Post-colonial pollution of the Bay of Cartagena, Colombia
Por:
Serna, Yuliana, Correa-Metrio, Alexander, Kenney, William Francis, Curtis, Jason Hillary, Velez, Maria Isabel, Brenner, Mark, Hoyos, Natalia, Restrepo, Juan Camilo, Cordero-Oviedo, Cecilia, Buck, David, Suarez, Nancy, Escobar, Jaime
Publicada:
1 ene 2020
Ahead of Print:
1 nov 2019
Resumen:
The city of Cartagena, Colombia, was founded in 1533, making it the
fifth oldest, continuously inhabitated colonial city in South America.
Today, Cartagena is the fifth largest city in Colombia, with similar to
1.2 million inhabitants. Las Quintas Lagoon lies near the center of
Cartagena and is connected hydrologically to the Bay of Cartagena and
Las Virgenes Lagoon via channels. The sediments of Las Quintas Lagoon
thus offer a unique opportunity to explore the environmental history of
one of the oldest cities in South America. We analysed a Pb-210- and
C-14-dated sediment core from Las Quintas Lagoon to investigate the
environmental effects of long-term urban development in this tropical,
estuarine setting. The sediment core from Las Quintas Lagoon displays
evidence of change in the depositional environment during the last few
centuries. Principal Component Analysis indicated relatively stable
conditions in Las Quintas Lagoon from the begining of the record (about
1300 CE) until ca. 1900 CE, when the ongoing eutrophication began. PC1
shows statistical significance and was dominated by geochemical
indicators, whereas PC2 correlated with pollen spectra. Upcore decreases
in TOC/TN values, together with increases in TOC, TN and delta N-15
values, indicate greater autochthonous (i.e. phytoplankton) production
and eutrophication. Lack of statistical significance of PC2 points to
low variability among pollen spectra, and hence vegetation, through
time. Diatom assemblages in the Las Quintas Lagoon sediment record
display two shifts during the last 100 years, ca. 1940 and 2000, which
also reflect progressive eutrophication of the system.
Filiaciones:
Departamento de Fisica y Geologia, Universidad del Norte, Km 5 Via Puerto Colombia, Barranquilla, Colombia
Instituto de Geologia, Universidad Nacional Autonoma de Mexico, Coyoacán, Mexico D.F., 04510, Mexico
Land Use and Environmental Change Institute, University of Florida, Gainesville, FL 32611, United States
Department of Geological Sciences, and Land Use and Environmental Change Institute, University of Florida, Gainesville, FL 32611, United States
Department of Geology, University of Regina, Regina, SK S4S 0A2, Canada
Departamento de Historia y Ciencias Sociales, Universidad del Norte, Km 5 Via Puerto Colombia, Barranquilla, Colombia
Posgrado en Ciencias de la Tierra, Universidad Nacional Autonoma de Mexico, Coyoacán, Mexico D.F., 04510, Mexico
School of Marine Science and Ocean Engineering, University of New Hampshire, Durham, NH 03824, United States
Instituto de Ciencias del Mar y Limnologia, Universidad Autonoma de Mexico, Mazatlán, Mexico
Departamento de Ingeniería Civil y Ambiental, Universidad del Norte, Km 5 Vía Puerto Colombia, Barranquilla, Colombia
Center for Tropical Paleoecology and Archaeology, Smithsonian Tropical Research Institute, Box 0843-03092, Balboa, Panama
Univ Norte, Dept Fis & Geol, Km 5 Via Puerto Colombia, Barranquilla, Colombia
Univ Nacl Autonoma Mexico, Inst Geol, Mexico City 04510, DF, Mexico
Univ Florida, Land Use & Environm Change Inst, Gainesville, FL 32611 USA
Univ Florida, Dept Geol Sci, Gainesville, FL 32611 USA
Univ Regina, Dept Geol, Regina, SK S4S 0A2, Canada
Univ Norte, Dept Hist & Ciencias Sociales, Km 5 Via Puerto Colombia, Barranquilla, Colombia
Univ Nacl Autonoma Mexico, Posgrad Ciencias Tierra, Mexico City 04510, DF, Mexico
Univ New Hampshire, Sch Marine Sci & Ocean Engn, Durham, NH 03824 USA
Univ Autonoma Mexico, Inst Ciencias Mar & Limnol, Mazatlan, Mexico
Univ Norte, Dept Ingn Civil & Ambiental, Km 5 Via Puerto Colombia, Barranquilla, Colombia
Smithsonian Trop Res Inst, Ctr Trop Paleoecol & Archaeol, Box 0843-03092, Balboa, Panama
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