Details

Autor(en) / Beteiligte

• Zhang, Xiaomei
• Zhou, Yi
• Liu, Peng
• Wang, Feng
• Liu, Bingjian
• Liu, Xujia
• Yang, Hongsheng

Titel

Temporal pattern in biometrics and nutrient stoichiometry of the intertidal seagrass Zostera japonica and its adaptation to air exposure in a temperate marine lagoon (China): Implications for restoration and management

Ist Teil von

• Marine pollution bulletin, 2015-05, Vol.94 (1-2), p.103-113

Ort / Verlag

England: Elsevier Ltd

Erscheinungsjahr

2015

Quelle

MEDLINE

Beschreibungen/Notizen

• •An annual survey of biometrics and nutrient features of Z. japonica in a lagoon.•SGR might be a good parameter for assessing growth status of seagrass population.•N and P contents in rhizome were significantly lower than those in leaf and leaf sheath.•Z. japonica was featured to be capable of adapting to the intertidal harsh environments.•Transplant of sectioned rhizomes would be a potential way for Z. japonica restoration. In coastal areas of China, the seagrass Zostera japonica has drastically decreased in the past decades. Swan Lake is an exception, where we found extensive areas of Z. japonica beds. The growth of Z. japonica in the lagoon exhibited strong seasonal variation. The maximum shoot density of 9880±2786shootsm−2 occurred in August. The maximum specific growth rate (SGR) of 4.99±1.99%⋅d−1 was recorded in June 2012. SGR might be a good parameter for assessing the growth status of Z. japonica population. N and P contents in the rhizome were significantly lower than those in the leaf and leaf sheath. Lower C/P ratios suggested P enrichment of the seagrass. The occurrence of Z. japonica in Swan Lake was featured by adapting to the intertidal harsh environments. The transplantation method using sectioned rhizomes would be a potential way for restoration of degraded Z. japonica beds. The establishment of the Rongcheng Swan National Nature Reserve in China has contributed to the survival and expansion of Z. japonica in Swan Lake.