Assessment of the health quality of Ria de Aveiro (Portugal): Heavy metals and benthic foraminifera

Martins, V.; Frontalini, Fabrizio; Tramonte, Keila Modesto; Figueira, Rubens César Lopes; Miranda, Paulo; Sequeira, Cristina; Fernández-Fernández, Sandra; Dias, João Alveirinho; Yamashita, Cintia; Renó, Raquel; Laut, Lázaro; Silva, Frederico S.; Rodrigues, Maria Antonieta da Conceição; Bernardes, Cristina; Nagai, Renata Hanae; Sousa, Silvia Helena de Mello e; Mahiques, Michel Michaelovitch de; Armesto, Belén Rubio; Bernabéu, Ana M.; Rey, D.; Rocha, Fernando

doi:10.1016/j.marpolbul.2013.02.003

Cited by 106 publications

(76 citation statements)

References 82 publications

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“…as sub-dominant, ephemeral-occurrence taxa. Martins et al (2010Martins et al ( , 2013 found H. germanica to be the most abundant species, followed by A. tepida, in the Ria de Aveiro, NW Portugal. In the Guadiana Estuary, H. germanica is not as prominent as Ammonia spp.…”

Section: Middle Estuarymentioning

confidence: 99%

Taxonomy, ecology and biogeographical trends of dominant benthic foraminifera species from an Atlantic-Mediterranean estuary (the Guadiana, southeast Portugal)

Camacho

Moura

Connor

et al. 2015

Palaeontologia Electronica

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Section: Middle Estuarymentioning

confidence: 99%

Taxonomy, ecology and biogeographical trends of dominant benthic foraminifera species from an Atlantic-Mediterranean estuary (the Guadiana, southeast Portugal)

Camacho

Moura

Connor

et al. 2015

Palaeontologia Electronica

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“…Only concentrations of As, Cd, Co, Cr, Cu, Ni, Pb, Zn and Mn were considered. The enrichment of some chemical elements whose higher concentrations may be toxic was calculated using the Pollution Load Index (PLI) following Martins et al (2013).…”

Section: Environmental Parameter Analysesmentioning

confidence: 99%

The nematode assemblage of a coastal lagoon (Lake Varano, southern Italy): ecology and biodiversity patterns

Semprucci¹,

Balsamo²,

Frontalini³

2014

Sci. Mar.

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Summary:This study was conducted in Lake Varano (southern Italy) in order to determine the environmental parameters that influence nematode taxonomic and functional diversity and how they influence them, and to classify for the first time the ecological quality status of a transitional environment. The general composition and level of taxonomic diversity were comparable with those reported for transitional environments worldwide. Principal component analysis revealed that the main environmental factors controlling the assemblages in terms of both composition and biological traits were grain size, organic matter, pollution load index and, only secondarily, salinity. Molgolaimus allgeni, Terschellingia longicaudata and Leptolaimus luridus showed higher values in relation to silt, organic matter and pollution load index, while Axonolaimus caudostriatus, Odontophora wieseri, Paramonhystera pellucida and Paracanthonchus longicaudatus showed higher values in relation to the redox potential and sand percentage. Salinity was detected as an influencing parameter only secondarily and particularly for Calomicrolaimus honestus, Daptonema normandicum, Thalassomonhystera parva and Sabatieria pulchra. With respect to functional traits, the trophic groups seemed to be mainly related to sediment type, which is in turn reflected by the nature of the available food. The maturity index, as well as c-p classes, did not always permit a clear interpretation of the interaction between anthropogenic and natural factors. However, the greater influence of the San Antonino and San Francesco Canals was perfectly revealed by the nematode assemblage. In accordance with the current ecological quality classes, Lake Varano can mainly be classified as having good to poor ecological quality status.Keywords: free-living nematodes; biodiversity; transitional environment; ecological quality; Lake Varano.La comunidad de nematodos de una laguna costera (Laguna de Varano, Italia meridional): patrones de la ecología y la biodiversidad Resumen: Este estudio tiene como objetivo analizar cuál y en qué medida los parámetros ambientales influyen en la diversidad taxonómica y funcional de los nematodos y clasificar por primera vez el Estado de la Calidad Ecológica (EQS) de un ambiente de transición como la laguna de Varano (Italia meridional). La composición y el nivel de divesidad taxonómica son comparables con los reportados en todo el mundo para TEs. El análisis de componentes principales reveló que los factores que controlan la composición y las características biológicas de las comunidades son el tamaño del gránulo, la materia orgá-nica (MO), el índice de aportes contaminados (PLI) y sólo secundariamente la salinidad. Molgolaimus allgeni, Terschellingia longicaudata y Leptolaimus luridus aumentan en número en relación con el limo, la MO y el PLI, mientras Axonolaimus caudostriatus, Odontophora wieseri, Paramonhystera pelúcida y Paracanthonchus longicaudatus muestran valores más altos en relación con el potencial redox y el porcentaje de arena. La salinida...

