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首页> 外文期刊>Journal of oceanography >Marine artificial structures as amplifiers of Aurelia aurita s.l. blooms: a case study of a newly installed floating pier
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Marine artificial structures as amplifiers of Aurelia aurita s.l. blooms: a case study of a newly installed floating pier

机译：海洋人造结构作为Aurelia aurita s.l.的放大器绽放：一个新安装的浮墩的案例研究

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摘要

Increase of marine artificial structures, providing more substrate for jellyfish polyps, has been argued to increase jellyfish outbreaks, although no explicit evidence exists. We report a case study demonstrating a remarkable increase of Aurelia aurita s.l. ephyrae after the installation of a floating pier (48 × 6 m) in a fishing port on the Inland Sea of Japan. Monitoring of ephyrae from January 2010, prior to the installation of the floating pier in April 2010, to July 2011, revealed that their time-weighted average density increased 3.5 fold, from 1.1 to 3.9 ephyrae m~(-3), and the integrated number of ephyrae exported from the port increased 4.3 fold, from 5.7 × 10~6 to 25 × 10~6 ephyrae, after the installation. However, in a nearby port, a control site, the abundance of ephyrae decreased by ca. one third during the same period. Monitoring of polyps showed that they initially colonized the undersurface of the pier by August 2010, followed by a rapid population increase. They strobilated from December 2010 to May 2011. We computed the number of ephyrae released from the strobilae to be ca. 25 × 10~6, very close to the net increase of ephyrae produced and exported from the port. This study corroborates that the installation of an artificial structure provides new a substrate for polyps, which allows them to produce more ephyrae to induce medusa blooms.
机译：尽管没有明确的证据表明，增加海洋人工结构，为水母息肉提供更多的底物，会增加水母的爆发。我们报告了一个案例研究，表明Aurelia aurita s.l.的显着增加。在日本内陆渔港上安装浮码头（48×6 m）后的浮萍。从2010年1月（在2010年4月安装浮码头之前）到2011年7月对e进行监测，发现它们的时间加权平均密度从3.5 e m〜（-3）增加了3.5倍，从1.1到3.9 e。安装后，从港口出口的紫杉数量增加了4.3倍，从5.7×10〜6增加到25×10〜6。但是，在附近的港口（控制地点），紫杉的丰度降低了约5％。同一时期的三分之一。监测息肉显示，他们最初在2010年8月殖民了码头的地下，随后种群迅速增加。从2010年12月到2011年5月，它们的脚踩着脚步。我们计算了从该球杆中释放出的紫杉数量约为ca。 25×10〜6，非常接近港口生产和出口的紫菜净增加量。这项研究证实，人工结构的安装为息肉提供了新的基质，从而使息肉产生更多的e，从而诱发水母开花。

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  • 来源
    《Journal of oceanography》 |2014年第5期|447-455|共9页
  • 作者

    Ryosuke Makabe; Ryuji Furukawa; Mariko Takao; Shin-ichi Uye;

  • 作者单位

    Research Center for Creative Partnerships, Ishinomaki Senshu University, 1 Shinmito, Minamisakai, Ishinomaki 986-8580, Japan;

    Graduate School of Biosphere Science, Hiroshima University, 4-4 Kagamiyama 1 Chome, Higashi-Hiroshima 739-8528, Japan;

    Graduate School of Biosphere Science, Hiroshima University, 4-4 Kagamiyama 1 Chome, Higashi-Hiroshima 739-8528, Japan;

    Graduate School of Biosphere Science, Hiroshima University, 4-4 Kagamiyama 1 Chome, Higashi-Hiroshima 739-8528, Japan;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Artificial structures; Ephyrae; Polyps; Ports; Seeding grounds;

    机译：人造结构;phy息肉;端口;播种场;

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