Seed bank dynamics and quality in the seagrass Halophila ovalis along estuarine salinity gradients-a case in the Swan-Canning Estuary

doi:10.3389/fmars.2022.1025615

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

	Seed bank dynamics and quality in the seagrass Halophila ovalis along estuarine salinity gradients-a case in the Swan-Canning Estuary
	Gu, Ruiting 1,2; Statton, John 3,4; Rahmawati, Susi 5; Hovey, Renae 3,4; Zhou, Yi 6; Tang, Jianwu 1,2; Yu, Shuo 7; Kendrick, Gary A.3,4
刊名	FRONTIERS IN MARINE SCIENCE
	2022-11-22
卷号	9 页码:13
关键词	seed viability salinity seasonal variation seed spatial dispersion X-ray
DOI	10.3389/fmars.2022.1025615
通讯作者	Tang, Jianwu(jwtang@sklec.ecnu.edu.cn)
英文摘要	The seed bank of Halophila ovalis is crucial for resilience to disturbance through re-establishment. Understanding seasonal changes in abundance and quality of seeds in natural seed banks is critical for seed-based restoration. We selected an estuary in southwestern Australia and investigated the seasonal changes of seed distribution and viability in H. ovalis seed banks. We also adapted an X-ray viability test used for terrestrial seeds to test the viability of H. ovalis seeds. We then simulated the effect of low salinity on seed viability through a short-term indoor experiment. Seed density was significantly different between sites and seasons (0 to 43590 seeds center dot m(-2)), and the highest seed density in the seed banks was found after the reproductive season (May). The proportion of viable seeds in the seed bank was less than 22%, and was not subjected to substantial seasonal variability. The density of seeds in the seed bank decreased in spring, which indicated winter conditions were not prompt seed loss. We also predicted that extreme rainfall events and the resulting extremely low salinity would significantly reduce seed viability, and could decrease in seed germination; limit population recruitment. As it rapidly colonizes marine sediments from seeds, H. ovalis was considered an ideal seagrass for restoration purposes. Our results provide physiological information for H. ovalis seed banks to support seed-based restoration plans. Such understanding would enable accurate predictions about seagrass population resilience to extreme climate events in estuaries, where variable and extremely low salinity may limit seagrass population recovery from seeds through decreasing their viability.
资助项目	National Natural Science Foundation of China[42141016] ; Guangxi Natural Science Foundation[2019GXNSFBA185033] ; Australian Research Council Linage grant[LP160101011]
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
语种	英语
出版者	FRONTIERS MEDIA SA
WOS记录号	WOS:000893631400001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/180207]
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	Tang, Jianwu
作者单位	1.East China Normal Univ, Inst Ecochongming, Shanghai, Peoples R China 2.East China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai, Peoples R China 3.Univ Western Australia, Sch Biol Sci, Crawley, WA, Australia 4.Univ Western Australia, Oceans Inst, Crawley, WA, Australia 5.Badan Riset dan Inovasi Nasl, Pusat Riset Oseanog, Jakarta, Indonesia 6.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 7.Minist Nat Resources, Inst Oceanog 4, Key Lab Trop Marine Ecosyst & Bioresource, Beihai, Peoples R China
推荐引用方式 GB/T 7714	Gu, Ruiting,Statton, John,Rahmawati, Susi,et al. Seed bank dynamics and quality in the seagrass Halophila ovalis along estuarine salinity gradients-a case in the Swan-Canning Estuary[J]. FRONTIERS IN MARINE SCIENCE,2022,9:13.
APA	Gu, Ruiting.,Statton, John.,Rahmawati, Susi.,Hovey, Renae.,Zhou, Yi.,...&Kendrick, Gary A..(2022).Seed bank dynamics and quality in the seagrass Halophila ovalis along estuarine salinity gradients-a case in the Swan-Canning Estuary.FRONTIERS IN MARINE SCIENCE,9,13.
MLA	Gu, Ruiting,et al."Seed bank dynamics and quality in the seagrass Halophila ovalis along estuarine salinity gradients-a case in the Swan-Canning Estuary".FRONTIERS IN MARINE SCIENCE 9(2022):13.