US Government As Represented by the Secretary of the Army

Geo-centers, Inc.

The Government of the United States As Represented by the Secretary of the Department of the Army

Mark Wesley Widder

Tommy Ray Shedd

Mark W Brown

Robert Charles Bishoff

Eugene Hull

Murray S Swanson

William Henry Van Der Schalie

Jeffery Daniel Leach

William Hendrik Van Der Schalie

Jeffrey Daniel Leach

Jeffrey D Leach

William H Van Der Schalie

Robert C Bishoff

The invention is a method and kit for conducting a rapid toxicity test. Methods and kits according to the invention include an animal or plant species in diapause.

Hatching kit for toxicity test

A submersible biomonitoring system for monitoring water quality in situ includes a submersible chamber constructed of a di-electric material and sized to allow suitable signals from one or more aquatic organisms to be received by eliminating cross-talk between cells while allowing ambient conditions to be maintained inside the chamber. The aquatic organism exhibits ventilatory behavior and body movement sensitive to water quality which manifest as electrical signals picked up by electrodes and communicated to a pre-amplifier that conditions the signals for communication to a land-based amplifier and/or controller that is used to interpret the signals to determine when the water to which the organism is exposed has caused physiological stress to the organism.

Submersible portable in-situ automated water quality biomonitoring apparatus and method

Fish hatching method and apparatus

A portable automated biomonitoring system for monitoring water quality includes an exposure chamber for housing an aquatic organism and a water inlet for directing water to the exposure chamber. The aquatic organism has ventilatory behavior and body movement sensitive to water quality. Electrodes sense electrical signals produced by the organism during its ventilatory behavior and body movement, and a controller responsive to signals from the electrodes determines a plurality of ventilatory parameters based on the signals. The ventilatory parameters are compared with corresponding thresholds to determine when the water to which the organism is exposed has caused physiological stress to the organism. The water being evaluated may be recirculated through the system for further analysis.

Apparatus and method of portable automated biomonitoring of water quality

An automated biomonitoring system for monitoring water quality includes an exposure chamber for housing an aquatic organism having ventilatory behavior and body movement sensitive to water quality. Electrodes capture electrical signals produced by the organism during its ventilatory behavior and body movement, and a controller responsive to signals from the electrodes determines one or more ventilatory parameters based on the signals. The ventilatory parameters are compared with corresponding thresholds to determine when the water to which the organism is exposed has caused physiological stress to the organism. The signals captured by the electrodes may be corrected for variations in water conductivity so that the signals processed by the controlled are not influenced by conductivity.

Apparatus and method for automated biomonitoring of water quality

An automated biomonitoring system for monitoring water quality includes an exposure chamber for housing an aquatic organism having ventilatory behavior and body movement sensitive to water quality. Electrodes sense electrical signals produced by the organism during its ventilatory behavior and body movement, and a controller responsive to signals from the electrodes determines a plurality of ventilatory parameters based on the signals. The ventilatory parameters are compared with corresponding thresholds to determine when the water to which the organism is exposed has caused physiological stress to the organism.

Growing community of inventors

Chambersburg, PA, United States of America

Mark Wesley Widder