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Vertical variability of benthic foraminifera and trace elements in a tropical coastal lagoon in the Gulf of California


Sanchez, A and Gomez-Leon, A and Perez-Tribouillier, H and Rey-Villiers, N and Concepcion Ortiz-Hernandez, M and Rodriguez-Figueroa, G and Shumilin, E, Vertical variability of benthic foraminifera and trace elements in a tropical coastal lagoon in the Gulf of California, Marine Pollution Bulletin, 158 Article 111417. ISSN 0025-326X (2020) [Refereed Article]

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2020 Elsevier Ltd. All rights reserved.

DOI: doi:10.1016/j.marpolbul.2020.111417


Population growth around water bodies is deteriorating environmental quality. The benthic foraminiferal and trace element concentration in a pair of short sediment cores were used to establish the quality of the sedimentary environment in a tropical coastal lagoon in the southwestern Gulf of California. From 25 cm depth towards the surface of the sediment core, Ammonia beccarii was dominant over nontolerant species and the concentrations of V, Ni, Co, Zn, Cu, Hg and Pb in the sediments increased compared with the lower depth intervals. This finding suggests a deterioration in the environmental quality of the lagoon since 1980, associated with an increase in the sizes of the population and vehicle fleet in the city of La Paz, Baja California Sur, and with the operation of three fossil fuel-based thermoelectric plants since 1985.

Item Details

Item Type:Refereed Article
Keywords:benthic foraminifera, ammonia, nontolerant species, trace elements, Gulf of California, environmental quality
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Marine and estuarine ecology (incl. marine ichthyology)
Objective Division:Environmental Management
Objective Group:Marine systems and management
Objective Field:Measurement and assessment of marine water quality and condition
UTAS Author:Perez-Tribouillier, H (Mr Habacuc Perez-Tribouillier)
ID Code:143770
Year Published:2020
Web of Science® Times Cited:5
Deposited By:Oceans and Cryosphere
Deposited On:2021-04-01
Last Modified:2021-09-23

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