...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Brazilian Journal of Oceanography >Colonization and growth of crustose coralline algae (Corallinales, Rhodophyta) on the Rocas Atoll
【24h】

Colonization and growth of crustose coralline algae (Corallinales, Rhodophyta) on the Rocas Atoll

机译：罗卡斯环礁上的硬壳珊瑚藻类藻类（Corallinales，Rhodophyta）的定殖和生长

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Crustose coralline algae play a fundamental role in reef construction all over the world. The aims fo this study were to identify and estimate the abundance of the dominant crustose coralline algae in shallow reef habitats, measuring their colonization, growth rates and productivity. Crusts sampled from different habitats were collected on leeward and windward reefs. Discs made of epoxy putty were fixed on the reef surface to follow coralline colonization and discs containing the dominant coralline algae were fixed on different habitats to measure the crusts' marginal growth. The primary production experiments followed the clear and dark bottle method for dissolved oxygen reading. Porolithon pachydermum was confirmed as the dominant crustose coralline alga on the Rocas Atoll. The non-cryptic flat form of P. pachydermum showed a faster growth rate on the leeward than on the windward reef. This form also had a faster growth rate on the reef crest (0.05 mm.day-1) than on the reef flat (0.01 mm.day-1). The cryptic protuberant form showed a trend, though not significant, towards a faster growth rate on the reef crest and in tidal pools than on the reef flat. Colonization was, in general, very slow as compared to that presented by other reef studies. P. pachydermum was a productive crust both in non-cryptic and cryptic habitats.
机译：全世界范围内，地壳珊瑚藻类在珊瑚礁建设中发挥着重要作用。这项研究的目的是确定和评估浅礁生物栖息地中主要的甲壳类珊瑚藻的丰度，测量其定殖，生长速率和生产力。从不同生境采样的地壳被收集在背风和迎风礁上。将环氧腻子制成的圆盘固定在珊瑚礁表面，以跟随珊瑚礁定居，并将含有优势珊瑚藻的圆盘固定在不同的生境中，以测量地壳的边缘生长。最初的生产实验遵循透明和深色瓶法读取溶解氧。在罗卡斯环礁中，Porolithon pachydermum被确认为主要的硬壳珊瑚藻。 P. pachydermum的非神秘扁平形式在下风处显示出比在顺风礁上更快的生长速度。这种形式在礁顶（0.05 mm.day-1）上的生长速度也比在礁滩（0.01 mm.day-1）上的生长速率快。隐匿的隆起形式显示出一种趋势，尽管并不显着，但其趋势是在礁顶和潮汐池中比在礁滩上更快。通常，与其他珊瑚礁研究相比，定殖非常缓慢。在非隐性和隐性生境中，P。pachydermum都是有生产力的外壳。

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