Effect of Water Soluble Fractions of Diesel and Biodiesel on Larvae of the Giant Freshwater Prawn, Macrobrachium rosenbergii, under Different Thermal Conditions
Year: 2016
Type: article
Abstract: The present study focused on the comparative effect of the Water Soluble Fraction (WSF) of biodiesel and diesel on larval stages of Macrobrachium rosenbergii at different temperatures. The results revealed that biodiesel WSF is less soluble than that of diesel WSF. Both of them have lower water solubility with increasing water salinity. After 96 h, diesel WSF caused approximately 50 % mortality in 8 days old larvae (PL8) at all tested temperatures which were significantly higher than that of biodiesel WSF (less than 15 % mortality) and the control (0 - 10 %) ( p < 0.05). The mortality (40 % in PL8) decreased when the stage of the larvae increased (less than 20 % in PL13). At 25 °C, the PL13 mortality of both biodiesel and diesel WSF tested larvae was similar and significantly higher than that of the control ( p < 0.05). However, at 28, 30 and 34 °C the mortality of PL13 became low and was not significantly different with that of the control. For postlarvae (PL22), mortality in all treatments decreased as low as 20 % and was not significantly different among the treatments. The histopathological study shows that biodiesel WSF causes more histological damage to shrimp’s tissues than that of the diesel WSF group.
Language: English
Subfield: Health, Toxicology and Mutagenesis
Field: Environmental Science
Domain: Physical Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W2430874402