TY - JOUR
T1 - Dinoflagellate cyst distribution in surface sediments of Ambon Bay (eastern Indonesia)
T2 - Environmental conditions and harmful blooms
AU - Likumahua, Sem
AU - Sangiorgi, Francesca
AU - de Boer, M. Karin
AU - Tatipatta, Willem M.
AU - Pelasula, Daniel D.
AU - Polnaya, Dominggus
AU - Hehuwat, Jance
AU - Siahaya, Donna M.
AU - Buma, Anita G. J.
N1 - Copyright © 2021 The Authors. Published by Elsevier Ltd.. All rights reserved.
PY - 2021/5
Y1 - 2021/5
N2 - The present study aimed to document dinocyst ecological preferences in Ambon Bay, Eastern Indonesia, and to investigate if the bay sediments serve as a seedbank for toxic bloom events. To this end, dinocyst and geochemical analyses of surface sediment samples were performed, along with physicochemical water column parameters. Twentythree dinocyst species were identified, and high dinocyst concentrations (up to ~12,000 cysts g-1 dry sediment) were found in the inner bay. Environmental factors such as surface water temperature and salinity generally played an important role in dinocyst distribution. The concentration of Polysphaeridium zoharyi cysts showed a strong positive correlation with phosphorus. A statistically significant correlation was also found with the concentration of other autotrophic dinocysts in the sediments, and an inverse correlation was observed with the sediment C/N ratio. Cysts may serve as seedbanks for Pyrodinium bahamense blooms in the area.
AB - The present study aimed to document dinocyst ecological preferences in Ambon Bay, Eastern Indonesia, and to investigate if the bay sediments serve as a seedbank for toxic bloom events. To this end, dinocyst and geochemical analyses of surface sediment samples were performed, along with physicochemical water column parameters. Twentythree dinocyst species were identified, and high dinocyst concentrations (up to ~12,000 cysts g-1 dry sediment) were found in the inner bay. Environmental factors such as surface water temperature and salinity generally played an important role in dinocyst distribution. The concentration of Polysphaeridium zoharyi cysts showed a strong positive correlation with phosphorus. A statistically significant correlation was also found with the concentration of other autotrophic dinocysts in the sediments, and an inverse correlation was observed with the sediment C/N ratio. Cysts may serve as seedbanks for Pyrodinium bahamense blooms in the area.
U2 - 10.1016/j.marpolbul.2021.112269
DO - 10.1016/j.marpolbul.2021.112269
M3 - Article
C2 - 33752158
SN - 0025-326X
VL - 166
JO - Marine Pollution Bulletin
JF - Marine Pollution Bulletin
M1 - 112269
ER -