Fish Counter

    - IchtyoS System -

    The best automated migratory fish counter

    ... with laser optic system, user-friendly without post-treatment. The IchtyoS system can be installed either in a fishway or directly in the riverbed, at a counting fence. Made in Canada by Envirotel 3000





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    The IchtyoS system grew out of a Quebec technology developed jointly with the Société de la faune et des parcs du Québec (FAPAQ) and the Ministère de l'Industrie et du Commerce du Québec (MICQ). It is the fruit of five years of research and development.


    Based on laser technology, the IchtyoS system comprises three distinct components. The monitoring unit is made up of three sensing strips connected together by Plexiglas panels. Each strip is comprised of a series of laser transmitters (at the bottom) and a series of laser receivers (at the top) that are lined up with them. The whole unit thus forms a horizontal passageway, intersected by three vertical laser-beam curtains. As they cross the beams, fish activate the individual sensing strips. The data are then relayed by a connecting cable to the control unit, which interprets the information recorded by the monitoring unit.

    Certain models are also equipped with a memory card reader, allowing the data obtained to be transferred directly to a computer.

    The results can thus be readily exported to a commonly-used spreadsheet program such as MS-EXCEL.




    Key features of the counter

    The IchtyoS system:
    • counts fish;
    • classifies them in size categories suited to your requirements;
    • determines the direction in which they are moving;
    • automatically adapts to fluctuations in environmental conditions (turbidity, flow rate, luminosity, and passage of debris) to improve data precision;
    • keeps a precise, reliable record of numerous other parameters (date and time of passage, estimate of actual size).
    The IchtyoS system can be installed either in a fishway or directly in the riverbed, at a counting fence.


    Intervention stages and timeline

    There are several stages in the acquisition of an IchtyoS system.

    First, an analysis of the needs is done with the client, to allow for a clear definition of the biological problem and the characteristics of the installation site. At this stage, our team decides whether or not the IchtyoS system can meet the client's needs.

    If their decision is positive, the information gathered is used to pre-configure the system in our workshops to meet these requirements.

    In the next stage, we install the system with the client. We then carry out the necessary tests and final adjustments to ensure that it operates with optimal efficiency.

    These two steps are indispensable, since the system must be specifically adapted to the type of river involved, the installation site itself, and the target fish species.

    Once installed, the system is monitored on an ongoing basis to ensure that it is operating properly and adjust the settings to adapt it to a site change or a modification of certain environmental parameters.

    The system installation as such generally takes our team two to three days to complete. It should be noted, however, that the installation is preceded by the needs analysis and system configuration phase. Note also that following installation, every system is monitored.