Bioenergetic trade-offs in the sea cucumber Apostichopus japonicus (Echinodermata: Holothuroidea) in response to CO2-driven ocean acidification

doi:10.1007/s11356-016-6071-0

	Bioenergetic trade-offs in the sea cucumber Apostichopus japonicus (Echinodermata: Holothuroidea) in response to CO2-driven ocean acidification
	Yuan, Xiutang 1; Shao, Senlin 1,2; Yang, Xiaolong 1,2; Yang, Dazuo 2; Xu, Qinzeng 3; Zong, Humin 1; Liu, Shilin 3
	2016-05-01
发表期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
卷号	23 期号:9 页码:8453-8461
文章类型	Article
摘要	Ocean acidification (OA) caused by excessive CO2 is a potential ecological threat to marine organisms. The impacts of OA on echinoderms are well-documented, but there has been a strong bias towards sea urchins, and limited information is available on sea cucumbers. This work examined the effect of medium-term (60 days) exposure to three pH levels (pH 8.06, 7.72, and 7.41, covering present and future pH variability) on the bioenergetic responses of the sea cucumber, Apostichopus japonicus, an ecologically and economically important holothurian in Asian coasts. Results showed that the measured specific growth rate linearly decreased with decreased pH, leading to a 0.42 %.day(-1) decrease at pH 7.41 compared with that at pH 8.06. The impacts of pH on physiological energetics were variable: measured energy consumption and defecation rates linearly decreased with decreased pH, whereas maintenance energy in calculated respiration and excretion were not significantly affected. No shift in energy allocation pattern was observed in A. japonicus upon exposure to pH 7.72 compared with pH 8.06. However, a significant shift in energy budget occurred upon exposure to pH 7.41, leading to decreased energy intake and increased percentage of energy that was lost in feces, thereby resulting in a significantly lowered allocation into somatic growth. These findings indicate that adult A. japonicus is resilient to the OA scenario at the end of the twenty-first century, but further acidification may negatively influence the grazing capability and growth, thereby influencing its ecological functioning as an "ecosystem engineer" and potentially harming its culture output.
关键词	Sea Cucumber Apostichopus Japonicus Ocean Acidification Energy Budget Physiology Feeding Growth
DOI	10.1007/s11356-016-6071-0
收录类别	SCI ; ISTP
语种	英语
WOS记录号	WOS:000375412600028
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
版本	出版稿
条目标识符	http://ir.qdio.ac.cn/handle/337002/131041
专题	海洋生态与环境科学重点实验室
作者单位	1.State Ocean Adm, Natl Marine Environm Monitoring Ctr, Dalian 116023, Peoples R China 2.Dalian Ocean Univ, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Yuan, Xiutang,Shao, Senlin,Yang, Xiaolong,et al. Bioenergetic trade-offs in the sea cucumber Apostichopus japonicus (Echinodermata: Holothuroidea) in response to CO2-driven ocean acidification[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2016,23(9):8453-8461.
APA	Yuan, Xiutang.,Shao, Senlin.,Yang, Xiaolong.,Yang, Dazuo.,Xu, Qinzeng.,...&Liu, Shilin.(2016).Bioenergetic trade-offs in the sea cucumber Apostichopus japonicus (Echinodermata: Holothuroidea) in response to CO2-driven ocean acidification.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,23(9),8453-8461.
MLA	Yuan, Xiutang,et al."Bioenergetic trade-offs in the sea cucumber Apostichopus japonicus (Echinodermata: Holothuroidea) in response to CO2-driven ocean acidification".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 23.9(2016):8453-8461.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Bioenergetic trade-o（511KB）	期刊论文	出版稿	限制开放	CC BY-NC-SA	浏览