Acute Toxic Effects of Suspended Substances on Juvenile of Paralichthys Olivaceus
XU Wenyuan
WANG Yong
XIAO Guangxia
Abstract：The acute toxic effects of the substances suspension (SS,particle size between 1.102 μm and 14.501 μm) on juvenile of P.olivaceus were studied in Xing Sheng Farms in October 2014.The toxic effects and survival situation of SS on juvenile P.olivaceus were evaluated.The results showed that the mortality of P.olivaceus increased significantly with the SS concentration increasing,but the mortality of juvenile P.olivaceus did not reach the top value within 108h.There were significant differences in mortality between the treatment and control group (P＜0.01),when the SS concentration was greater than 2000 mg/L.The results calculated with bliss method showed that the 24、48、72 and 96h LC50 (95％ confidence limits) of SS on juvenile of P.olivaceus were 29 981mg/L(18 687～157 229mg/L)、26 218mg/L(17 154～73 764mg/L)、19 859mg/L(14 019～42 252mg/L)、12 637mg/L(10 010～18 998 mg/L).And the SC was 1 263.7 mg/L.When the SS concentration was greater than 2000mg/L,there were obviously dead-time effects and dead-does effects between the mortality of P.olivaceus and SS concentration.While compared with other species reported,P.olivaceus was still a stronger resistance species for SS pollution.
Keywords：suspended substances (SS)Paralichthys olivaceusjuvenile fishtoxic effects
Publication Date：2016-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：7( 80-86 )