Sex-Specific Differences in the Toxic Effects of Heavy Fuel Oil on Sea Urchin ( Strongylocentrotus intermedius )

Xuanbo Wang, Hang Ren, Xishan Li, Huishu Chen, Zhonglei Ju and Deqi Xiong
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Xuanbo Wang: College of Environmental Science and Engineering, Dalian Maritime University, Dalian 116026, China
Hang Ren: College of Environmental Science and Engineering, Dalian Maritime University, Dalian 116026, China
Xishan Li: College of Environmental Science and Engineering, Dalian Maritime University, Dalian 116026, China
Huishu Chen: College of Environmental Science and Engineering, Dalian Maritime University, Dalian 116026, China
Zhonglei Ju: College of Environmental Science and Engineering, Dalian Maritime University, Dalian 116026, China
Deqi Xiong: College of Environmental Science and Engineering, Dalian Maritime University, Dalian 116026, China

IJERPH, 2021, vol. 18, issue 2, 1-9

Abstract: The purpose of this study was to explore and compare the sex-specific differences in the toxic effects of water-accommodated fractions of 380# heavy fuel oil (HFO WAF) on the sea urchin Strongylocentrotus intermedius . Sea urchins were acutely exposed to HFO WAF at different nominal concentrations (0%, 10% and 20%) for seven days. The results showed that females had a higher polycyclic aromatic hydrocarbons (PAHs) bioaccumulation in gonad tissues and that both the total antioxidant capacity (TAC) and lipid peroxidation (LPO) levels in the gonad tissues of females were much higher than those of males. The PAHs bioaccumulation in gametes indicated that parents’ exposure could lead to a transfer of PAHs to their offspring, and eggs had higher TAC and LPO than sperms. After maternal and paternal exposure to HFO WAF, the frequency of morphological abnormalities of the offspring was increased when compared to the control. Overall, these results indicated that maternal exposure to HFO WAF could cause more significantly toxic effects on sea urchins than paternal exposure could, which could lead to more significantly negative effects on their offspring.

Keywords: HFO WAFs; acute toxicity; sea urchin; offspring development (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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