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“…It has been well-established that the distribution of foraminifera in coastal environments is a function of nutrients, organic matter, and hydrocarbons as well as other physicochemical parameters [24]. The high standing crop in the polluted transect could be due to the higher availability of biodegradable organic matter that might have promoted the increase of the foraminiferal population [8,9,25]. Accordingly, some studies indicate that the organic matter favors higher foraminiferal populations directly by providing food and indirectly by reducing predation and/or competition [26].…”

Section: Discussionmentioning

confidence: 99%

“…Many studies have documented increased numbers of foraminiferal tests in organic-rich areas [7][8][9]. In fact, benthic foraminifera might benefit from the presence of organic matter that directly represents a source of food and might indirectly reduce predation and/or competition, particularly when sediments experience oxygen deficiency [10].…”

Section: Introductionmentioning

confidence: 99%

Benthic Foraminifera in Eastern Bahrain: Relationships With Local Pollution Sources

Arslan¹,

Kaminski²,

Khalil³

et al. 2017

Pol. J. Environ. Stud.

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This preliminary study tracks the response of living benthic foraminifera at a polluted site in eastern Bahrain, with the aim to determine the effects of recent anthropogenic pollution on their distribution patterns and morphological deformities. The boat harbor in Askar, Bahrain is subjected to pollution by nutrients, organic matter, and hydrocarbons. Foraminiferal density is found to be higher at the polluted site compared with a nearby unpolluted site, suggesting a possible higher amount of available nutrients for the benthic foraminifera. Seven taxonomical groups were recognized in the polluted transect, including Ammonia, Glabratellina, Murrayinella, Elphidium, Brizalina, miliolids, and peneroplids. By comparing the foraminiferal assemblages with a nearby unpolluted transect, the genus Murrayinella appeared to be a dominant and pervasive taxon, as it was able to proliferate in the organically polluted environment. The results are contradictory to previously published findings on modern foraminiferal assemblages in the Arabian Gulf, as Murrayinella is rarely reported. However, the population of miliolids was drastically reduced at the polluted site due to high organic matter pollution, which might support the sensitive nature of this taxonomic group. In any case, the miliolids can be considered as a pollution proxy for future biomonitoring studies in the region.Keywords: Arabian Gulf, pollution, benthic foraminifera, foraminiferal density, Glabratellina, Murrayinella 970 Arslan M., et al.

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Assessment of the health quality of Ria de Aveiro (Portugal): Heavy metals and benthic foraminifera

Cited by 106 publications

References 82 publications

Taxonomy, ecology and biogeographical trends of dominant benthic foraminifera species from an Atlantic-Mediterranean estuary (the Guadiana, southeast Portugal)

Taxonomy, ecology and biogeographical trends of dominant benthic foraminifera species from an Atlantic-Mediterranean estuary (the Guadiana, southeast Portugal)

The nematode assemblage of a coastal lagoon (Lake Varano, southern Italy): ecology and biodiversity patterns

Benthic Foraminifera in Eastern Bahrain: Relationships With Local Pollution Sources

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