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Authors Yue, SD; Zhou, Y; Zhang, Y; Xu, SC; Gu, RT; Xu, S; Zhang, XM; Zhao, P
Author Full Name Yue, Shidong; Zhou, Yi; Zhang, Yu; Xu, Shaochun; Gu, Ruiting; Xu, Shuai; Zhang, Xiaomei; Zhao, Peng
Title Effects of salinity and temperature on seed germination and seedling establishment in the endangered seagrass Zostera japonica Asch. & Graebn. in northern China
Source MARINE POLLUTION BULLETIN
Language English
Document Type Article
Author Keywords Seagrass; Zostera japonica; Seed germination; Seedling establislunent; Salinity; Temperature; Restoration
Keywords Plus MARINA EELGRASS; GENETIC DIVERSITY; RESTORATION; CONSERVATION; CONNECTIVITY; ADAPTATION; ECOSYSTEMS; RESPONSES; EXPOSURE; HABITAT
Abstract Seagrass meadows are recognized as critical and among the most vulnerable habitats on the planet. As a worldwide concern, there is an urgent need to develop techniques to restore and preserve these vital coastal ecosystems due to their alarming decline rate. To effectively preserve and restore seagrasses, more research is required on the germination ecology of seeds. The seagrass Zostera japonica Asch. & Graebn is an endangered species in its native range, the Northwestern Pacific Coast. The present study investigated the germination and seedling establishment in Z. japonica seeds (collected from northern China) under different temperature and salinity conditions to explore suitable seed germination and establishment conditions, as well as the seedling formation process. Results showed that salinity had a more significant influence on seed germination rate. Germination rate decreased with an increase in salinity, and seeds did not germinate when salinity was higher than 40 psu. Temperature was more likely to influence germination speed, which increased with an increase in temperature, with high germination rates and the most rapid germination speed observed at 30 degrees C. Therefore, the optimal culture conditions were 10 psu salinity at 30 degrees C for germination and 10-20 psu salinity at 20 degrees C for seedling establishment, with a seed germination rate of 45.6% after 6 days of germination culture and a seedling establishment rate of 14.3% after 6 days of seedling culture, respectively. A new seedling raising method with low salinity (5 psu) germination and high salinity (20 psu) seedling establishment was proposed and a flow chart of seedling formation of Z. japonica was created. The results provide insight into the seed germination and seedling establishment in Z. japonica, and will facilitate future large-scale seedling culture and field restoration activities for this seagrass species.
Author Address [Yue, Shidong; Zhou, Yi; Zhang, Yu; Xu, Shaochun; Gu, Ruiting; Xu, Shuai; Zhang, Xiaomei] Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Shandong, Peoples R China; [Yue, Shidong; Zhou, Yi; Zhang, Yu; Xu, Shaochun; Gu, Ruiting; Xu, Shuai; Zhang, Xiaomei] Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266237, Shandong, Peoples R China; [Yue, Shidong; Zhang, Yu; Xu, Shaochun; Gu, Ruiting; Xu, Shuai] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Zhou, Yi; Zhang, Xiaomei] Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Shandong, Peoples R China; [Zhao, Peng] State Ocean Adm, Inst Oceanog 4, Beihai, Peoples R China
Reprint Address Zhou, Y (corresponding author), Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Shandong, Peoples R China.
E-mail Address yizhou@qdio.ac.cn
ResearcherID Number Zhou, Yi/F-4219-2011
ORCID Number Zhou, Yi/0000-0001-7300-0173
Funding Agency and Grant Number National Key Research and Development Program of China [2017YFF0206905]; Key Research and Development Plan of Shandong Province [2017GHY15111]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41606192/41176140]; National Science & Technology Basic Work Program [2015FY110600]; Key Research Project of Frontier Sciences of CAS [QYZDB-SSW-DQC041-1]; NSFC-Shandong Joint Fund for Marine Science Research Centers [U1606404]; Science and Technology Service Network Initiative of CAS [KFJ-STS-ZDTP-023]; Taishan Scholar Project of Shandong Province (Distinguished Taishan Scholars); Creative Team Project of the Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology [LMEES-CTSP-2018-1]
Funding Text We would like to thank Xiaoyue Song for the help in the field survey. This research was supported by the National Key Research and Development Program of China (2017YFF0206905), the Key Research and Development Plan of Shandong Province (2017GHY15111), the National Natural Science Foundation of China (Nos. 41606192/41176140), the National Science & Technology Basic Work Program (2015FY110600), the Key Research Project of Frontier Sciences of CAS (QYZDB-SSW-DQC041-1), the NSFC-Shandong Joint Fund for Marine Science Research Centers (No. U1606404), the Science and Technology Service Network Initiative of CAS (KFJ-STS-ZDTP-023), the Taishan Scholar Project of Shandong Province (Distinguished Taishan Scholars), and the Creative Team Project of the Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology (No. LMEES-CTSP-2018-1).
Times Cited 11
Total Times Cited Count (WoS, BCI, and CSCD) 13
Publisher PERGAMON-ELSEVIER SCIENCE LTD
Publisher City OXFORD
Publisher Address THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
ISSN 0025-326X
29-Character Source Abbreviation MAR POLLUT BULL
ISO Source Abbreviation Mar. Pollut. Bull.
Publication Date SEP
Year Published 2019
Volume 146
Beginning Page 848
Ending Page 856
Digital Object Identifier (DOI) 10.1016/j.marpolbul.2019.07.037
Page Count 9
Web of Science Category Environmental Sciences; Marine & Freshwater Biology
Subject Category Environmental Sciences & Ecology; Marine & Freshwater Biology
Document Delivery Number JC0VX
Unique Article Identifier WOS:000488999000095
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