Challenges and perspectives for the Brazilian semi-arid coast under global environmental changes

Soares, Marcelo de Oliveira; Campos, Carolina Coelho; Carneiro, Pedro Bastos de Macêdo; Barroso, Hileia Santos; Marins, Rozane Valente; Teixeira, Cláudia Fernanda Almeida; Menezes, Maria Ozilea Bezerra; Pinheiro, Lidriana de Souza; Viana, M. B.; Feitosa, Caroline Vieira; Sánchez-Botero, Jorge Iván; Rocha‐Barreira, Cristina de Almeida; Matthews-Cascon, Helena; Matos, Franco; Gorayeb, Adryane; Cavalcante, Mariany Sousa; Moro, Marcelo Freire; Rossi, Sergio; Belmonte, Genuario; Melo, Vânia Maria Maciel; Rosado, Alexandre Soares; Ramires, G.; Tavares, Tallita Cruz Lopes; Garcia, Tatiane Martins

doi:10.1016/j.pecon.2021.06.001

Cited by 33 publications

(41 citation statements)

References 102 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The extension of recognized Brazilian BCEs (at least 1,100,000 ha) (Table 1) needs to be better understood, quantified, acknowledged, and protected because of increasing human pressures operating on different spatial scales (local, regional, and global) (Copertino et al, 2016;Horta et al, 2016;Schaeffer-Novelli et al, 2016;Soares et al, 2017;Soares et al, 2021). In this context, we present a characterization of three actionable BCEs (mangroves, salt marshes, and seagrass meadows) in Brazil (Figure 2).…”

Section: Blue Carbon Ecosystems In Brazilmentioning

confidence: 99%

“…These rates are considerably lower than the global averages reported for salt marshes (245 ± 26 g m −2 y −1 ), mangrove forests (163 ± 40 g m −2 y −1 ), and seagrasses (138 ± 38 g m −2 y −1 ). Nevertheless, the importance of HTFs as carbon sinks may be substantial given their extensive coverage along Brazil, particularly on northern and northeast coast (MapBiomas 2021; Soares et al, 2021). HTFs are essential for Brazilian mangrove forests, as they act as reservoirs of nutrients and buffer zones, particularly where mangroves are likely to move inland with sea-level rise due to climate change (Schaeffer-Novelli et al, 2018).…”

Section: Hypersaline Tidal Flats (Apicuns)mentioning

confidence: 99%

See 1 more Smart Citation

Blue Carbon Ecosystems in Brazil: Overview and an Urgent Call for Conservation and Restoration

et al. 2022

View full text Add to dashboard Cite

In this article, we discuss knowledge and gaps regarding blue carbon ecosystems (BCEs) in Brazil, considering the urgency to apply protection actions and policies to safeguard their biodiversity and associated ecosystem services. We also indicate areas of further research to improve carbon stocks and sequestration rate estimates. We call attention to the shortage of studies on Brazilian BCEs relative to the growing knowledge on the Blue Carbon Framework accumulated worldwide over the last decade. Considering the extensive Brazilian Economic Exclusive Zone (known as “Blue Amazon”), knowledge concerning blue carbon stocks is vital at regional and global scales for mitigating global increases in atmospheric carbon dioxide (CO2). The Blue Amazon has at least 1,100,000 ha of vegetated and non-vegetated coastal ecosystems (mangroves, salt marshes, seagrass meadows, and hypersaline tidal flats) that collectively contain vast amounts of stored carbon, making Brazil an ideal place to test mechanisms for evaluating, conserving, and restoring BCEs. Other poorly understood potential sinks and sources of carbon are macroalgal and rhodolith beds, mudflats, continental shelf sediments, and marine animal forests in shallow, mesophotic, and deep waters. The carbon fluxes between diverse environmental compartments, such as soil–air, soil–water, groundwater–water–surface water, air–water, and land–ocean, in BCEs across the Blue Amazon must be studied. We emphasize the importance of assessing the total carbon stock and the recent dismantling of environmental laws that pose great risks to these important BCEs. The conservation and recovery of these areas would enhance the carbon sequestration capacity of the entire country. Furthermore, we highlight priorities to improve knowledge concerning BCEs and their biogeochemical cycles in the Blue Amazon and to provide information to assist in the reduction of atmospheric levels of CO2 for the United Nations Decade of Ocean Science (2021–2030).

