...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >A comparison of epibenthic reef communities settling on commonly used experimental substrates: PVC versus ceramic tiles
【24h】

A comparison of epibenthic reef communities settling on commonly used experimental substrates: PVC versus ceramic tiles

机译：在常用实验基质上沉积的表皮珊瑚礁群落的比较：PVC与瓷砖

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Artificial substrates are routinely used in coral reef research to model the recruitment and growth responses of benthic organisms (e.g. coral recruitment and encrusting organisms) to environmental change. Two commonly used, but structurally different, artificial substrates include cylindrical PVC pipes and flat ceramic tiles. Various ecosystem based models extrapolate data from these substrates interchangeably based on the assumption that results are directly comparable. In order to test this assumption we deployed these commonly used artificial substrate materials, PVC poles and ceramic tiles, in shallow patch reefs for 34 months at One Tree Island, Great Barrier Reef. Tiles were positioned to mimic upwards facing, well-lit substrates (exposed), and downwards facing, shaded (cryptic) substrates. Multivariate analyses demonstrated that the community composition differed significantly between all three treatments. The majority of artificial substrate, coral reef experiments focus on key groups of calcifying organisms, primarily: coralline algae, scleractinian coral and/or total calcareous encruster cover. Interestingly, significant differences in the recruitment, colonisation and community composition of these organisms were detected for our three treatments. When compared to ceramic tiles, PVC poles had greater coverage of crustose coralline algae but reduced levels of coral recruits (<1 mm diameter) and turf algae. We suggest that comparisons between studies that utilise data from different substrate types should be used with caution. Additionally, large scale modelling and forecasting exercises utilising these data sets should adjust for the inherent biases of each method. (C) 2016 Elsevier B.V. All rights reserved.
机译：人造基质通常用于珊瑚礁研究，以模拟底栖生物对环境变化的募集和生长反应（例如珊瑚募集和结壳生物）。两种常用但在结构上不同的人造基材包括圆柱形PVC管和扁平瓷砖。各种基于生态系统的模型基于结果可直接比较的假设，可互换地从这些底物推断数据。为了检验这一假设，我们在大堡礁的One Tree Island的浅片礁中部署了这些常用的人造基材，PVC杆和瓷砖，历时34个月。放置瓷砖的位置应模仿朝上，光线充足的基材（暴露）和朝下的阴影（隐蔽）基材。多变量分析表明，三种治疗之间的群落组成均存在显着差异。大多数人工底物，珊瑚礁实验都集中在钙化生物的关键类别上，主要是：珊瑚藻，巩膜珊瑚和/或钙质硬壳覆盖物。有趣的是，对于我们的三种治疗方法，在这些生物的募集，定植和群落组成方面存在显着差异。与瓷砖相比，PVC杆对地壳珊瑚藻的覆盖率更高，但是对珊瑚新兵（直径小于1毫米）和草皮藻的含量降低了。我们建议应谨慎使用利用不同底物类型数据的研究之间的比较。此外，利用这些数据集的大规模建模和预测练习应针对每种方法的固有偏差进行调整。 （C）2016 Elsevier B.V.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号