Abstract
Mangroves are important carbon sinks and play a key role in the global climate system, yet tropical estuaries such as the Wouri estuary, Cameroon, remain poorly studied. This study aims to improve understanding of how organic matter varies with depth within mangrove sediments. Sediment cores were collected from two locations within the estuary: Dibamba River mangrove (DM; 3°56′14.0″N, 9°44′54.0″E) and Koo tidal creek mangrove (KM; 3°57′36.0″N, 9°38′51.0″E). Sediments were subsampled at regular depth intervals and analyzed using Loss on Ignition (LOI). Samples were dried at 105 °C for 48 hours to determine moisture content, heated at 550 °C for 4 hours to determine organic matter, and further heated at 950 °C for 2 hours to determine inorganic carbon. In DM, organic matter ranges from 30.47% to 15.73% and inorganic carbon from 0.00% to 6.54%, both varying with depth. In KM, organic matter ranges from ~24% to ~49% and varies with depth. The higher organic matter content observed in KM compared to DM indicates greater accumulation of organic material, while lower values in DM suggest reduced organic content. These differences reflect variation in the amount and distribution of organic matter between the two mangrove environments.
Faculty Advisor
Dr Henry Agbogun
Department/Program
Geosciences
Submission Type
in-person poster
Date
4-13-2026
Rights
Copyright the Author(s)
Recommended Citation
Diouf, Khady Christine
(2026)
"Depth-Dependent Variation of Organic and Inorganic Components in Mangrove Sediments: Dibamba vs Koo Mangrove,"
SACAD: Scholarly Activities: Vol. 2026, Article 104.
Available at:
https://scholars.fhsu.edu/sacad/vol2026/iss2026/104
