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Effects of Hypoxia and Sedimentary Naphthalene on the Activity of N-acetyl-β-Glucosaminidase in the Epidermis of the Brown Shrimp, Penaeus aztecus

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Abstract

The brown shrimp, Penaeus aztecus, is subject to dual stresses of environmental hypoxia and contamination of polycyclic aromatic hydrocarbons (PAHs) in the northern Gulf of Mexico. The effects of hypoxia and sedimentary naphthalene, administered alone and in combination, on epidermal activity of N-acetyl-β-glucosaminidase (NAG), a biomarker for molt-interfering effects in P. aztecus, were investigated. It was found that hypoxia and sedimentary naphthalene, when given simultaneously, significantly inhibited epidermal NAG activity, suggesting that these two environmental stressors together can have adverse effects on molting of the brown shrimp. The results of this study also show that sedimentary naphthalene potentiates hypoxia effects on epidermal NAG activity.

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Acknowledgments

This study was sponsored by the US National Oceanic and Atmospheric Administration (NOAA) and the US Geological Survey (USGS) through the Long-term Estuary Assessment Group (LEAG).

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  1. Department of Biological Sciences, Nicholls State University, Thibodaux, LA, 70310, USA

    Enmin Zou

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  1. Enmin Zou
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Correspondence to Enmin Zou.

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Zou, E. Effects of Hypoxia and Sedimentary Naphthalene on the Activity of N-acetyl-β-Glucosaminidase in the Epidermis of the Brown Shrimp, Penaeus aztecus . Bull Environ Contam Toxicol 82, 579–582 (2009). https://doi.org/10.1007/s00128-008-9619-y

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  • DOI: https://doi.org/10.1007/s00128-008-9619-y

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