Ecological quality status of the NE sector of the Guanabara Bay (Brazil): A case of living benthic foraminiferal resilience

Martins, Maria Virgínia Alves; Hohenegger, Johann; Martínez-Colón, Michael; Frontalini, Fabrizio; Bergamashi, Sérgio; Laut, Lázaro; Belart, Pierre; Mahiques, Michel Michaelovitch de; Pereira, Egberto; Rodrigues, R. F.; Terroso, Denise; Miranda, Paulo; Geraldes, Mauro César; Villena, Hélio Heringer; Reis, Tadeu dos; Socorro, Orangel Antonio Aguilera; Sousa, Silvia Helena de Mello e; Yamashita, Cintia; Rocha, Fernando

doi:10.1016/j.marpolbul.2020.111449

Cited by 23 publications

(8 citation statements)

References 107 publications

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“…The TOC values found in the CRE are comparable to the values found in highly industrialized regions with significant organic input from commercial ports, domestic sewage, and/or runoff from agricultural fields (e.g., Jobos Bay in Puerto Rico, TOC: 3.7-10.3%, Martínez-Colón et al 2021; and Guanabara Bay in Brazil, TOC: 2.1-5.5%, Martins et al 2020). However, the anthropogenic influence alone cannot be related to higher values of TOC everywhere.…”

Section: Environmental Characterization Of the Estuarysupporting

confidence: 62%

“…Nonetheless, in recent decades, the number of studies using foraminifera as bioindicators in tropical areas has increased, which a focus on the foraminiferal response to natural (Debenay et al 2001;Duleba and Debenay 2003;Laut et al 2016a;Belart et al 2019) and anthropogenic (Vilela et al 2004(Vilela et al , 2011Teodoro et al 2009;Eichler et al 2015;Laut et al 2016bLaut et al , 2021aBelart et al 2018;Raposo et al 2018;Pregnolato et al 2018;Martins et al 2020) environmental stresses. A few studies addressing the effect of trace element pollution on the benthic foraminiferal community have also been performed (Debenay and Fernandez 2009;Lacuna and Alviro 2014;Martínez-Colón et al 2009, 2018ab;Sánchez et al 2020).…”

Section: Introductionmentioning

confidence: 99%

“…A few studies addressing the effect of trace element pollution on the benthic foraminiferal community have also been performed (Debenay and Fernandez 2009;Lacuna and Alviro 2014;Martínez-Colón et al 2009, 2018ab;Sánchez et al 2020). However, along the Brazilian coastline, most of these investigations were based on the total assemblage (not distinguishing living from dead organisms) and therefore could not constrain the effect of the trace elements in the living organisms (e.g., Vilela et al 2004Vilela et al , 2011Donnici et al 2012;Damasio et al 2020), with the exception of the studies by Duleba et al (2018), Martins et al (2020), andCastelo et al (2022) in Southeastern Brazil. This highlights an important gap in such studies along the extensive Brazilian coastline and in tropical regions as a whole.…”

Section: Introductionmentioning

confidence: 99%

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Benthic Foraminiferal Response to Trace Elements in a Tropical Mesotidal Brazilian Estuary

Raposo

Frontalini

Clemente

et al. 2022

Estuaries and Coasts

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Living benthic foraminifera have been widely used as ecological indicators in coastal ecosystems. There is, however, a lack of studies on their response to trace element pollution in tropical estuarine systems. Here we analyze the living assemblages of benthic foraminifera, collected in 2016, in the Cachoeira River Estuary (CRE) in northeastern Brazil, to understand their response to natural and anthropogenic stressors, including trace element pollution. Some species were good bioindicators of specific environmental conditions, such as the agglutinant Paratrochammina clossi which preferred mangrove areas and anoxic conditions. In addition, the calcareous Ammonia tepida and Cribroelphidium excavatum, dominant within the whole system disregarding organic or trace element pollution, seem to resist even in the areas most polluted by trace elements. Interestingly, C. excavatum showed a particular positive relationship with trace element pollution (specifically by Cu and Pb), outnumbering the opportunistic A. tepida in the areas with higher pollution of these metals. However, for other species, it is still difficult to constrain to which parameters they respond (i.e., Haynesina germanica and Elphidium gunteri, which in the present study seem to respond to natural conditions, whereas in the literature they are regarded as indicators of trace element and organic pollution, respectively). Therefore, our findings shed light on the response of benthic foraminiferal species in a highly polluted and highly mixed tropical estuarine system and highlight the need to understand the complexity of these environments when applying foraminiferal biological indexes to avoid imprecise conclusions.

