 Pisa, Italy;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Precious corals; Age determination; Growth rate; Timing of branching;

    机译:珍贵的珊瑚年龄确定生长速度分枝时间;

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