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ToxSys_DaphII
Daphnia Toximeter

The Daphnia Toximeter continuously records and analyses the movement of daphnia in the instrument chamber where they are under the influence of “source” or “test” water. The instrument's toxicity computation is based upon the statistical deviation of the various measured Daphnia behavioral parameters from the (user-defined) norm. This unique instrument has no counterpart in the world
online toxicity monitors
toxicity measurement

online toxicity
The bbe Daphnia Toximeter assesses behaviour as below:
daphnia toxicity

Criteria used:

  • Speed measurements:
  • average speed
    speed distribution
  • Behaviour observation:
  • swimming altitude
    fractional dimension:
    measure for turns and circling movements, curviness
  • Growth observation:
  • size determination of daphnia
Application

bbe Toximeters provide a highly sensitive biological system for early detection of potentially dangerous unknown substances, in a wide variety of circumstances. These instruments are ideal for detecting water quality contamination in real-time to protect both plant and animal life. The Toximeters provide a means to detect (and alert users to) potentially dangerous circumstances. Based on the alert, the user may then take appropriate measures including further chemical analysis, water source diversion, process suspension or further treatment. Expensive chemical analysis can be targeted to key toxic events with potentially significant cost savings. Some examples of applications for our Toximeters include:
  • environmental monitoring, including ports, lakes, reservoirs and dams
  • source/ground water monitoring, supply monitoring and intake monitoring
  • surface water monitoring including rivers and lakes, measuring stations and early warning systems
  • pre-treatment assessment
  • post-treatment quality control
 
Improved features of the new version
  • High-resolution 15" touch-screen
  • Integrated sample treatment
  • Redesigned chamber eliminates air bubbles
  • Prepared algae feed syringe eliminates need for algae culture
  • Air-cooled peltier element
  • Easy-to-use (and fewer) tibe connections
  • User levels (beginner to expert)
  • Database storage of measurements
  • Reliable fast analysis
  • Enhanced resolution of daphnia motion
  • Storage cabinet
  • Splash-proof USB flexi-keyboard
  • Connections for LAN, USB, relays and 4-20mA

 

 

 



toxicity monitor

Winter Olympics 2002 used Daphnia analysers to protect water supply against terrorist attack