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Impact of Oxygen Concentration on Zebra Mussel Mortality

Description: 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 p… more
Date: January 27, 2003
Creator: Molloy, Daniel P.
Item Type: Refine your search to only Report
open access

Impact of the Duration of Bacterial Exposure on Zebra Mussel Mortality

Description: These tests indicated that: (1) duration of exposure to bacterial strain CL0145A of Pseudomonas fluorescens is a key variable in obtaining zebra mussel mortality; (2) that given a choice of exposure periods up to 96 hr, the longer the exposure period, the higher the mean mortality that will be achieved; (3) that the first few hours that the mussels are exposed to the bacteria are the most important in achieving kill; (4) that the mortality achieved by exposure periods {>=}72 hr may be somewhat … more
Date: January 21, 2002
Creator: Molloy, Daniel P.
Item Type: Refine your search to only Report
open access

Impact of Water pH on Zebra Mussel Mortality

Description: The experiments conducted this past quarter have suggested that the bacterium Pseudomonas fluorescens strain CL0145A is effective at killing zebra mussels throughout the entire range of pH values tested (7.2 to 8.6). Highest mortality was achieved at pH values characteristic of preferred zebra mussel waterbodies, i.e., hard waters with a range of 7.8 to 8.6. In all water types tested, however, ranging from very soft to very hard, considerable mussel kill was achieved (83 to 99% mean mortality),… more
Date: October 15, 2002
Creator: Molloy, Daniel P.
Item Type: Refine your search to only Report
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