Coral growth bands recorded trace elements associated with the Fundão dam collapse

Cardoso, Gabriel O.; Falsarella, Ludmilla N.; Chiroque-Solano, Pamela M.; Porcher, Carla Cristine; Leitzke, Felipe Padilha; Wegner, Aline Celuppi; Carelli, Thiago Gonçalves; Salomon, Paulo S.; Bastos, Alex Cardoso; Sá, Fabian; Fallon, Stewart; Salgado, Leonardo T.; Moura, Rodrigo L.

doi:10.1016/j.scitotenv.2021.150880

Cited by 11 publications

(3 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In Brazil, studies carried out by Cardoso et al [192] in 2022, and Evangelista et al [193] in 2023, have evaluated the concentrations of metals in the coral exoskeleton of the Abrolhos Bank. These studies attempted to assess the impact of the Fundão dam collapse in 2015, which carried over about 50-60 million cubic meters of ore tailings with several PTEs to the Doce River, which discharged a sediment plume into the South Atlantic Ocean and transported it via ocean currents to the most important reef system in the South Atlantic, the Abrolhos coral reef [167].…”

Section: Corals From the Brazilian Coast: Environmental Aspectsmentioning

confidence: 99%

Seaweeds and Corals from the Brazilian Coast: Review on Biotechnological Potential and Environmental Aspects

et al. 2023

View full text Add to dashboard Cite

Brazil has a megadiversity that includes marine species that are distributed along 800 km of shoreline. This biodiversity status holds promising biotechnological potential. Marine organisms are important sources of novel chemical species, with applications in the pharmaceutical, cosmetic, chemical, and nutraceutical fields. However, ecological pressures derived from anthropogenic actions, including the bioaccumulation of potentially toxic elements and microplastics, impact promising species. This review describes the current status of the biotechnological and environmental aspects of seaweeds and corals from the Brazilian coast, including publications from the last 5 years (from January 2018 to December 2022). The search was conducted in the main public databases (PubChem, PubMed, Science Direct, and Google Scholar) and in the Espacenet database (European Patent Office—EPO) and the Brazilian National Property Institute (INPI). Bioprospecting studies were reported for seventy-one seaweed species and fifteen corals, but few targeted the isolation of compounds. The antioxidant potential was the most investigated biological activity. Despite being potential sources of macro- and microelements, there is a literature gap regarding the presence of potentially toxic elements and other emergent contaminants, such as microplastics, in seaweeds and corals from the Brazilian coast.

show abstract

Section: Corals From the Brazilian Coast: Environmental Aspectsmentioning

confidence: 99%

Seaweeds and Corals from the Brazilian Coast: Review on Biotechnological Potential and Environmental Aspects

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Similar to the rhodolithsrelated benthic habitat, high input of sediments/turbidity could cause the burial of the photosynthetic organisms and benthic communities posing a threat to those highly sensitive habitats causing deleterious effects on the ecosystem that would need a long time to recover (Wilson et al, 2004). On top of that, the potential input of tailings could influence benthic organisms' growth and even become incorporated into coral skeletons (Cardoso et al, 2022). Francini-Filho et al (2019) showed no evidence of tailings impact in the Forgotten Reef area during the first year after the disaster.…”

Section: Benthic Habitat Mapping Guidance For Marine Management and C...mentioning

confidence: 99%

The role of benthic habitat mapping for science and managers: A multi-design approach in the Southeast Brazilian Shelf after a major man-induced disaster

Menandro

Lavagnino²,

Vieira³

et al. 2022

Front. Mar. Sci.

