Toximeters/Biomonitors

FishToximeter II

The bbe FishToximeter II observes the behavior of fish in a tank under the influence of a stream of “sample” water with the aid of a camera and continuous computer-assisted image analysis. This highly sensitive instrument is designed to detect toxic substances in e.g. rivers, reservoirs, water supply systems, water treatment plant intakes, and sewers.

It provides real-time detection of willful or accidental damage to water systems such as the drinking water supply and is capable of long-term monitoring in unmanned stations.

The FishToximeter II is based on the development of Extended Dynamic Daphnia Tests (EDDT), a proven detection method relied upon throughout the world. Continuous biological monitoring with the bbe FishToximeter II enables rapid detection of toxic substances in water and provides a real-time, online early warning system.

bbe Software 
The integrated software recognizes significant changes in the behavioral data of the fish obtained from the observations and recording of the fish’s movements. Toxic events are indicated as “alarms”. A statistical approach enables alarm recognition even under difficult realistic conditions such as “noise” or slow drift in the measured curve(s). Alarm sensitivity can be pre-defined as well as easily adjusted to specific requirements.

AlgaeToximeter II

The bbe AlgaeToximeter II continuously monitors water for the presence of toxic substances. Standardized algae are mixed with the sample water and the instrument detects the photosynthetic activity of the algae. Damage to the algae, caused e.g. by herbicides, causes a reduction in algae activity and activates an alarm above a pre-defined threshold.

DaphniaToximeter II