NDLI: Temporal variation of intertidal seagrass in southern China (2008

Content Provider	Springer Nature Link
Author	Qiu, Guanglong Short, Frederick T. Fan, Hangqing Liu, Guohua
Copyright Year	2017
Abstract	Understanding the temporal dynamics of seagrasses and the major influences on seagrass growth is critical for seagrass habitat conservation and administration. However, little work has been done regarding these issues in southern China. To examine inter-annual and seasonal variations of the intertidal Halophila ovalis community in southern China, we conducted quarterly sampling using the SeagrassNet methodology and assessed environmental conditions as well as direct anthropogenic impacts on the seagrass meadow from July 2008 to October 2014. Our study demonstrated strong inter-annual and seasonal dynamics of the intertidal seagrass meadow in the study area. Generally, the community performed best (highest seagrass cover, leaf area, shoot density, total biomass) in summer and worst in spring among the 4 seasons. The temporal variations in the seagrass community attributes (e.g. above-ground biomass) were significantly affected by precipitation, atmospheric visibility, and salinity, while leaf width was significantly negatively correlated with temperature, atmospheric visibility and salinity. Temperature was a major factor influencing the seagrass community (both macroalgae and seagrass), with temperature data showing an inverse relationship between seagrass and macroalgae. The above-ground: below-ground biomass ratio and leaf width of H. ovalis were the most sensitive plant parameters monitored when assessing environmental interactions. Human physical disturbances did not have a significant effect on seagrass dynamics in the study area. We concluded that long-term monitoring (like SeagrassNet) is valuable in understanding the relationship between environmental variables and seagrasses.
Starting Page	397
Ending Page	410
Page Count	14
File Format	PDF
ISSN	17385261
Journal	Ocean Science Journal
Volume Number	52
Issue Number	3
e-ISSN	20057172
Language	English
Publisher	Korea Institute of Ocean Science and Technology and the Korean Society of Oceanography
Publisher Date	2017-07-05
Publisher Place	Seoul
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	SeagrassNet Halophila ovalis seasonality seagrass monitoring human disturbance seagrass dynamics Oceanography Marine & Freshwater Sciences Waste Water Technology Water Pollution Control Water Management Aquatic Pollution
Content Type	Text
Resource Type	Article
Subject	Oceanography

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