Effect of mareb crude oil, dispersed oil and dispersant (OSD) on filtration rates of the clams Tivela ponderosa under laboratory conditions
Journal Title: European Journal of Biological Research - Year 2016, Vol 6, Issue 1
Abstract
This study includes laboratory experiments of filter-feeding activity of bivalves Tivela ponderosa. The filtration rate of bivalves Tivela ponderosa was controlled hourly at 5th and 10th day (every two and six hours). The bivalve Tivela ponderosa is exposed to 0.5 ml, 1.0 ml and 1.5 ml/l of three chemicals test (Crude oil, Crude oil with Dispersant and Dispersant OSD) in addition to liter of seawater through experimental time. Results of the study showed that the Dispersant had a less effect than Crude oil or a mixture of oil with dispersant. A mixture of oil with dispersant is more effect on filter-feeding activity of Tivela ponderosa. There are no mortalities during the early 5 days for the three different chemicals test. Bivalves are usually increased in her activity during the first 2 hours and decreased during the next 6 hours of the experiments. The filtration rate of exposed clams was reduced in comparison with the control especially in the presence of polluted chemicals. The condition index of the exposed clams significantly reduced with respect to the control index, which indicated that the treated clams had an uncomfortable condition with low food intake and high energy demand to counteract the toxic effect of toxic chemicals.
Authors and Affiliations
Nada A. Hassan, Aziz S. Dobian, Elham Al-Shaibani, Nabil A. Al-Shwafi
Keywords
Related Articles
- EP ID EP230345
- DOI -
- Views 132
- Downloads 0
Immunosuppressive and cytotoxic potential of aqueous leaves extract of Thlaspi arvense
Medicinal plants are traditionally used in Asian countries for treatment of various intracellular as well as extracellular infections. The present study was undertaken to investigate Thlaspi arvense for determining its i...
Antioxidative changes in Citrus reticulata L. induced by drought stress and its effect on root colonization by arbuscular mycorrhizal fungi
The objective of the study is to understand drought induced oxidative stress scavenging mechanism in Citrus reticulata in order to understand the interplay between different biochemical components and antioxidants within...
Enzyme producing capabilities of some extremophilic fungal strains isolated from different habitats of Wadi El-Natrun, Egypt. Part 2: Cellulase, xylanase and pectinase
Forty isolates of the most commonly encountered fungal species from different extreme habitats of Wadi El-Natrun region were tested for their capabilities of producing cellulase, xylanase and pectinase enzymes. Most of t...
Biosynthesis of anti-inflammatory immunosuppressive metabolite by Streptomyces variabilis ASU319
Most immunosuppressive agents were initially developed as antibiotics produced by the genus Streptomyces. This investigation was devoted to explore the bioactive metabolite of the Streptomyces variabilis ASU319 extract a...
Growth curve of Streptococcus oralis
Difference between the artificial transformation in Gram-negative E. coli K-12 (gene cloning with double stranded DNA) and natural transformation in diplococcic Gram-positive Streptococcus has been ignored. The artificia...