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- Title
Seasonal flux variability of planktonic foraminifera during 2009–2011 in a sediment trap from Xisha Trough, South China Sea.
- Authors
Xiang, Rong; Liu, Jianguo; Wang, Dongxiao; Chen, Muhong; Han, Chen; Chen, Zhong; Yan, Wen; Tang, Shilin
- Abstract
The flux and seasonality of planktonic foraminifera were studied through a time-series sediment trap deployed in the Xisha Trough, South China Sea from June 2009 to August 2011. The general flux pattern for planktonic foraminifera showed high values during the winter half-year/season (from late September/October to February) and low flux during the rest of the year. This flux pattern contrasts with the bimodal pattern in the central and southern South China Sea, which shows two high flux peaks corresponding to the prevailing summer and winter monsoon periods, respectively. Apparent interannual flux differences, which may be related to the climate change from an El Niño year to a La Niña year, were observed. Monsoonal driven seasonality is most prominent inPulleniatina obliquiloculata, Neogloboquadrina dutertreiandGlobigerina bulloides, with over 80% of their species-specific fluxes (93% forG. bulloides) occurring from late September/October to February.Globigerinoides sacculiferandGlobigerinoides rubershow similar seasonality, generally following the trend of the total flux of planktonic foraminifer.G. bulloidesmay have the potential to be developed as a winter proxy-species.Globigerinoides conglobatusmostly appears in June to August and can be developed as a summer proxy-species.
- Subjects
PLANKTON; SEASONAL physiological variations; FORAMINIFERA; MAGNETIC flux; FLUX (Energy); BIOLOGICAL variation
- Publication
Aquatic Ecosystem Health & Management, 2015, Vol 18, Issue 4, p403
- ISSN
1463-4988
- Publication type
Article
- DOI
10.1080/14634988.2015.1116897