The Beaches of the State of São Paulo

Mahiques, Michel Michaelovitch de; Siegle, Eduardo; Alcántara‐Carrió, Javier; Silva, Filipe Galiforni; Sousa, Paulo Henrique Gomes de Oliveira; Martins, Cristina Celia

doi:10.1007/978-3-319-30394-9_15

Cited by 12 publications

(13 citation statements)

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“…High rates of erosion were also identified in the beaches of the Comprida Island spit, with a retreat rate of 10 m/yr deduced from a one‐year survey (Silva et al ., ). However, considering the previous studies for the region (Tessler et al ., ; Mahiques et al ., ), it is clear that the shoreline retreat of the Iguape headland during the last decades to centuries represents the highest erosion rates of the entire São Paulo Bight. Because of this substantial erosion, the common mouth of the Ribeira de Iguape River and the Icapara Inlet was flanked by baymouth spits in 2009, i.e.…”

Section: Discussionmentioning

confidence: 97%

“…The shore is characterized by dissipative beaches with a rectilinear shape in plan-view and exposed to oceanic waves (Nascimento, 2006). In fact, the Iguape-Cananéia sector contains the most dissipative beaches of the State of São Paulo (Mahiques et al, 2016). A northeastward longshore drift is dominant in the northernmost sector of Comprida Island.…”

Section: Study Areamentioning

confidence: 99%

“…Compared to the northern sector of the São Paulo Bight, coastal human occupation in the area is low or very low (Mahiques et al, 2016). However, human disturbances have caused severe changes in the hydrodynamics and morphodynamics of the area, as well as increased pollution (Mahiques et al, 2009(Mahiques et al, , 2013.…”

Section: Study Areamentioning

confidence: 99%

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Two new conceptual models for the formation and degradation of baymouth spits by longshore drift and fluvial discharge (Iguape, SE Brazil)

Alcántara‐Carrió

Dinkel

Portz

et al. 2017

Earth Surf Processes Landf

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This study describes the formation of two successive baymouth spits systems on the south‐eastern Brazilian coast and the degradation of the first system. The study area includes the Jureia Beach spit, the deflected Ribeira de Iguape River mouth, the central Iguape sandy headland, the Icapara Inlet of the Mar Pequeno Lagoon and the northern end of the Comprida Island barrier spit. The wave and river flow patterns were combined with the coastline evolution and the alongshore migration rates deduced from satellite images. Initially, both spits showed convergent alongshore migration rates equal to or less than 83 m/yr. However, the extreme river flow due to high rainfall during a very strong El Niño event in 1983 eroded the inland side of the Jureia Beach spit, which finally retreated due to wave erosion. In 1989, a sand bank emerged in the river mouth, which attached to the central headland forming a recurved northeastward spit. In 1994, the high fluvial discharge associated with another very strong El Niño event caused the landward migration of the new spit and emersion of a second sand bank. This second sand bank merged with the Jureia Beach spit in 1997 at an alongshore migration rate of 1795.6 m/yr. Wave erosion of the central headland continued and the attached spit disappeared in 2000. In 2009, the headland erosion merged the river mouth and the Icapara Inlet, which resulted in flanking baymouth spits in a configuration that remains today. Therefore, two models for the formation of baymouth spits have been documented for wave‐dominated microtidal coasts in humid tropical regions with intense fluvial discharge. The convergent longshore migration of the spits is controlled by both the bidirectional longshore drift and the fluvial discharge, the latter eroding the fronting spit, supplying sediments and acting as a hydraulic blockage for longshore drift. Copyright © 2017 John Wiley & Sons, Ltd.

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Section: Discussionmentioning

confidence: 97%

Section: Study Areamentioning

confidence: 99%

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Two new conceptual models for the formation and degradation of baymouth spits by longshore drift and fluvial discharge (Iguape, SE Brazil)

Alcántara‐Carrió

Dinkel

Portz

et al. 2017

Earth Surf Processes Landf

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“…According to Muehe (1998), it is divided into two different compartments, the Northern Crystalline Scarps Littoral and the Coastal Plains and Estuaries Littoral, the difference between them being essentially related to the position of the Serra do Mar mountain chain from the coast. More recently, in a review of the beach systems and considering a more complex morphology, de Mahiques et al (2016b) divided the coast into six sectors, considering not only Quaternary and Environmental Geosciences (2018) …”

Section: Area Of Studymentioning

confidence: 99%

From sambaquis (shell mounds) to plastic debris: a summary of the geological imprint of human occupation in the coast of São Paulo (Southeast Brazil)

