Ecotoxicology and environmental safety

Naphthalene may cause reproductive problems by affecting egg development in estuarine crabs

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Abstract

Significant reductions in vitellogenin (VTG) and vitellin (VTN) contents were observed in the hepatopancreas, haemolymph, and ovary of the estuarine crab Scylla serrata exposed to naphthalene.

  • Naphthalene exposure is associated with decreased levels of vitellogenin in the haemolymph and vitellin in the ovary of crabs.
  • The gonadosomatic index (GSI) showed a decreasing trend in crabs exposed to naphthalene, indicating potential reproductive disturbances.
  • Alterations in vitellogenic proteins and GSI may serve as biomarkers for assessing reproductive impacts of environmental pollutants.

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