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Resumen del producto
Gómez-León, A., G., Rodríguez-Figueroa, E., Shumilin, A.L., Careño & A., Sánchez
(2018).
Abundance and distribution of benthic foraminífera as indicators of the quality of the sedimentary environment in a subtropical lagoon, Gulf of California .
Marine Pollution Bulletin.
130(1): 31-39.
DOI: 10.1016/j.marpolbul.2018.03.013.
Abundance and distribution of benthic foraminífera as indicators of the quality of the sedimentary environment in a subtropical lagoon, Gulf of California
Adriana Gómez-León, Griselda Rodríguez-Figueroa, Evgueni Shumilin, Ana Luisa Careño y Alberto Sánchez
Abundance and spatial distribution of benthic forminifera were used to evaluate the impacts of anthropogenic activities on sediment quality in a coastal lagoon in the Gulf of California. In 1985 and 2013, 27 samples of superficial sediments were collected. The foraminifera genera Ammonia, Cribroelphidium and Peneroplis were dominant in both years. The abundance of Ammonia increased from 41% to 60%, while Peneroplis abundance decreased from a maximum of 50% in 1985 to 7% in 2013. The greater abundance of Ammonia and the greater spatial coverage of Ammonia and Cribroelphidium suggest a marked environmental deterioration in the quality of the sedimentary environment, which contrasts with studies of trace elements in the sediment of this lagoon. The Foram Stress Index indicates that sediment quality has deteriorated over time. likely due to the effects of anthropogenic activities around the lagoon.
Palabras clave: Benthic foraminifera; Ammonia; Environmental deterioration; Foram stress index
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