期刊
MARINE POLLUTION BULLETIN
卷 169, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2021.112522
关键词
Gut microbiome; Coral reefs; Fish; Nutrient enrichment; Stegastes nigricans; South Pacific
资金
- Ecology and Evolutionary Biology Department at the University of California Los Angeles
- National Science Foundation [1243541]
- HHMI Professor award
- Office Of Internatl Science &Engineering
- Office Of The Director [1243541] Funding Source: National Science Foundation
Human-induced nutrient pollution poses a threat to coral reefs globally. A study investigated the effects of eutrophication on the gut microbiomes of herbivorous fishes, particularly the black damselfish, revealing significant changes in alpha diversity and composition in nutrient-enriched territories. Interestingly, these changes were not observed in the algae consumed by the fish, highlighting the autochthonous nature of gut microbiome shifts in response to simulated anthropogenic stress.
Human-induced nutrient pollution threatens coral reefs worldwide. Although eutrophication disrupts coral microbiomes, often leading to coral mortality, it is unknown whether eutrophication impacts the microbiomes of other coral reef organisms. Of particular interest are herbivorous fishes, whose algae consumption is critical in maintaining healthy corals. To examine the effects of eutrophication on fish gut microbiomes, we experimentally enriched territories of Stegastes nigricans, a predominantly herbivorous damselfish that farms turf algae. Using 16S RNA sequencing, we demonstrate that hindgut and foregut microbiomes have significantly higher alpha diversity in nutrient-enriched territories as compared to unenriched controls. S. nigricans gut microbiomes also exhibited significantly different compositions across treatments. In contrast, these changes were not observed in the microbiomes of the turf algae consumed by S. nigricans, indicating that the gut microbiome changes were autochthonous. Combined, our results provide a novel example of endogenous microbial shifts in wild vertebrates caused by simulated anthropogenic stress.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据