2018
DOI: 10.3389/feart.2018.00025
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Diversions of the Ribeira River Flow and Their Influence on Sediment Supply in the Cananeia-Iguape Estuarine-Lagoonal System (SE Brazil)

Abstract: The Cananéia-Iguape system is a combined estuarine-lagoonal sedimentary system, located along the SE coast of Brazil. It consists of a network of channels and islands oriented mainly parallel to the coast. About 165 years ago, an artificial channel, the Valo Grande, was opened in the northern part of this system to connect a major river of the region, the Ribeira River, to the estuarine-lagoon complex. The Valo Grande was closed with a dam and reopened twice between 1978 and 1995, when it was finally left open… Show more

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Cited by 9 publications
(6 citation statements)
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“…It has a great environmental and economic importance, as it is nursery for several species (Mahiques et al, 2013). In addition, the whole system suffered huge changes since the 19th century after the opening of the Valo Grande artificial channel, which connected the Ribeira de Iguape River to the system (Geobrás, 1966;Cornaggia et al, 2018).…”
Section: Study Areamentioning
confidence: 99%
See 1 more Smart Citation
“…It has a great environmental and economic importance, as it is nursery for several species (Mahiques et al, 2013). In addition, the whole system suffered huge changes since the 19th century after the opening of the Valo Grande artificial channel, which connected the Ribeira de Iguape River to the system (Geobrás, 1966;Cornaggia et al, 2018).…”
Section: Study Areamentioning
confidence: 99%
“…The Cananéia-Iguape sedimentary plain is bordered by a Precambrian crystalline metamorphic basement arc, named Serra do Mar which is bounded to the Açungui Group (Souza et al, 1996;Tessler, 1982) and is marked by uplifting of a series of Mesozoic intrusive alkaline complexes. As an example, the Cananéia alkaline rock massif (São João Hill) is a small elevation densely vegetated, with 137 m maximum height and about 450 m² area (Cornaggia et al, 2018). Furthermore, Comprida Island also hosts a smaller rocky massif namely Morrete (Riccomini, 1995).…”
Section: Study Areamentioning
confidence: 99%
“…This part of the estuarine complex is better preserved than the northern area of the estuarine complex system because it is significantly influenced by the ocean, which conserves the natural conditions attributed to tide influxes and sea hydrodynamics (Braga & Chiozzini 2008. The northern region of this estuary receives a high freshwater inflow due to its proximity to the Ribeira de Iguape River, which brings with it an inflow of different materials from the continent as it passes through the Valo Grande (an artificial drainage channel) (Cornaggia et al 2018).…”
Section: Introductionmentioning
confidence: 99%
“…Thus, studies with bioindicator species, such as the Ariidae representatives C. spixii and G. genidens (Azevedo et al, 2009;Azevedo et al, 2012;Maciel et al, 2018), are very important, since they can be used to improve knowledge about life history, growth, and habitat use (Avigliano et al, 2014), in association with subcellular biochemical, genetic, and histological responses (Chovanec et al, 2003;Azevedo et al, 2013). Although the CIELC is anthropogenically influenced by continental discharges in the northern area, by the Ribeira de Iguape River inflow via Valo Grande (Mahiques et al, 2009(Mahiques et al, , 2013Cornaggia et al, 2018), this estuarine system still has characteristics of a healthy ecosystem based on its hydrobiogeochemical characteristics (Chiozzini et al, 2010;Amaral et al, 2021). Therefore, the use of otolith measurements as a predictor of temporal changes in fish from the CIELC is highly valid.…”
Section: Introductionmentioning
confidence: 99%