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The role of microzooplankton grazing in the microbial food web of a tropical mangrove estuary.
- Source :
-
Estuarine Coastal & Shelf Science . Sep2022, Vol. 275, pN.PAG-N.PAG. 1p. - Publication Year :
- 2022
-
Abstract
- In the Matang Mangrove Forest Reserve (MMFR), the role of microzooplankton (20–200 μm) grazing on phytoplankton as a channel for carbon transfer to higher trophic levels was investigated. Our results showed that primary production was higher during the southwest monsoon (SWM) (1905 ± 1478 μgCl−1d−1) than in the northeast monsoon (NEM) (708 ± 474 μgCl−1d−1). Microzooplankton grazing was tightly coupled to primary production in both SWM and NEM, accounting for 97% and 68% of primary production, respectively. Both primary production (activation energy: 1.29 ± 0.54 eV) and microzooplankton grazing (2.05 ± 0.63 eV) showed temperature dependency, and revealed a shift towards heterotrophy with seawater warming, specifically at temperatures above 32 °C. As a conclusion, the microbial food web in MMFR is characterised by high primary production that was efficiently grazed by microzooplankton. • Relative to other tropical mangrove forests, primary production in the mangrove estuary of Matang was high. • Microzooplankton grazing was tightly coupled to primary production. • There were monsoonal differences in the classical food chain but not in the microbial loop. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02727714
- Volume :
- 275
- Database :
- Academic Search Index
- Journal :
- Estuarine Coastal & Shelf Science
- Publication Type :
- Academic Journal
- Accession number :
- 158609284
- Full Text :
- https://doi.org/10.1016/j.ecss.2022.107969