Journal of Marine Biology and Aquaculture
Changes in stress responses in juvenile rockfish Sebastes schlegelii exposed to dietary lead (Pb)and ascorbic acid
Kang, J.C., et al. Changes in Stress Responses in Juvenile Rockfish Sebastes Schlegelii Exposed to Dietary Lead (Pb) and Ascorbic Acid. (2017) J Marine Biol Aquacult 3(1): 1- 5.
© 2017 Kang, J.C. This is an Open access article distributed under the terms of Creative Commons Attribution 4.0 International License.
KeywordsSebastes schlegelii; Pb; Ascorbic acids; Stress indicators
Juvenile rock fish Sebastes schlegelii were exposed to dietary lead (Pb2 ) at concentrations of 0, 120, and 240 mg/L and ascorbic acid (AsA) at 100, 200, and 400 mg/L for 4 weeks. The stress indicators, plasma cortisol and heat shock protein 70 of S. schlegelii were also analyzed. Plasma cortisol and HSP 70 were considerably increased following exposure to dietary Pb, and high levels of ascorbic acid were highly effective in alleviating these elevations in cortisol and HSP 70. Lysozyme activity was significantly increased. The results of this study indicate that dietary Pb affects the stress indicators and high doses of AsA supplementation were effective in attenuating the changes brought about by dietary Pb exposure.