Affonso

Mahiques

Ferreira

et al. 2018

ABEQUA

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In this work, we present a brief revision of the geological evidence of human activities in the coast of São Paulo (Southeast Brazil), from pre-historical times to the present. We analyze case studies in different sectors of the coast, identifying the main historical causes that resulted in environmental changes with their consequent imprint in the sedimentary column. There was a south-to-north trend in the occupation at the colonization period (1500 onwards), essentially determined by differences in the geomorphology of the area. Finally, the accumulation of artificial radionuclides and plastic debris in the sediments is discussed. Keywords: Human occupation; coastline; SE Brazil ResumoNeste trabalho, apresentamos uma breve revisão das evidências geológicas das atividades humanas no litoral de São Paulo (Sudeste do Brasil), desde os tempos pré-históricos até o presente. Analisamos estudos de caso em diferentes setores da costa, identificando as principais causas históricas que resultaram em mudanças ambientais com sua consequente impressão na coluna sedimentar. Havia uma tendência sul-norte na ocupação no período de colonização (1500 em diante), essencialmente determinada por diferenças na geomorfologia da área. Finalmente, o acúmulo de radionuclídeos artificiais e detritos plásticos nos sedimentos é discutido. Palavras-chave: Ocupação humana; litoral; SE do Brasil IntroductionThe definition of the beginning of the Anthropocene in coastal areas is undoubtedly chronologically much younger than the human occupation of the coasts itself (Menzel, 1959;Kaplan, 1980;Stringer, 2000). Actually, the definition of the base of this new epoch is, somehow, still a matter of debate, since the geological/ geochemical evidence of the end of the Holocene can be interpreted in different ways (Steffen et al., 2007;Leorri et al., 2014;Irabien et al., 2015;Zalasiewicz et al., 2015;Waters et al., 2016). It is worth observing that in different coastal and marine areas the evidence goes back to pre-Industrial ages (Crutzen and Steffen, 2003;Martins et al., 2013;Leorri et al., 2014;Irabien et al., 2015).In this paper, we present a brief review of the geological imprint of the human occupation of the coast of São Paulo (Southeast Brazil), an area of a relatively recent historical occupation, caused by different economic activities, but with geological evidence of pre-Columbian settlings. The main aim of this work is to recognize when, why and how the geological records show evidence of the beginning of the Anthropocene in this coastal area. Area of StudyThe area of study corresponds to the coast of São Paulo, a part of the arc-shaped section of the Brazilian margin known as São Paulo Bight (Zembruscki, 1979) (figure 1). This coastal sector has been divided into different forms. According to Muehe (1998), it is divided into two different compartments, the Northern Crystalline Scarps Littoral and the Coastal Plains and Estuaries Littoral, the difference between them being essentially related to the position of the Serra do Mar mou...

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“…The coastal region of São Paulo State has remnant forests of Atlantic Forest, currently part of conservation unit of the "Serra do Mar" State Park (Ramos et al 2011). In addition, this area has suffered major anthropic impacts compared with the entire Brazilian coastline (Burone & Pires-Vanin, 2006;Mahiques et al, 2016), due to the massive increase in urban occupation caused by tourism and nautical activities in the region. Thus, in 2008, the Brazilian government deemed such region a marine environmental protection area (MPA) in order to conserve the local species.…”

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Evaluation of caridean ecological distribution in the Ubatuba region, southeastern Brazilian coast using unsupervised machine learning technique

et al. 2021

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Several human actions can directly or indirectly affect marine environments (O'Hara et al., 2019). Among the anthropic impacts, we highlight bottom-trawling fishery, which is considered one of the main sources of environment perturbation in marine ecosystems (Fransozo et al., 2016;Simpson & Watling, 2006). The northern coast of São Paulo State (Brazil) is highly important for shrimp fishery due to the high abundance of Penaeidean shrimps. Thus, the low selectivity of fishing devices captures several non-target species, known

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The Beaches of the State of São Paulo

Cited by 12 publications

References 29 publications

Two new conceptual models for the formation and degradation of baymouth spits by longshore drift and fluvial discharge (Iguape, SE Brazil)

Two new conceptual models for the formation and degradation of baymouth spits by longshore drift and fluvial discharge (Iguape, SE Brazil)

From sambaquis (shell mounds) to plastic debris: a summary of the geological imprint of human occupation in the coast of São Paulo (Southeast Brazil)

Evaluation of caridean ecological distribution in the Ubatuba region, southeastern Brazilian coast using unsupervised machine learning technique

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