气候变化领域集成服务门户(CCPortal): Spatial community shift from hard to soft corals in acidified water

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.836787
	Spatial community shift from hard to soft corals in acidified water
	Inoue; Shihori; Kayanne; Hajime; Yamamoto; Shoji; Kurihara; Haruko
发布日期	2013-10-16
数据集类型	dataset
英文关键词	Animalia ; Benthic animals ; Benthos ; Biomass/Abundance/Elemental composition ; Bottles or small containers/Aquaria ( 20 L) ; Calcification/Dissolution ; Cnidaria ; Coast and continental shelf ; Laboratory experiment ; North Pacific ; Primary production/Photosynthesis ; Sarcophyton elegans ; Single species ; Temperate
英文简介	Anthropogenic increases in the partial pressure of CO2 (pCO2) cause ocean acidification, declining calcium carbonate saturation states, reduced coral reef calcification and changes in the compositions of marine communities. Most projected community changes due to ocean acidification describe transitions from hard coral to non-calcifying macroalgal communities; other organisms have received less attention, despite the biotic diversity of coral reef communities. We show that the spatial distributions of both hard and soft coral communities in volcanically acidified, semi-enclosed waters off Iwotorishima Island, Japan, are related to pCO2 levels. Hard corals are restricted to non-acidified low- pCO2 (225 µatm) zones, dense populations of the soft coral Sarcophyton elegans dominate medium- pCO2 (831 µatm) zones, and both hard and soft corals are absent from the highest- pCO2 (1,465 µatm) zone. In CO2-enriched culture experiments, high- pCO2 conditions benefited Sarcophyton elegans by enhancing photosynthesis rates and did not affect light calcification, but dark decalcification (negative net calcification) increased with increasing pCO2. These results suggest that reef communities may shift from reef-building hard corals to non-reef-building soft corals under pCO2 levels (550-970 µatm) predicted by the end of this century, and that higher pCO2 levels would challenge the survival of some reef organisms.
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/233713
推荐引用方式 GB/T 7714	Inoue,Shihori,Kayanne,et al. Spatial community shift from hard to soft corals in acidified water.2013-10-16.https://doi.org/10.1594/PANGAEA.836787.