Comparison between the dead and living benthic foraminiferal assemblages in Aveiro Lagoon (Portugal)

Martins, Maria Virgínia Alves; Hohenegger, Johann; Frontalini, Fabrizio; Miranda, Paulo; Rodrigues, Maria Antonieta da Conceição; Dias, João Alveirinho

doi:10.1016/j.palaeo.2016.05.003

Cited by 14 publications

(10 citation statements)

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“…In the majority of the stations, C/S ratio points out to the presence of sediments with oxidizing conditions except in IT08, IT10 and IT11 located in the inner area of the lagoon, which exhibits more reductive conditions. The prevalence of low currents activity in this zone allows the accumulation of fine grained sediments and the settlement of organic materials, as observed in other coastal systems (Martins et al, 2013;2015a;2016b).…”

Section: Carbohydrates (Mg G -1 )mentioning

confidence: 65%

“…Several studies have demonstrated that the sedimentary OM content and its composition, namely refractory and labile fractions, are important indicators of the trophic state and influence the ecosystem functioning (Pusceddu et al, 2011, Clemente et al, 2015Martins et al, 2015aMartins et al, , 2016b.…”

Section: Introductionmentioning

confidence: 99%

“…High quality of OM is essential for maintaining a healthy ecosystem (Clemente et al, 2015;Martins et al, 2015aMartins et al, , 2016b. It contributes to a wide range of ecological functions such as supplying food to the microbes that are the base of the food chain.…”

Section: Introductionmentioning

confidence: 99%

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Ecological Status Evaluation of Itaipu Lagoon (Niterói) Based on Biochemical Composition of Organic Matter

et al. 2016

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2016. Ecological status evaluation of Itaipu Lagoon (Niterói) based on biochemical composition of organic matter. Journal of Sedimentary Environments, 1(3): 297-315. AbstractThe variety of approaches for assessing the trophic environmental state indicates that there is a strong need for the identification of new and possibly integrated ecological descriptors in coastal marine areas. These approaches would be able to capture relevant variables associated with the eutrophication process, and would be reliable, applicable and valid worldwide. The main objective of this study was to provide evidence that the quantity of total organic carbon (TOC), total sulfur (TS) and biopolymeric carbon (BPC) is useful proxies to evaluate the benthic trophic status in transitional marine environments. Sediment samples collected in Itaipu Lagoon, a Brazilian coastal system of the State of Rio de Janeiro, were analyzed in this study. Geochemical data, such as TOC, TS and BPC concentrations, including proteins (PTN), carbohydrates (CHO) and lipids (LIP), are combined with additional environmental parameters of the bottom water measured in in Itaipu Lagoon. The analysis of quantity and quality of organic matter (OM) allowed the identification of three distinct regions in Itaipu Lagoon: an inner and impacted zone characterized by sediment particularly enriched in TOC, with lower quality of OM most probably provided by the contaminated effluents and rivers runoff; an outer-less impacted lagoonal area with relatively low TOC content where the highest values of BPC/TOC and PTN/TOC are indicative of the presence of OM with high nutritional quality; and an intermediate area characterized by transitional features between the two previously described. The organic matter accumulation depends on the hydrodynamic conditions mostly governed by tidal currents. The quality of organic matter seems to be mainly influenced by municipal effluents, rivers inputs and mangroves contributions as well as by the autochthonous lagoonal biological productivity. Results of this work indicate that the inner zone of Itaipu Lagoon is being affected by eutrophication.

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Section: Carbohydrates (Mg G -1 )mentioning

confidence: 65%

Section: Introductionmentioning

confidence: 99%

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Ecological Status Evaluation of Itaipu Lagoon (Niterói) Based on Biochemical Composition of Organic Matter

et al. 2016

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“…It also provides a check list of most of the species found in this region both in living and total (living plus dead) assemblages and updated taxonomic data and illustrations of the most common species. It includes a compilation of data obtained in 334 surface sediment samples by: Martins et al (2010Martins et al ( , 2013Martins et al ( b, 2016b for living foraminiferal assemblages in Aveiro Lagoon; Martins et al (2014Martins et al ( , 2016 for the dead associations in Aveiro Lagoon and; Martins et al (2012) for total assemblages in Aveiro continental shelf and upper slope and; Martins et al (2017Martins et al ( , 2019 for the living and dead assemblages in Aveiro continental shelf.…”

