Individual and population indicators of Zostera japonica respond quickly to experimental addition of sediment-nutrient and organic matter
Han, Q.; Soissons, L.M.; Liu, D.; van Katwijk, M.; Bouma, T.J. (2017). Individual and population indicators of Zostera japonica respond quickly to experimental addition of sediment-nutrient and organic matter. Mar. Pollut. Bull. 114(1): 201-209. dx.doi.org/10.1016/j.marpolbul.2016.08.084 In: Marine Pollution Bulletin. Macmillan: London. ISSN 0025-326X; e-ISSN 1879-3363, more |  |
| Author keywords | Seagrass; Indicators; Nutrient; Organic matter; Sediment dynamics |
| Authors | | Top | - Han, Q.
- Soissons, L.M., more
- Liu, D.
| | |
| Abstract | Amanipulative field experimentwas designed to investigate the effects of sediment-nutrients and sediment-organicmatterson seagrasses, Zostera japonica, using individual and population indicators. The results showed thatseagrasses quickly responded to sediment-nutrient and organicmatter loading. That is, sediment-nutrients positivelyimpacted on seagrasses by increasing N content of leaves and roots, leaf length and belowground biomass.Sediment-organic matter loading lowered N content of seagrass leaves and belowground biomass. Negative effectsof organic matter loadingwere aggravated during nutrient loading, by decreasing Ncontent of leaves, P contentof roots, leafwidth, shoot number in the middle period of the experiment, increasing C/N ratio of leaves, C/Pand N/P ratio of roots and above to belowground biomass ratio of seagrasses. Consequently, Z. japonica could beconsidered as a fast indicator to monitor seagrass ecosystem status in the eutrophic areas and facilitate tointerpreting the response of seagrasses to multiple stressors. |
|
