气候变化领域集成服务门户(CCPortal): Effects of CO2-driven ocean acidification on early life stages of marine medaka (Oryzias melastigma)

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.848420
	Effects of CO2-driven ocean acidification on early life stages of marine medaka (Oryzias melastigma)
	Mu; J; Jin; F; Wang; J Y; Zheng; N; Cong; Y
发布日期	2015-07-23
数据集类型	dataset
英文关键词	Animalia ; Behaviour ; Bottles or small containers/Aquaria ( 20 L) ; Chordata ; Development ; Growth/Morphology ; Laboratory experiment ; Laboratory strains ; Mortality/Survival ; Nekton ; Not applicable ; Oryzias melastigma ; Pelagos ; Reproduction ; Single species
英文简介	The potential effects of elevated CO2 level and reduced carbonate saturation state in marine environment on fishes and other non-calcified organisms are still poorly known. In present study, we investigated the effects of ocean acidification on embryogenesis and organogenesis of newly hatched larvae of marine medaka (Oryzias melastigma) after 21 d exposure of eggs to different artificially acidified seawater (pH 7.6 and 7.2, respectively), and compared with those in control group (pH 8.2). Results showed that CO2-driven seawater acidification (pH 7.6 and 7.2) had no detectable effect on hatching time, hatching rate, and heart rate of embryos. However, the deformity rate of larvae in pH 7.2 treatment was significantly higher than that in control treatment. The left and right sagitta areas did not differ significantly from each other in each treatment. However, the mean sagitta area of larvae in pH 7.6 treatment was significantly smaller than that in the control (p = 0.024). These results suggest that although marine medaka might be more tolerant of elevated CO2 than some other fishes, the effect of elevated CO2 level on the calcification of otolith is likely to be the most susceptibly physiological process of pH regulation in early life stage of marine medaka.
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/216991
推荐引用方式 GB/T 7714	Mu,J,Jin,et al. Effects of CO2-driven ocean acidification on early life stages of marine medaka (Oryzias melastigma).2015-07-23.https://doi.org/10.1594/PANGAEA.848420.