Results 161 to 170 of about 1,229 (195)

Metabolic responses of clams, Ruditapes decussatus and Ruditapes philippinarum , to short-term exposure to lead and zinc

Marine Pollution Bulletin, 2016
This study investigated the effects of 48h heavy metal exposure upon the metabolic profiles of Ruditapes decussatus and Ruditapes philippinarum using (1)H NMR metabolomics. Both species were exposed to increasing concentrations of lead nitrate (10, 40, 60 and 100μg/L) and zinc chloride (20, 50, 100 and 150μg/L), under laboratory conditions.
ARU, VIOLETTA, SARAIS, GIORGIA, Savorani, F, Engelsen, SB, CESARE MARINCOLA, FLAMINIA   +4 more
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Genetic responses to metal contamination in two clams: Ruditapes decussatus and Ruditapes philippinarum

Marine Environmental Research, 2002
Coastal ecosystems are subjected to a wide variety of disturbances, including those due to xenobiotics of agricultural and industrial origin. These pollutants as heavy metals can modify the genetic diversity of populations by favouring or counter-selecting certain alleles or genotypes by differential mortality. In the present study, two genetic markers
Moraga, D, Mdelgi-Lasram, E, Romdhane, M.S, Abed, A.El, Boutet, I, Tanguy, A, Auffret, M   +6 more
openaire   +3 more sources

The influence of different microalgal diets on European clam (Ruditapes decussatus, Linnaeus, 1758) larvae culture performances

Aquaculture Research, 2015
The European clam, Ruditapes decussatus is a species with high commercial importance in Portugal and other Southern European countries. However, the development of R.
Domitilia Matias, Radhouan Ben-Hamadou, Sandra Joaquim   +2 more
exaly   +2 more sources

Effect of Copper and Lindane on Some Biomarkers Measured in the Clam Ruditapes decussatus

Bulletin of Environmental Contamination and Toxicology, 1998
A Hamza-Chaffai, M Romeo, M Gnassia-Barelli   +2 more
exaly   +3 more sources

Effects of Permethrin on Biomarkers in Mediterranean Clams (Ruditapes decussatus)

Bulletin of Environmental Contamination and Toxicology, 2014
The present study was focused on the assessment of Catalase (CAT) and Acetylcholinesterase (AChE) activities in Mediterranean clams (Ruditapes decussatus) exposed to 50, 100 and 150 μg/L of Permethrin for 5, 10, 15, 20 and 25 days. In water, the measured concentrations of Permethrin in the treated aquariums were respectively 16.66, 38.24 and 55.61 μg/L.
B, Sellami, A, Khazri, H, Louati, F, Boufahja, M, Dellali, D, Sheehan, P, Aissa, M Ridha, Driss, E, Mahmoudi, H, Beyrem   +9 more
openaire   +2 more sources

Spatial and seasonal biomarker responses in the clamRuditapes decussatus

Biomarkers, 2012
The clam Ruditapes decussatus is an important resource to preserve in coastal lagoon systems around the Mediterranean including the South Portugal. To assess spatial and temporal biomarker responses to contamination in the species, a multibiomarker approach was conducted using antioxidant enzymes, MFO system phase I and II; acetylcholinesterase ...
Alexandra, Cravo, Belisandra, Lopes, Angela, Serafim, Rui, Company, Luísa, Barreira, Tânia, Gomes, Maria J, Bebianno   +6 more
openaire   +2 more sources

Polycyclic aromatic hydrocarbons in clams Ruditapes decussatus (Linnaeus, 1758)

Journal of Environmental Monitoring, 2007
The concentration of sixteen individual polycyclic aromatic hydrocarbons (PAHs) was measured in the clam Ruditapes decussatus whole soft tissues from several places of the Ria Formosa lagoon (Portugal). Total PAH (tPAH) concentrations were higher in the summer (August) and winter (January) than in the other months and the distribution pattern of the ...
Luísa A, Barreira, Stephen M, Mudge, Maria J, Bebianno   +2 more
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In situ endocrine disrupting effects of cadmium on the reproduction of Ruditapes decussatus

Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology, 2007
The gulf of Gabès is well known for its multiple contaminations which are closely associated with the past and present industrial and anthropogenic activity. In order to evaluate in situ the cadmium bioaccumulation in the clam Ruditapes decussatus sampled in this area, we measured cadmium concentrations in the whole soft tissues and in the digestive ...
I, Ketata, W, Smaoui-Damak, F, Guermazi, T, Rebai, A, Hamza-Chaffai   +4 more
openaire   +2 more sources

Morphological Characterization of the Hemocytes of the Clam,Ruditapes decussatus(Mollusca: Bivalvia)

Journal of Invertebrate Pathology, 1997
Hemocytes play an important role in internal defence in molluscs. The morphology of hemolymph cells was studied for the first time in Ruditapes decussatus. Two main types of hemocytes (hyalinocytes and granulocytes) exist in R. decussatus. Three types of granulocytes were identified by light microscopy, in accordance with the presence of basophilic or ...
C, López, M J, Carballal, C, Azevedo, A, Villalba   +3 more
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Effects of depuration on the element concentration in bivalves: Comparison between sympatric Ruditapes decussatus and Ruditapes philippinarum

Estuarine, Coastal and Shelf Science, 2012
Abstract Organisms living in coastal ecosystems are frequently subjected to anthropogenic pressures such as metals. Metals, especially those not required for metabolic activity (e.g. mercury, lead and cadmium) can be toxic even at quite low concentrations not only to organisms that accumulate them, but also to their consumers.
Freitas, R., Ramos Pinto, L., Sampaio, M., Costa, A., Silva, M., Rodrigues, A. M., Quintino, V., Figueira, E.   +7 more
openaire   +2 more sources