Biota de fundos carbonáticos da plataforma continental da Bacia de Campos: algas calcárias e fauna associada

Curbelo-Fernandez, Maria Patricia; Giustina, Ivan Daniel Della; Loiola, Livia de Laia; Arantes, Renata Carolina Mikosz; Moura, Rafael Bendayan de; Barboza, Carlos Alberto de Moura; Nunes, Frederico Silva; Tâmega, Frederico Tapajós de Souza; Henriques, Maria Carolina; Figueiredo, Márcia Feijão de; Falcão, Ana Paula; Rosso, Sérgio

doi:10.1016/b978-85-352-7295-6.50002-6

Cited by 2 publications

(1 citation statement)

References 38 publications

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“…Indeed, the Northern sector middle and outer shelf present several carbonate bioconstructions fields (Cavalcanti et al, 2012;Reis et al, 2013). These massive structures are similar to the rhodolith and coralline algae reef patches observed at Campos (Lopes et al, 2014;Tâmega et al, 2014;Figueiredo Jr. et al, 2016;Curbelo-Fernandez et al, 2017) and Espírito Santo (Bastos et al, 2015;Vieira et al, 2019;Oliveira et al, 2020) basins, including aggregates, terraces, pinnacles, rhodoliths mounds, crustose calcareous algae, bryozoans, gastropods, bivalves, and others, creating a rough relief in the ocean bottom (Figures 3I and 5II).…”

Section: Discussionmentioning

confidence: 83%

Santos Basin continental shelf morphology, sedimentology, and slope sediment distribution

2023

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The ocean bottom morphology, depth, sediment grain size, sediment sorting, carbonate content, and water depth are used to compose seafloor maps as support for biological studies. Sediments are reworked by waves and currents and accumulate according to the hydrodynamic level on the continental shelf. In contrast, sediments are accumulated by pelagic settling, mass wasting, turbidity flows, and boundary currents on the slope. Sea level oscillations during the Quaternary also played an important role in modifying the shelf seabed's morphology and sedimentary mosaic composition. The work addresses these topics in the Santos Basin based on extensive bathymetric data, shallow seismic records, and stratified bottom sediment samples in water depths ranging from 25 to 2,400m, as part of The Santos Basin Regional Environmental Characterization Project (PCR-BS). The main objective is to provide broad background information on the sedimentology and morphology of Santos Basin, focusing on the continental shelf. The morphology, sediment supply, shelf orientation, and ocean climate imprint the Santos Basin's characteristics. The Northern shelf sector is the most dynamic because of the narrow shelf, steep gradient, and East-West shoreline orientation, providing conditions for storm waves to approach and mobilize sediment in the ocean bottom shallow than 50 m water depth. The Southern sector of the shelf is much broader than the Northern sector; it displays a gentler gradient, and its orientation is Northeast-Southwest; therefore, less subject to storm waves than the Northern sector.

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Section: Discussionmentioning

confidence: 83%

Santos Basin continental shelf morphology, sedimentology, and slope sediment distribution

2023

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Catalogue of living crinoids (Echinodermata: Crinoidea) from Brazil

Gondim

Moura

Christoffersen

2021

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Knowledge of living crinoids from Brazil is chiefly restricted to the contributions of Dr Luis Roberto Tommasi between the decades of 1950 and 1970. Herein we present an updated catalogue of the crinoids occurring along the Brazilian coast, including data on synonyms, type localities, type material, geographical distribution, bathymetric ranges, and occurrences of species along the coast. The data is based on an extensive revision of the literature and on a survey of several databases. A total of 20 species were catalogued, of which two are endemic (Phrixometra longipinna var. brasiliensis and Thaumatometra minutissima). According to information from the literature, P. longipinna var. brasiliensis represents an undescribed taxon. Although Brazil supports the greatest number of crinoid species in the Southwestern Atlantic, its crinoid fauna remains understudied and likely underestimated. Research on crinoids remains a subject of great potential, not only for taxonomy but also for other areas of knowledge.

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Biota de fundos carbonáticos da plataforma continental da Bacia de Campos: algas calcárias e fauna associada

Cited by 2 publications

References 38 publications

Santos Basin continental shelf morphology, sedimentology, and slope sediment distribution

Santos Basin continental shelf morphology, sedimentology, and slope sediment distribution

Catalogue of living crinoids (Echinodermata: Crinoidea) from Brazil

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