TY - JOUR
T1 - Vertical variability of benthic foraminifera and trace elements in a tropical coastal lagoon in the Gulf of California
AU - Sánchez, Alberto
AU - Gómez-León, Adriana
AU - Pérez-Tribouillier, Habacuc
AU - Rey-Villiers, Néstor
AU - Ortiz-Hernández, Ma Concepción
AU - Rodríguez-Figueroa, Griselda
AU - Shumilin, Evgueni
N1 - Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2020/9
Y1 - 2020/9
N2 - 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.
AB - 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.
KW - Ammonia
KW - Benthic foraminifera
KW - Environmental quality
KW - Gulf of California
KW - Nontolerant species
KW - Trace elements
UR - http://www.scopus.com/inward/record.url?scp=85087417211&partnerID=8YFLogxK
U2 - 10.1016/j.marpolbul.2020.111417
DO - 10.1016/j.marpolbul.2020.111417
M3 - Artículo
C2 - 32753201
SN - 0025-326X
VL - 158
JO - Marine Pollution Bulletin
JF - Marine Pollution Bulletin
M1 - 111417
ER -