Self Cite

View full text Add to dashboard Cite

Seabed mapping is currently the baseline information for ocean management and conservation, and is an indispensable item within research and Marine Spatial Planning. Here, we use a case study and published data along the southeast Brazilian continental shelf to illustrate the concepts and ideas of potential benthic habitat mapping and the importance of having maps on different scales and the potential for using a multi-design approach. The case analysis presented here uses a regional map and distinct criteria (seabed geodiversity and biodiversity, and potential influence of a tailings plume) to define three areas along the continental shelf to be mapped in a high-resolution, as part of a marine monitoring program. The background of the case study is a tailing dam failure disaster that led to the input of iron ore tailings in the ocean, leading to a major environmental disaster. Three areas were chosen, including: a Marine Protected Area (MPA Costa das Algas), a major fishing ground (the Doce River prodelta/depocenter), and an understudied reef area (Forgotten Reefs). Potential benthic habitat mapping was carried out using acoustic surveys (multibeam echosounder acquiring bathymetry and backscatter) and ground-truthing (sediment samples and seafloor image). Results detailed the potential habitats throughout the three areas, providing primary information for the study of benthic habitats and their distribution. The multi-design approach indicated that although a regional analysis can indicate potential vulnerability as a first assessment approach, high-resolution potential habitat mapping (herein, 20 m or finer) is beneficial to evaluate and produce a higher-confidence level for decision-makers. Having an overall view of what and where to collect new and finer data would be best to identify vulnerable areas that, in this case study, could be threatened by plume dispersion and tailings accumulation. Our results support the delineation of priority areas aiming for monitoring, protection and guiding for other studies, besides the consolidation of habitat importance and the integration of various datasets through a hierarchical classification scheme. Although Brazil has never produced a regional or national habitat map for the entire continental margin, there are already conditions to plan, execute and maintain a habitat mapping program, partnering with Universities, Government Institutions (e.g., the Brazilian Navy), and the private sector. In the context of the UN Decade of Ocean Science targets, it is urgent to plan and implement a national database capable of supporting a habitat classification effort on a broader national scale, with the flexibility to support a multi-design or a multi-scale approach.

show abstract

“…As a result, Ba/Ca sw variability has been ascribed to other localized phenomena such as Ba sources from upwelling (Lea et al., 1989), barite formation accompanying phytoplankton blooms (Saha et al., 2018; Sinclair, 2005), and Ba release from sediment resuspension (Prouty et al., 2010). However, anthropogenic forcing and pollution have also been linked to Ba/Ca variability such as groundwater discharge (Prouty et al., 2010; Rosenheim et al., 2005), dam collapse (Cardoso et al., 2022), land use change (Carilli, Prouty, et al., 2009), and oil pollution (Carriquiry & Horta‐Puga, 2010; Weerabaddana et al., 2021). These disparities in Ba supply, as well as biologically induced fractionation in trace element incorporation within coral skeletons (Dietzel et al., 2004; Gaetani & Cohen, 2006; Lea et al., 1989), reinforce the need to cautiously approach Ba/Ca as a proxy for river sediment supply.…”

Section: Introductionmentioning

confidence: 99%

Century‐Long Records of Sedimentary Input on a Caribbean Reef From Coral Ba/Ca Ratios

Shaw,

Standish,

Fowell

et al. 2024

Paleoceanog and Paleoclimatol

View full text Add to dashboard Cite

Coral reef ecosystems are delicately balanced and are thus prone to disruption by stressors such as storms, disease, climate variability and natural disasters. Most tropical coral populations worldwide are now in rapid decline owing to additional anthropogenic pressures, such as global warming, ocean acidification and a variety of local stressors. One such problem is the addition of excess sediment and nutrients flux to reefs from increased soil erosion from land use changes. Here we present century‐long Ba/Ca records from two Siderastrea siderea colonies as a proxy for local riverine discharge and sediment flux to the southern Mesoamerican Barrier Reef System (MBRS). The coral colonies have linear extension trends, which can be seen as a first‐order indicator for coral health and response. The coral colony that exhibits a decline in linear extension rate from the forereef of the MBRS, mainly receives riverine input from Honduras, whilst the coral from the backreef, which does not exhibit a decline in extension rate, primarily receives riverine input from more sparsely populated regions of Belize. Coral Ba/Ca increased (>70%) through time in the forereef colony, while the backreef colony showed little long‐term increase in Ba/Ca over the last century. Our results suggest that increasing sediment supply may have played a role in the decline of forereef skeletal extension in the southernmost MBRS region, likely stemming from increasing land‐use changes in Honduras.

show abstract

Coral growth bands recorded trace elements associated with the Fundão dam collapse

Cited by 11 publications

References 42 publications

Seaweeds and Corals from the Brazilian Coast: Review on Biotechnological Potential and Environmental Aspects

Seaweeds and Corals from the Brazilian Coast: Review on Biotechnological Potential and Environmental Aspects

The role of benthic habitat mapping for science and managers: A multi-design approach in the Southeast Brazilian Shelf after a major man-induced disaster

Century‐Long Records of Sedimentary Input on a Caribbean Reef From Coral Ba/Ca Ratios

Contact Info

Product

Resources

About