Nearshore sedimentation as a record of landuse change and erosion: Jurujuba Sound, Niterói, SE Brazil

Neto, José Antônio Baptista; Barreto, Cíntia Ferreira; Silva, Maria Augusta Martins da; Smith, Bernard; McAllister, John; Vilela, Claudia Gutterres

doi:10.1016/j.ocecoaman.2012.04.022

Cited by 15 publications

(7 citation statements)

References 40 publications

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“…Post-impact sediments were also characterized by more abundant Bulimina species off Guadiana Estuary (c. 1500-1200 years BP; Mendes et al 2010) and in the central Adriatic Sea (1345 years BP; Oldfield et al 2003). An inverse trend was described by Baptista Neto et al (2012) in Jurujuba Sound, Brazil, where Ammonia replaced Buliminella in response to greater soil erosion. In this case, however, exposure to increased heavy metal concentrations from untreated sewage outfall may account for this ecological transition.…”

Section: Land-use and Land-cover Changesmentioning

confidence: 88%

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Microbiotic signatures of the Anthropocene in marginal marine and freshwater palaeoenvironments

Wilkinson

Poirier

Head

et al. 2014

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The term 'Anthropocene' has been proposed to indicate a geological interval characterized by global anthropogenic environmental change. This paper attempts to recognize a method by which the Anthropocene can be defined micropalaeontologically. In order to do this, microfloras and microfaunas (diatoms, macrophytes, dinoflagellate cysts, foraminifera and ostracods) from nearshore waters through to paralic and freshwater aquatic milieux are considered, and biotic variability with an anthropogenic causation identified. Microbiotic change can be related to anthropogenically induced extinctions, pollution-related mutation, environmentally influenced assemblage variability, geochemistry of carapaces/tests, floral change related to lacustrine acidification, faunal and floral correlation to industrial and agricultural signatures and introduction of exotic species via shipping. The influence of humanity on a local scale can be recognized in assemblages as far back as 5000 years BP. However, widespread anthropogenic change took place in Europe and America, particularly in the nineteenth and twentieth centuries, although in Asia (e.g. Japan) it cannot be observed prior to the twentieth century. Profound and global biotic change began in the midtwentieth century and, if the Anthropocene is to be defined in this way, then the period 1940-1945 might encompass the biotic base of the interval.

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Section: Land-use and Land-cover Changesmentioning

confidence: 88%

“…;McGann et al 2003;Oldfield et al 2003;Matthews et al 2005;Thibodeau et al 2006;Alve et al 2009; Bartels-Jónsdóttir et al 2009;Mendes et al 2010;Vallefuoco et al 2012);(3) the expansion of species of the genus Ammonia(Akimoto et al 2004;Thomas et al 2004;Tsujimoto et al 2008;Nomura & Kawano 2011;Baptista Neto et al 2012;Ye et al 2012).…”

mentioning

confidence: 99%

Microbiotic signatures of the Anthropocene in marginal marine and freshwater palaeoenvironments

Wilkinson

Poirier

Head

et al. 2014

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Section: Anthropogenic Impacts Along the Brazilian Coast: A Historicamentioning

confidence: 99%

“…It has been subjected to successive phases of land disturbance since the sixteenth century as a consequence of widespread urbanization (BAPTISTA NETO et al, 2013a). In common with most of the humid tropics, the Southeast Coastal Range is subject to an extremely erosive climatic regime characterized by periods of prolonged and frequently intense rainfall (BAPTISTA NETO et al, 2013a), which increases continental runoff into the Rio de Janeiro, São Paulo and Espirito Santo coastal regions. The opening of coastal inlets in the Cananéia region (São Paulo) has brought about changes in hydrodynamics, including a decrease in salinity, an increase in turbidity and further changes in geomorphology and sedimentation patterns (MAHIQUES et al, 2009).…”