show abstract

Section: Blue Carbon Ecosystems In Brazilmentioning

confidence: 99%

Section: Hypersaline Tidal Flats (Apicuns)mentioning

confidence: 99%

Blue Carbon Ecosystems in Brazil: Overview and an Urgent Call for Conservation and Restoration

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The study area is located in the distinctive and underexplored Brazilian semi-arid coast (BSC) (from almost 2 to 5° S) (Diniz and Oliveira, 2016), in the Tropical Southwestern Atlantic marine province (sensu Spalding et al, 2007) (Figure 1). This semi-arid region presents diverse coastal habitats, such as shallow-water and mesophotic reefs, rhodolith and seagrass beds, intertidal beach rocks, sandy beaches, and submerged dunes (Ekau and Knoppers, 1999;Costa et al, 2020;Soares et al, 2017Soares et al, , 2021. In this study, water sampling was concentrated within and around an area of fourteen tropical reefs at Pedra da Risca do Meio Marine State Park (whose acronym in Portuguese is PEMPRIM).…”

Section: Study Areamentioning

confidence: 99%

Distribution of nutrients and chlorophyll across an equatorial reef region: Insights on coastal gradients

et al. 2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…Between the ARS and ERS (from coordinates 5° S 36° W to 2° S 44° W) is the Brazilian semi-arid coast (SAC) 16 . This area extends for about 1000 km in the SE-NW direction, and has distinct environmental conditions, such as a large interannual variability in rainfall, a predominance of small rivers, and a strong influence of wind on coastal landscapes 16 . Historically, the continental shelf along the SAC is considered poor in terms of biogenic reef occurrence 17 – 19 .…”

Section: Introductionmentioning

confidence: 99%

“…Historically, the continental shelf along the SAC is considered poor in terms of biogenic reef occurrence 17 – 19 . The shallower sector of this continental shelf is subject to intense wind-driven longshore sediment drifts 16 , and large biogenic reefs are absent 20 . In nearshore areas, only fossil biogenic formations or small coral assemblages on intertidal rock outcrops have been reported, which are usually referred to as sandstone reefs 20 .…”

Section: Introductionmentioning

confidence: 99%

Interconnected marine habitats form a single continental-scale reef system in South America

Carneiro¹,

Neto

Jucá-Queiroz

et al. 2022

Sci Rep

View full text Add to dashboard Cite

Large gaps in reef distribution may hinder the dispersal of marine organisms, interrupting processes vital to the maintenance of biodiversity. Here we show the presence and location of extensive reef habitats on the continental shelf between the Amazon Reef System (ARS) and the Eastern Brazilian Reef System (ERS), two reef complexes off eastern South America. Formations located 20–50 m deep include both biogenic and geogenic structures. The presence of diverse reef assemblages suggests the widespread occurrence of rocky substrates below 50 m. These habitats represent an expansion of both the ARS and ERS and the closure of the only remaining large-scale gap (~ 1000 km) among West Atlantic reef environments. This indicates that the SW Atlantic harbors a single, yet heterogeneous, reef system that stretches for about 4000 km, and thus, represents one of the largest semi-continuous tropical marine ecosystems in the world.

show abstract

Challenges and perspectives for the Brazilian semi-arid coast under global environmental changes

Cited by 33 publications

References 102 publications

Blue Carbon Ecosystems in Brazil: Overview and an Urgent Call for Conservation and Restoration

Blue Carbon Ecosystems in Brazil: Overview and an Urgent Call for Conservation and Restoration

Distribution of nutrients and chlorophyll across an equatorial reef region: Insights on coastal gradients

Interconnected marine habitats form a single continental-scale reef system in South America

Contact Info

Product

Resources

About