Hyposalinity and incremental micro-zooplankton supply in early-developed Nemopilema nomurai polyp survival, growth, and podocyst reproduction

doi:10.3354/meps12204

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋生态与环境科学重点实验室

	Hyposalinity and incremental micro-zooplankton supply in early-developed Nemopilema nomurai polyp survival, growth, and podocyst reproduction
	Feng, Song1,2 ; Lin, Jianing3,4 ; Sun, Song1,2,5,6 ; Zhang, Fang 1,2; Li, Chaolun1,2
刊名	MARINE ECOLOGY PROGRESS SERIES
	2018-03-19
卷号	591 页码:117-128
关键词	Polyps Low salinity Survival Growth Podocyst reproduction
ISSN号	0171-8630
DOI	10.3354/meps12204
通讯作者	Sun, Song(sunsong@qdio.ac.cn)
英文摘要	Early-developed polyps of the giant jellyfish Nemopilema nomurai that are sexually produced during the rainy season form the principal recruitment for benthic population stages, regulating the mass outbreaks of medusae that occur in east Asian marginal seas. Their survival, development and subsequent asexual reproduction are likely facilitated by hyposaline seawater and potentially enhanced micro-zooplankton around the estuaries that comprise the major nurseries of medusae. In this study, 8-tentacled polyps that developed from planulae were incubated at 11 salinities from low to high (8, 11, 13, 15, 18, 20, 23, 25, 28, 31, 33) with 3 feeding frequencies (once every 3 d, once every 9 d, unfed; Brachionus plicatilis concentration: 0.16 mg C l(-1)) at a constant temperature (19 degrees C). Survival rate of early-developed polyps increased 3-fold at salinities 11 to 20, > 80% greater than at salinities 25 to 33. The composition of fully developed polyps, somatic growth, and podocyst diameter positively depended on food supply, except at salinity 8. The potential podocyst production of polyp colonization reached normal peak at salinity 20 in the group that was fed once every 3 d. Excystments were significantly restricted at salinity < 20. These findings confirm that estuarine areas with salinities from 11 to 20 are appropriate for N. nomurai polyp colonization, where prospectively increasing micro-zooplankton supply rooted in frequent eutrophication may benefit polyps. An asexual reproduction strategy also corresponded with autumn salinity fluctuations. The intensity of diluted water and monsoonal rainfall, as well as plankton supply around the estuaries in autumn may fundamentally affect polyp abundance and size, determining the population size of medusae in the following spring.
资助项目	State Key Program of National Natural Science of China[41230963] ; Aoshan Science and Technology Innovation Project[2016ASKJ02-2] ; Shandong Joint Fund for Marine Ecology and Environmental Sciences[U1606404] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA11020305] ; National Key Research and Development Program of China[2017YFC1404405] ; National Natural Science Foundation of China[41706127]
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Oceanography
语种	英语
出版者	INTER-RESEARCH
WOS记录号	WOS:000428818100010
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/157589]
专题	海洋研究所_海洋生态与环境科学重点实验室
通讯作者	Sun, Song
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 3.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China 4.Chinese Res Inst Environm Sci, Lab Riverine Ecol Conservat & Technol, Beijing 100012, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, Jiaozhou Bay Marine Ecosyst Res Stn, Qingdao 266071, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Feng, Song,Lin, Jianing,Sun, Song,et al. Hyposalinity and incremental micro-zooplankton supply in early-developed Nemopilema nomurai polyp survival, growth, and podocyst reproduction[J]. MARINE ECOLOGY PROGRESS SERIES,2018,591:117-128.
APA	Feng, Song,Lin, Jianing,Sun, Song,Zhang, Fang,&Li, Chaolun.(2018).Hyposalinity and incremental micro-zooplankton supply in early-developed Nemopilema nomurai polyp survival, growth, and podocyst reproduction.MARINE ECOLOGY PROGRESS SERIES,591,117-128.
MLA	Feng, Song,et al."Hyposalinity and incremental micro-zooplankton supply in early-developed Nemopilema nomurai polyp survival, growth, and podocyst reproduction".MARINE ECOLOGY PROGRESS SERIES 591(2018):117-128.