Section: Anthropogenic Impacts Along the Brazilian Coast: A Historicamentioning

confidence: 99%

“…Several organic geochemical indicators suggest that the changes in sediment organic matter reflect the alteration of the processes of the occupation and urbanization which have been occurring in the areas surrounding metropolitan waters over the last 70 years. These processes have included the conversion of mangrove forests into urban areas, bridge building and the installation of treatment plants ( GRILLO et al, 2013;BAPTISTA NETO et al, 2013a). In and surrounding Guanabara Bay, for example, the catchment area has been greatly modified by human activities over the last 100 years, in particular by the deforestation and uncontrolled settlemen, which have generally increased the river discharges and sediment loads flowing into the bay (BAPTISTA NETO et al, 2013b).…”

Section: Anthropogenic Impacts Along the Brazilian Coast: A Historicamentioning

confidence: 99%

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Seagrass and Submerged Aquatic Vegetation (VAS) Habitats off the Coast of Brazil: state of knowledge, conservation and main threats

et al. 2016

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Financial Support: This study was supported by the Brazilian Network for Coastal Benthic Studies -ReBentos (Programa SISBIOTA), Rede CLIMA and INCT for Climate Changes; sponsored by CNPq and FAPESP. Seagrass meadows are among the most threatened ecosystems on earth, raising concerns about the equilibrium of coastal ecosystems and the sustainability of local fisheries. The present review evaluated the current status of the research on seagrasses and submerged aquatic vegetation (SAV) habitats off the coast of Brazil in terms of plant responses to environmental conditions, changes in distribution and abundance, and the possible role of climate change and variability. Despite an increase in the number of studies, the communication of the results is still relatively limited and is mainly addressed to a national or regional public; thus, South American seagrasses are rarely included or cited in global reviews and models. The scarcity of large-scale and long-term studies allowing the detection of changes in the structure, abundance and composition of seagrass habitats and associated species still hinders the investigation of such communities with respect to the potential effects of climate change. Seagrass meadows and SAV occur all along the Brazilian coast, with species distribution and abundance being strongly influenced by regional oceanography, coastal water masses, river runoff and coastal geomorphology. Based on these geomorphological, hydrological and ecological features, we characterised the distribution of seagrass habitats and abundances within the major coastal compartments. The current conservation AbstrActPradarias de gramas marinhas e vegetação aquática submersa (VAS) estão entre os ecossistemas mais ameaçados do planeta, gerando preocupação sobre o equilíbrio dos ecossistemas costeiros e a sustentabilidade das pescarias. A presente revisão avaliou o estado do conhecimento sobre as pradarias marinhas e VAS do Brasil, considerando as respostas das plantas às condições ambientais, e o possível papel da geomorfologia costeira e variabilidade climática sobre a distribuição e abundância das populações. Apesar do crescente aumento no número de publicações, a comunicação dos resultados ainda é relativamente limitada e destina-se principalmente ao público nacional ou regional. Como resultado, as pradarias de gramas marinhas da América do Sul raramente são incluídas ou citadas em revisões e modelos globais. A escassez de estudos em larga escala e de longo prazo, permitindo a detecção de mudanças na estrutura, abundância e composição dos habitats e espécies associadas, limita a investigação das comunidades no que diz respeito aos efeitos potenciais das mudanças climáticas. Pradarias marinhas e VAS ocorrem ao longo de toda a costa brasileira, mas a distribuição e abundância das espécies são influenciadas pela oceanografia regional, massas de água costeiras, descarga de rios e geomorfologia costeira. Com base nas características oceanográficas, geomorfológicas, hidrológicas e ecológicas, o estudo discutiu a distr...

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Land–Ocean Connectivity Through Subsidies of Terrestrially Derived Organic Matter to a Nearshore Marine Consumer

et al. 2018

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Nearshore sedimentation as a record of landuse change and erosion: Jurujuba Sound, Niterói, SE Brazil

Cited by 15 publications

References 40 publications

Microbiotic signatures of the Anthropocene in marginal marine and freshwater palaeoenvironments

Microbiotic signatures of the Anthropocene in marginal marine and freshwater palaeoenvironments

Seagrass and Submerged Aquatic Vegetation (VAS) Habitats off the Coast of Brazil: state of knowledge, conservation and main threats

Land–Ocean Connectivity Through Subsidies of Terrestrially Derived Organic Matter to a Nearshore Marine Consumer

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