• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>PLoS Clinical Trials >Abrolhos Bank Reef Health Evaluated by Means of Water Quality, Microbial Diversity, Benthic Cover, and Fish Biomass Data
【2h】

Abrolhos Bank Reef Health Evaluated by Means of Water Quality, Microbial Diversity, Benthic Cover, and Fish Biomass Data

机译：通过水质，微生物多样性，底栖生物覆盖度和鱼类生物量数据评估阿波罗罗斯银行礁的健康状况

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The health of the coral reefs of the Abrolhos Bank (southwestern Atlantic) was characterized with a holistic approach using measurements of four ecosystem components: (i) inorganic and organic nutrient concentrations, fish biomass, macroalgal and coral cover and (iv) microbial community composition and abundance. The possible benefits of protection from fishing were particularly evaluated by comparing sites with varying levels of protection. Two reefs within the well-enforced no-take area of the National Marine Park of Abrolhos (Parcel dos Abrolhos and California) were compared with two unprotected coastal reefs (Sebastião Gomes and Pedra de Leste) and one legally protected but poorly enforced coastal reef (the “paper park” of Timbebas Reef). The fish biomass was lower and the fleshy macroalgal cover was higher in the unprotected reefs compared with the protected areas. The unprotected and protected reefs had similar seawater chemistry. Lower vibrio CFU counts were observed in the fully protected area of California Reef. Metagenome analysis showed that the unprotected reefs had a higher abundance of archaeal and viral sequences and more bacterial pathogens, while the protected reefs had a higher abundance of genes related to photosynthesis. Similar to other reef systems in the world, there was evidence that reductions in the biomass of herbivorous fishes and the consequent increase in macroalgal cover in the Abrolhos Bank may be affecting microbial diversity and abundance. Through the integration of different types of ecological data, the present study showed that protection from fishing may lead to greater reef health. The data presented herein suggest that protected coral reefs have higher microbial diversity, with the most degraded reef (Sebastião Gomes) showing a marked reduction in microbial species richness. It is concluded that ecological conditions in unprotected reefs may promote the growth and rapid evolution of opportunistic microbial pathogens.
机译：通过对生态系统的四个组成部分进行测量，采用整体方法来表征阿伯罗洛斯银行（西南大西洋）的珊瑚礁的健康状况：（i）无机和有机养分浓度，鱼类生物量，大型藻类和珊瑚覆盖率以及（iv）微生物群落组成和丰富。通过比较保护水平不同的地点，特别评估了保护免受捕捞的可能利益。比较了阿伯罗霍斯国家海洋公园（Parcel dos Abrolhos和加利福尼亚）严格执行的禁区内的两个礁石，两个未受保护的沿海礁石（SebastiãoGomes和Pedra de Leste）和一个受到法律保护但执行不力的沿海礁石（廷贝巴斯礁的“纸公园”）。与保护区相比，未保护珊瑚礁的鱼类生物量较低，肉质大藻类覆盖度较高。未保护和受保护的珊瑚礁具有相似的海水化学性质。在加利福尼亚礁的完全保护区中观察到较低的弧菌CFU计数。元基因组分析表明，未保护的珊瑚礁具有较高的古细菌和病毒序列丰度，且细菌病原体较多，而受保护的珊瑚礁具有与光合作用相关的基因丰富度。与世界上其他珊瑚礁系统类似，有证据表明，草食鱼的生物量减少以及随之而来的阿伯罗霍斯银行大藻类覆盖物的增加可能会影响微生物的多样性和丰度。通过整合不同类型的生态数据，本研究表明，免受捕捞可能会导致更大的珊瑚礁健康。本文提供的数据表明，受保护的珊瑚礁具有更高的微生物多样性，其中降解程度最高的珊瑚礁（SebastiãoGomes）显示出微生物物种丰富度的显着降低。结论是未受保护的珊瑚礁中的生态条件可能促进机会性微生物病原体的生长和快速进化。

著录项

相似文献

  • 外文文献
  • 专利
代理获取

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