Seasonal and Spatial Effects of Wastewater Effluent on Growth,Survival, and Accumulation of Microbial Contaminants by Oysters in Mobile Bay,Alabama |
| |
| Authors: | Peter J Biancani Ruth H Carmichael Joshua H Daskin III" target="_blank">William BurkhardtIII Kevin R Calci |
| |
| Institution: | (1) Dauphin Island Sea Lab, 101 Bienville Boulevard, Dauphin Island, AL 36528, USA;(2) University of South Alabama, Mobile, AL 26688, USA;(3) MB 0193 Brandeis University, Waltham, MA 02454, USA;(4) US Food and Drug Administration, Gulf Coast Seafood Laboratory, 1 Iberville Road, Dauphin Island, AL 36528, USA; |
| |
| Abstract: | We measured seasonal effects of wastewater treatment plant (WTP) effluent on growth, survival, and accumulation of microbes
in oysters near a major WTP in Mobile Bay, AL. Despite higher nutrients near the WTP, seasonal conditions rather than distance
affected chlorophyll a concentration and oyster growth. In summer and fall, when oyster growth was higher, δ15N‰ in oysters near the WTP changed through time to reflect δ15N‰ in effluent (approx. −4‰). Microbial indicators (male-specific coliphage, fecal coliforms) were highest in oysters near
the WTP in all seasons and correlated with δ15N‰ in fall and summer. Increased riverine discharge and slower acquisition of δ15N‰ likely confounded correlations in winter/spring. Although we did not detect gross ecological effects of wastewater exposure
for oysters, data indicated wastewater-derived particles entered the local food web and accumulated in oysters. These data
highlight the importance of using multiple indicators of wastewater exposure and considering both seasonal and spatial effects
when defining wastewater influence on a system or species. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