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Section: Environmental Characterization Of the Estuarysupporting

confidence: 62%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Benthic Foraminiferal Response to Trace Elements in a Tropical Mesotidal Brazilian Estuary

Raposo

Frontalini

Clemente

et al. 2022

Estuaries and Coasts

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“…In this study, we recorded consistently high individual contamination levels along the western lagoon shores for Co, Al, Fe, and Zn in the F1 fraction, for Ni in the F2 fraction, for Cr and Ni in the F3 fraction, and for Co, Ni, and Fe in the F4 fraction (Figures 5 and 6; Table 4; Appendix A -Table A1). However, given the relative acidic conditions of the lagoon (pH: 5.8-6.9), it is probable that the F2/F3 fractions are not significantly sequestered during carbonate mineralization [1,38]. This may explain the very low concentration found in the respective exchangeable and acid-soluble fractions (Figure 6).…”

Section: Potentially Toxic Elements In Sedimentsmentioning

confidence: 99%

“…Several workers have reported the influence of PTEs on the distribution and diversity of benthic foraminifera especially in estuarine-lagoon environments (e.g., [2,38,[50][51][52]). However, the concept of using total and bioavailable PTE concentrations does not directly apply when used as an assessment of the ecological response of benthic foraminifera to pollutants [1,37,53].…”

Section: Correlation Between Ptes and Benthic Foraminiferal Assemblagesmentioning

confidence: 99%

Contamination Levels of Potentially Toxic Elements and Foraminiferal Distribution Patterns in Lagos Lagoon: A Correlation Analysis

Fajemila

Martínez-Colón

Sariaslan

et al. 2021

Water

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The ecological response of benthic foraminifera to bioavailable Potentially Toxic Elements (PTEs) was evaluated in Lagos Lagoon (Nigeria). We sampled and analyzed PTEs across Lagos Lagoon with the aim to investigate the extent of contaminated sediments, to document their distribution, and to explore the relationship between PTE concentration and the spatial distribution, composition, abundance, and species richness of benthic foraminifera biotas. PTE’s recordings showed a wide range reflecting a diffuse contamination, where Contamination and Enrichment Factor suggest low to extremely polluted sediments. Findings of a previous survey of the benthic foraminifera inhabiting Lagos Lagoon revealed diverse assemblages of benthic taxa, species-specific distribution patterns, gradients of species richness and abundance, and a disjunct distribution of agglutinated and hyaline-perforate/porcelaneous taxa along a pronounced salinity gradient. Correlation matrix analysis shows that except for Selenium, all PTE total concentrations positively correlate with mud and Total Organic Carbon (TOC) and two of the most abundant agglutinated taxa, Ammotium salsum, and Trochammina sp. 1. Moreover, both species display significant positive correlations with CrF4-CoF2-F3-F4-total-CuF4-total-NiF3-F4-total-AlF4-total-FeF3-F4-total-ZnF3-F4-total. On the other hand, both foraminifers correlate negatively with PbF4-SeF3-Setotal. The overall significant positive correlation of these PTEs suggests that they behave as micronutrients when complexed with organic matter. No significant positive correlation with none of the PTEs in any fraction was found for neither species richness nor for the most abundant hyaline perforate species (Ammonia aoteana). Some PTE fractions were found to correlate either positively or negatively with individual species, suggesting that they function as either micronutrients and/or stressors. The resulting Contamination Factor of the PTE total concentrations shows that only a few sample sites can be classified as “moderately” polluted for chromium, zinc, and copper and that all sampled sites are classified as “highly polluted” for selenium. The highest concentrations for Cr, Cu, Ni, and Zn were found towards the industrialized western part, an area that is characterized by moderate to high diversity but low abundances.

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Long-term eutrophication and contamination of the central area of Sepetiba Bay (SW Brazil)

Castelo

Martins

Ferreira

et al. 2021

Environ Monit Assess

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Ecological quality status of the NE sector of the Guanabara Bay (Brazil): A case of living benthic foraminiferal resilience

Cited by 23 publications

References 107 publications

Benthic Foraminiferal Response to Trace Elements in a Tropical Mesotidal Brazilian Estuary

Benthic Foraminiferal Response to Trace Elements in a Tropical Mesotidal Brazilian Estuary

Contamination Levels of Potentially Toxic Elements and Foraminiferal Distribution Patterns in Lagos Lagoon: A Correlation Analysis

Long-term eutrophication and contamination of the central area of Sepetiba Bay (SW Brazil)

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