Section: Methodsmentioning

confidence: 99%

“…A few works have been also performed in transitional areas (e.g. Fatela et al, 2007;Martins et al, 2010Martins et al, , 2013Martins et al, a, 2016Moreno et al, 2014;Camacho et al, 2015;Laut et al, 2016).…”

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Foraminifera Check List and the Main Species Distribution in the Aveiro Lagoon and Adjacent Continental Shelf (Portugal)

et al. 2019

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This work is based on a compilation of benthic foraminiferal data collected in the Aveiro Lagoon and in the adjacent continental shelf and upper slope (center of Portugal). It intends to provide an overall analysis from transitional to the outer continental shelf of the occurrence and distribution of species in living and to present updated taxonomic data and illustrations of most of the species found in the in the Aveiro Lagoon and in the adjacent continental shelf including in total assemblages. Cluster analysis (CA) and Principal Components Analysis (PCA) interpreted as depth functions allow us to identify the main species in different ecoenvironments and sectors of the study area. The most unusual living assemblage was documented in the lagoon inlet under very strong tidal currents activity, composed mostly by the following species (both in living and total assemblages): Rotaliammina concava, Lepidodeuterammina ochracea, Quinqueloculina seminula, Gavelinopsis praegeri, Paratrochammina haynesi, Remaneica helgolandica and Remaneicella gonzalezi. The distribution patterns of some Trochamminidae and Remaneicidae species whose ecology and distribution pattern are poorly known, have proved to be a marker of more or less hydrodynamic and stable/unstable environments in coastal and transitional marine environments. OCORRÊNCIA DE FORAMINÍFEROS E DISTRIBUIÇÃO DAS PRINCIPAIS ESPÉCIES NA LAGOA DE AVEIRO E NA PLATAFORMA CONTINENTAL ADJACENTE (PORTUGAL)ResumoEste trabalho baseia-se numa compilação de dados foraminíferos bentónicos recolhidos na Laguna de Aveiro e na plataforma continental adjacente (centro de Portugal). Pretende efetuar uma análise geral da distribuição de espécies nas associações vivas e totais (vivas e mortas) na área de estudo, em função da profundidade. Pretende ainda apresentar dados taxonómicos e ilustrações da maioria das espécies encontradas na Laguna de Aveiro e na plataforma continental adjacente. A análise de agrupamento (CA) e a análise de componentes principais (PCA), em função da profundidade, permitem identificar as principais espécies em diferentes ecossistemas e setores da área de estudo. A associação viva mais invulgar foi encontrada na embocadura da Laguna de Aveiro, um ambiente sujeito a forte corrente de maré. Essa associação era composta principalmente pelas seguintes espécies (na associação viva e total): Rotaliammina concava, Lepidodeuterammina ochracea, Quinqueloculina seminula, Gavelinopsis praegeri, Paratrochammina haynesi, Remaneica helgolandica and Remaneicella gonzalezi. Os padrões de distribuição de algumas espécies de Trochamminidae e Remaneicidae, cuja ecologia e padrão de distribuição são pouco conhecidos, mostraram ser um marcador de ambientes mais ou menos hidrodinâmicos e de estabilidade/instabilidade do substrato em ambientes marinhos costeiros e de transição. Palavras-chave: Ecologia. Taxonomia. Imagens digitais. Análise Estatística. Ambientes Transicionais e Costeiros Marinhos.

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Impacts of hydrodynamics and pollutants on foraminiferal fauna distribution in the Santos Estuary (SE Brazil)

Damasio

Timoszczuk

Kim

et al. 2020

J. Sediment. Environ.

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Comparison between the dead and living benthic foraminiferal assemblages in Aveiro Lagoon (Portugal)

Cited by 14 publications

References 87 publications

Ecological Status Evaluation of Itaipu Lagoon (Niterói) Based on Biochemical Composition of Organic Matter

Ecological Status Evaluation of Itaipu Lagoon (Niterói) Based on Biochemical Composition of Organic Matter

Foraminifera Check List and the Main Species Distribution in the Aveiro Lagoon and Adjacent Continental Shelf (Portugal)

Impacts of hydrodynamics and pollutants on foraminiferal fauna distribution in the Santos Estuary (SE Brazil)

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