Abundance and distribution of benthic foraminifera as indicators of the quality of the sedimentary environment in a subtropical lagoon, Gulf of California
| Autor: | Ana Luisa Carreño, Adriana Gómez-León, Evgueni Shumilin, Griselda Margarita Rodríguez-Figueroa, Alberto Sánchez |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Geologic Sediments food.ingredient Foraminifera 010501 environmental sciences Aquatic Science Oceanography Spatial distribution 01 natural sciences Sedimentary depositional environment food Abundance (ecology) Ammonia 0105 earth and related environmental sciences biology 010604 marine biology & hydrobiology Sediment biology.organism_classification Pollution Trace Elements Benthic zone Peneroplis Quinqueloculina Environmental science Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Marine pollution bulletin. 130 |
| ISSN: | 1879-3363 |
| Popis: | Abundance and spatial distribution of benthic foraminifera 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, Quinqueloculina 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. |
| Databáze: | OpenAIRE |
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