Open AccessIMPACT OF OXYGEN CONCENTRATION ON ZEBRA MUSSEL MORTALITY
Author(s) -
Daniel P. Molloy
Publication year - 2003
Language(s) - English
Resource type - Reports
DOI - 10.2172/812534
Subject(s) - mussel , zebra mussel , aeration , oxygen , environmental chemistry , pseudomonas fluorescens , environmental science , chemistry , biology , ecology , bacteria , genetics , organic chemistry
These tests have indicated that the bacterium Pseudomonas fluorescens strain CL0145A is effective at killing zebra mussels in environments having dissolved oxygen (DO) concentrations ranging from very low to very high. The results suggest that the highest mussel kill can be achieved in moderately to highly aerated environments, while kill may be 0-20% lower under conditions of very low oxygen. For example, under highly oxygenated conditions 97% kill was achieved while conditions having low DO produced 79% mussel kill. Service water measured in a local power plant indicated that DO concentrations were in the range of 8-9 ppm (e.g., highly aerated) within their pipes. Therefore, we will not expect to see decreases in the efficacy of CL0145A treatments due to oxygen levels within such power plant pipes