DISTRIBUTION OF FORAMINIFERA IN A SUBTROPICAL BRAZILIAN ESTUARINE SYSTEM

Autor(es)

Diaz, Teresa Lima ^[1] ; Rodrigues, Andre Rosch ^[2] ; Eichler, Beatriz Beck ^[2]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Oceanog, Dept Oceanog Geol, BR-05508900 Sao Paulo - Brazil

^[2] Univ Sao Paulo, Inst Oceanog, Dept Biol, BR-05508900 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF FORAMINIFERAL RESEARCH; v. 44, n. 2, p. 90-108, APR 2014.
• Citações Web of Science: 2

Resumo

The Santos Estuary, an estuarine system bordering the cities of Santos, Sao Vicente, and Cubatao in southeastern Brazil, contains the country's largest harbor and main industrial center that have been impacted by industrial and domestic effluents since the late 19 century. We report here on the distribution of benthic foraminifera and related environmental parameters in this estuary system during the summer and winter of 2007. The foraminiferal fauna is representative of mixohaline environments, and includes 107 live + dead taxa, of which 73 are calcareous benthic, 33 agglutinated, and one planktonic. Most of the calcareous specimens belong to the genera Ammonia, Elphidium, and Quinqueloculina and the species Nonionella atlantica. The living population was similar to 10% of the total foraminiferal fauna, and the dominant living species were similar to those in the total live + dead fauna. Ammonia beccarii was dominant in most of the stations during summer and winter. It could be considered opportunistic due to its high abundance in samples with low diversity and richness. It is not evident if the effects of human population density on the study area impacted the distribution of the foraminiferal fauna, because low proportions of deformed tests and low values of abundance, richness, and diversity were also found in pristine areas near Santos, Sao Vicente, and Cubatao. (AU)

• Processo FAPESP: 09/13666-1 - Determinação da biodiversidade de foraminíferos recentes da Enseada do Flamengo (Ubatuba, SP) através da utilização de ferramentas biomoleculares
• Beneficiário: André Rosch Rodrigues
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado