Genetic diversity and metal tolerance of two marine species: a comparison between populations from contaminated and reference sites

Ross, Kirstin; Cooper, Naomi L.; Bidwell, Joseph R.; Elder, John F.

doi:10.1016/s0025-326x(01)00333-2

Cited by 70 publications

(40 citation statements)

References 23 publications

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“…Cu and Cd) (Kägi and Schaffer1988;Mourgaud et al 2002;Amiard et al 2006) and serve as protection against toxicity. Similar to our results, several studies have shown that MT content is increased when the gradient of metal (Cd, Cu, Zn) pollution is increased (Mourgaud et al 2002;Ross et al 2002;Amiard et al 2006). MTs play a major role in the homeostasis of essential metals (such as Zn and Cu) and also in detoxification of nones- sential metals such as Ag, Hg and Cd (Amiard et al 2006).…”

Section: Discussionsupporting

confidence: 92%

Structural and functional alterations in salivary gland chromosomes and enzyme activity ofChironomus ripariusMg. (Diptera, Chironomidae) from anthropogenically polluted sites in Bulgaria and Turkey

et al. 2012

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The effect of environment contaminants on genome instability and changes in enzyme activity (acetylcholinesterase (AChE), glutathione S-transferase activities (GST), etoxyresorufin O-deethylase (EROD) and metallothionein (MT)) of Chironomus riparius Mg. from Bulgarian and Turkish stations over two years (2009, 2010) as well as laboratory reared larvae were studied. Physicochemical analysis of the sediments from the field stations indicated the presence of heavy metal pollutants (Cr, Cu, Mn, Pb, and Cd) whose concentrations were higher than the reference data. Genome instability was determined by somatic structural and functional alterations of the polytene chromosomes. In the field sites of both countries somatic aberrations occurred at a significantly higher frequency (p < 0.001) compared with control and laboratory material. C. riparius in sediments with higher concentrations of trace metals (Derincay River, Turkey and Chaya River, Bulgaria), was found to possess a high spectrum of somatic chromosome rearrangements with a somatic index of 2.53 and 3.25 respectively. Changes in functional activity included decreased activity of the Balbiani rings (BRs) and nucleolar organizer (NOR). The observed chromosome alterations agree with the high degree of trace metal pollution and high activity of the studied enzymes. However, no correlation between single somatic chromosome rearrangements and concentrations of specific metal ions was defined. The data are discussed in the light of the wide variety of interactions of metals in nature. The results show that the genome response and biochemical markers are sensitive markers of toxicity and provide early warning indicators of contaminants in the environment.

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Section: Discussionsupporting

confidence: 92%

Structural and functional alterations in salivary gland chromosomes and enzyme activity ofChironomus ripariusMg. (Diptera, Chironomidae) from anthropogenically polluted sites in Bulgaria and Turkey

et al. 2012

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“…Some authors have noted that in a single species the populations that live in a medium polluted by metals have higher concentrations of MT (e.g. Stuhlbacher et al 1992, Ross et al 2002; therefore, less sensitive stages corresponded to those with the highest MT concentrations (Pavicic et al 1994). Different isoforms of MT probably play different physiological roles, and the dependence on MT in detoxification processes varies environmentally and between zoological groups (Amiard et al 2006).…”

Section: Discussionmentioning

confidence: 99%

High metal contents in the fan mussel <em>Pinna nobilis</em> in the Balearic Archipelago (western Mediterranean Sea) and a review of concentrations in marine bivalves (Pinnidae)

et al. 2011

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Summary:Concentrations of metals (Cd, Cu, Hg, Pb and Zn) in the marine bivalve Pinna nobilis at several coastal locations of Majorca and the Cabrera Islands (Mediterranean Sea) were investigated. The elevated concentrations of metals found in the soft tissues of P. nobilis indicate high bioaccumulation factors. All concentrations and the calculated metal pollution index showed significant differences between sites, with particularly high concentrations in the Cabrera Archipelago, a marine protected area (MPA). The datasets were evaluated with the limited information published in the literature for Pinnidae species worldwide. In benthic P. nobilis, concentrations of Cd, Cu and Zn are more than 30 times higher and Hg and Pb concentrations are 4 and 7 times higher, respectively, than concentrations in other bivalve species, such as Mytilus galloprovincialis (Mytilidae). These observations from species inhabiting nearby ecological habitats of the coastal environment (Pinnidae vs. Mytilidae) are also discussed in the context of current marine monitoring strategies and assessments.Keywords: trace metal; bivalve; mollusc; bioaccumulation; Pinnidae, Mytilidae. Alto contenido de metales en el molusco Pinna nobilis en el Archipiélago Balear (Mediterráneo occidental) y una revisión de las concentraciones en bivalvos marinos (Pinnidae)Resumen: Se investigaron las concentraciones de metales (Cd, Cu, Hg, Pb y Zn) en el bivalvo marino Pinna nobilis en diferentes localidades costeras de las Islas de Mallorca y Cabrera (Mar Mediterráneo). Las elevadas concentraciones de metales que se encontraron en los tejidos blandos de P. nobilis revelaron una elevada bioacumulación. Las concentraciones de metales estudiadas, así como el índice de contaminación por metales (ICM) mostraron diferencias significativas entre los sitios, con concentraciones particularmente altas en el archipiélago de Cabrera, un área marina protegida (AMP). Se realizó una revisión bibliográfica de la escasa información publicada sobre las especies de la familia Pinnidae a nivel mundial. En comparación con otras especies de bivalvos, como Mytilus galloprovincialis (Mytilidae), la especie bentónica P. nobilis presentó concentraciones más de 30 veces superiores para Cd, Cu y Zn; y hasta 4 y 7 veces para Hg y Pb, respectivamente. La información recabada sobre estas especies que habitan en ecosistemas costeros (Pinnidae vs. Mytilidae) es discutida en el contexto de las actuales estrategias marinas de seguimiento y evaluación.Palabras clave: metales traza; bivalvo; molusco; bioacumulación; Pinnidae, Mytilidae.Citation/Como citar este artículo: Vázquez-Luis M., Morató M., Campillo J.A., Guitart C., Deudero S. 2016. High metal contents in the fan mussel Pinna nobilis in the Balearic Archipelago (western Mediterranean Sea) and a review of concentrations in marine bivalves (Pinnidae). Sci. Mar. 80(1): 000-000. doi: http://dx

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“…Un número extenso de estudios llevado en los laboratorios con diferentes especies marinas han mostrado cómo la absorción de metales pesados afecta ciertos genotipos, alterando consecuentemente los diferentes genes [10]. Esta alteración ha producido una reducción de diversidad genética que podría llevar potencialmente a la inestabilidad de la población, incrementando el riesgo de desaparición de poblaciones en los ecosistemas [36].…”

Section: Tabla V Concentraciones Promedios De Metales (µG/g) Y Valoreunclassified

Cuantificación De Las Concentraciones De Metales Pesados en Tejidos De Peces Y Crustáceos De La Laguna De Unare, Estado Anzoátegui, Venezuela.

Márquez¹,

Senior²,

Fermín³

et al. 2016

Preprint

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RESUMENSe analizó por Espectrofotometría de Absorcion Atomica de llama el contenido de Fe, Mn, Cu, Cr, Ni, Zn, Cd y Pb en tejidos musculares de peces y crustáceos de la laguna de Unare, estado Anzoátegui, Venezuela. Adicionalmente, se determinaron los niveles en el material en suspension del agua y en el sedimento para detectar posibles impactos en el ecosistema. En el agua, las concentraciones medias de metales fueron bajos (0,104-0,53 µmol/L Fe; 0,004-0,06 µmol/L Mn; 0,002-0,028 µmol/L Zn; 0,004-0,012 µmol/L Cr; no detectado-0,011 µmol/L Ni y no detectado-0,001 µmol/L Cd). En el sedimento se evidencia intervención antropogénica con valores medios que decrecen Mn (516,37)>Zn (127,49)>Ni (52,41)>Cr (51,69)>Cu (41,13)>Pb (29)>Cd (1,51 µg/g) y que superan los niveles establecidos para sedimentos no contaminados. En los tejidos de los organismos se detectó la presencia de metales tóxicos como el plomo y cadmio que superan los 0,16 y 0,04 µg/g, respectivamente, al igual que el zinc que alcanza niveles elevados que sobrepasan 17 µg/g en la mayoría de las especies. Las pruebas estadísticas de ANOVA (P<0,05) indican discrepancias en las concentraciones metales en los tejidos por los diferentes géneros y especies, al igual que en los valores de los individuos de la misma especie (Cathorops spixii) que habitan dentro y fuera de la laguna. Los niveles son mayores en los habitantes del interior de la laguna evidenciando fenóme-nos de bioacumulación. La investigación confirman un progresivo deterioro ambiental de la laguna y de las especies ícticas de este ecosistema que son comercializadas por las poblaciones aledañas a la laguna, las cuales sustentan su economía de su explotación pesquera.Palabras clave: Peces, tejidos, metales, laguna costera, degradación. ABSTRACTThe content of Fe, Mn, Cu, Cr, Ni, Zn, Cd and Pb in muscle tissues of fish and crustaceans from the Unare lagoon (Laguna de Unare) in the state of Anzoátegui, Venezuela, was analyzed by flame Atomic Absorption Spectrometry. The levels of these metals present in suspended material of the water and in sediments were also determined in order to detect possible impact on the ecosystem. The mean concentrations in the water were low ( ), all of which are greater than established levels for uncontaminated sediments. Toxic metals were detected in the examined organisms, such as lead and cadmium with levels above 0.16 and 0.04 µg/g, respectively, and zinc with levels greater than 17 µg/g in the majority of the species. ANOVA statistical tests (P < 0.05) show discrepancies in the concentrations or the metals in the tissues of the different genera and species, as well as in the values for individuals of the same species (Cathorops spixii) which live inside and outside of the lagoon. The levels are higher in those which live within the lagoon, 73Recibido: 02 /

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Genetic diversity and metal tolerance of two marine species: a comparison between populations from contaminated and reference sites

Cited by 70 publications

References 23 publications

Structural and functional alterations in salivary gland chromosomes and enzyme activity ofChironomus ripariusMg. (Diptera, Chironomidae) from anthropogenically polluted sites in Bulgaria and Turkey

Structural and functional alterations in salivary gland chromosomes and enzyme activity ofChironomus ripariusMg. (Diptera, Chironomidae) from anthropogenically polluted sites in Bulgaria and Turkey

High metal contents in the fan mussel <em>Pinna nobilis</em> in the Balearic Archipelago (western Mediterranean Sea) and a review of concentrations in marine bivalves (Pinnidae)

Cuantificación De Las Concentraciones De Metales Pesados en Tejidos De Peces Y Crustáceos De La Laguna De Unare, Estado Anzoátegui, Venezuela.

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