Title
Carbon and Nitrogen Contents Driven by Organic Matter Source within Pichavaram Wetland Sediments
Date Issued
01 January 2022
Access level
open access
Resource Type
journal article
Author(s)
Naidu S.A.
Kathiresan K.
Simonson J.H.
Blanchard A.L.
Sanders C.J.
Post R.M.
Subramoniam T.
Naidu R.A.
Narender R.
Publisher(s)
MDPI
Abstract
Differences in grain size, total organic carbon (OC), total nitrogen (TN), OC/TN ratios, and stable isotope (δ13C and δ15N) were assessed in sediments from areas covered by mangrove and saltmarsh vegetation within Pichavaram estuary (Southeast India). The mean percentage contents of silt and clays (70 vs. 19%), OC (5.7 vs. 2.0%), and TN (0.39 vs. 0.14%) were consistently higher in the mangrove as compared to those observed in the saltmarsh tidal zone. These differences may obey the higher deposition and retention of fine particles in the presence of a mangrove root system that may facilitate the accumulation and preservation of organic matter within these sedimentary systems. Further, higher OC and TN contents were associated to higher terrestrial or mangrove-derived organic matter contribution with lighter δ13C signatures (−26.0‰) in both sedimentary tidal zones, whereas lower OC and TN contents were associated to heavier δ13C signatures. This study is in agreement with previous studies which indicate that the presence of wetland vegetation may increase the carbon and nutrient storage capacity within estuarine ecosystems, highly relevant information for the establishment of further conservation strategies for blue carbon ecosystems at global scales.
Volume
10
Issue
1
Language
English
OCDE Knowledge area
Ciencias de la Tierra, Ciencias ambientales
Ingeniería ambiental
Subjects
Scopus EID
2-s2.0-85122879094
Source
Journal of Marine Science and Engineering
ISSN of the container
20771312
Sponsor(s)
Acknowledgments: This study was part of collaborative research developed in a MOU between the University of Alaska Fairbanks (UAF) and Sathyabama University (SU, Chennai). The study was coordinated by Dean Sashiprabha (SU), Mike Castellini (former Dean, UAF/SFOS), Donna Anger (Director, UAF International Program) and R. V. Rama Rao. At SU, board, lodge, and transport were supported by Chancellor Jeppiaar and arranged by Dean Sashiprabha. The field logistics were provided by CASMB, Annamalai University, Parangipettai. Isotope analysis was by Tim Howe and Norma Haubenstock at the UAF/INE Isotope Laboratory and funded by (UAF/SFOS). C.J.S. is supported by the Australian Research Council (DE160100443, DP150103286 and LE140100083). A.P. was supported by the “Fondo Nacional de Desarrollo Científico Tecnológico y de Innovación Tecnológica” (FONDECYT-PERU) thought the Magnet program (Grant n◦ 007-2017-FONDECYT) and the “Incorporación de Investigadores” program (Grant n◦ E038-2019-02-FONDECYT-BM).
This study was part of collaborative research developed in a MOU between the University of Alaska Fairbanks (UAF) and Sathyabama University (SU, Chennai). The study was coordinated by Dean Sashiprabha (SU), Mike Castellini (former Dean, UAF/SFOS), Donna Anger (Director, UAF International Program) and R. V. Rama Rao. At SU, board, lodge, and transport were supported by Chancellor Jeppiaar and arranged by Dean Sashiprabha. The field logistics were provided by CASMB, Annamalai University, Parangipettai. Isotope analysis was by Tim Howe and Norma Haubenstock at the UAF/INE Isotope Laboratory and funded by (UAF/SFOS). C.J.S. is supported by the Australian Research Council (DE160100443, DP150103286 and LE140100083). A.P. was supported by the ?Fondo Nacional de Desarrollo Cient?fico Tecnol?gico y de Innovaci?n Tecnol?gica? (FONDECYT-PERU) thought the Magnet program (Grant n? 007-2017-FONDECYT) and the ?Incorporaci?n de Investigadores? program (Grant n? E038-2019-02-FONDECYT-BM).
Sources of information:
Directorio de Producción Científica
Scopus