We have over twenty years of experience tracking movements, behaviour and physiological parameters of free-swimming wild fish. Usually we monitor fish in their natural environment, but sometimes, wild fish are drawn into artificial structures or complexes where monitoring is necessary. Our fisheries biologists use passive or active capture techniques, SCUBA, unobtrusive underwater and overhead videography, and other unobtrusive remote monitoring and detection by radio, ultrasonic or PIT telemetry. We design experiments, collect animals, conduct surgical implantation or attachment of transmitters, install automated or online monitoring arrays and collect data manually using mobile receivers. Our experienced scientists have designed, conducted and published results from many telemetry projects around the globe with dozens of different species of animals, using the latest in high-tech surveillance electronics.