John Wiley & Sons, Ltd.

Simultaneous exposure to chronic hypoxia and dissolved PAHs results in reduced egg production and larval survival in the Sheepshead minnow (Cyprinodon variegatus)

0
Estuarine fish in the northern Gulf of Mexico are annually exposed to hypoxic conditions. In addition to hypoxia, fish located throughout the northern Gulf of Mexico were potentially exposed to oil released during the Deepwater Horizon incident. Therefore; the interaction between oil exposure and hypoxia is worthy of investigation. To examine this interaction, we exposed adult and larval Sheepshead minnow (Cyprinodon variegatus, SHM) to crude or dispersed oil under both normoxic and hypoxic conditions. We examined total egg production, egg hatching success, and larval survival post hatch. Our results indicate that co‐exposure to crude or dispersed oil and hypoxia resulted in a significant decrease in egg production, as well as a significant decrease in both egg hatch success and larval survival post hatch. The significant impact on reproductive success following crude or dispersed oil and hypoxia exposure indicates the importance of including environmental parameters such as hypoxia when evaluating the impact of an oil spill. This article is protected by copyright. All rights reserved

Customer comments

No comments were found for Simultaneous exposure to chronic hypoxia and dissolved PAHs results in reduced egg production and larval survival in the Sheepshead minnow (Cyprinodon variegatus). Be the first to comment!