The present disclosure provides an autonomous biomonitoring system in lotic ecosystems, such as streams. A central design concept of autonomy is capturing aquatic organisms from their natural habitat and entraining them through an analyzer with an imaging unit. The system provides a collector for a sampling aqueous mixture that can flow through a screen to a sediment trap that is coupled to a pump that discharges the aqueous mixture into a staging tank. The staging tank is coupled to a flow-through analyzer and can continuously buffer and control the volume of aqueous mixture flow through the analyzer, and then the aqueous mixture is discharged. In at least one embodiment, the system allows continuous monitoring over a period of time. The system can transmit real time data to a remote location for data accumulation. The system can further provide remote movement of the collector for sampling at multiple remote locations.

The present disclosure provides an autonomous biomonitoring system in lotic ecosystems, such as streams. A central design concept of autonomy is capturing aquatic organisms from their natural habitat and entraining them through an analyzer with an imaging unit. The system provides a collector for a sampling aqueous mixture that can flow through a screen to a sediment trap that is coupled to a pump that discharges the aqueous mixture into a staging tank. The staging tank is coupled to a flow-through analyzer and can continuously buffer and control the volume of aqueous mixture flow through the analyzer, and then the aqueous mixture is discharged. In at least one embodiment, the system allows continuous monitoring over a period of time. The system can transmit real time data to a remote location for data accumulation. The system can further provide remote movement of the collector for sampling at multiple remote locations.

A Fishing Competition Management and Administration (FCMA) system includes communications and cull management capabilities. The FCMA system includes an angler-based system and an event organizer-based system. The angler-based system is based on a weigh scale and set of cull floats or markers for attachment to each caught and retained fish. The culling product includes the weigh scale and a set of six culling devices, each culling device has a different color. As a fish is caught and weighed, the Culling or Weight Scale will signal to a colored culling float in or outside of the live well. The culling scale determines and stores the weight associated with that particular-colored float and will properly record the weight next to the proper weight color on the screen.

A Fishing Competition Management and Administration (FCMA) system includes communications and cull management capabilities. The FCMA system includes an angler-based system and an event organizer-based system. The angler-based system is based on a weigh scale and set of cull floats or markers for attachment to each caught and retained fish. The culling product includes the weigh scale and a set of six culling devices, each culling device has a different color. As a fish is caught and weighed, the Culling or Weight Scale will signal to a colored culling float in or outside of the live well. The culling scale determines and stores the weight associated with that particular-colored float and will properly record the weight next to the proper weight color on the screen.

Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for monocular underwater camera biomass estimation. In some implementations, an exemplary method includes obtaining a plurality of images of fish captured by a monocular underwater camera; providing the plurality of images that were captured by the monocular underwater camera to a first model trained to detect one or more fish within the plurality of images; generating one or more values for each detected fish as a set of values; generating a biomass distribution of the fish based on the set of values; and determining an action based on the biomass distribution.

Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for monocular underwater camera biomass estimation. In some implementations, an exemplary method includes obtaining a plurality of images of fish captured by a monocular underwater camera; providing the plurality of images that were captured by the monocular underwater camera to a first model trained to detect one or more fish within the plurality of images; generating one or more values for each detected fish as a set of values; generating a biomass distribution of the fish based on the set of values; and determining an action based on the biomass distribution.

A method of moving farmed aquatic animals from a tank containing the animals, the tank having a tank outlet and a conveyance pipe, the conveyance pipe having a conveyance pipe inlet connected to the tank outlet and a conveyance pipe outlet at an outlet elevation higher than the tank outlet, the method comprising: (i) by means of a water inflow into the tank, maintaining a water level in the tank at a level above the outlet elevation to generate a flow of water from the tank through the conveyance pipe while positioning a moveable water-permeable screen inside the tank to crowd the animals towards the tank outlet, (ii) by means of the flow of water therethrough, moving animals through the conveyance pipe.

A method of moving farmed aquatic animals from a tank containing the animals, the tank having a tank outlet and a conveyance pipe, the conveyance pipe having a conveyance pipe inlet connected to the tank outlet and a conveyance pipe outlet at an outlet elevation higher than the tank outlet, the method comprising: (i) by means of a water inflow into the tank, maintaining a water level in the tank at a level above the outlet elevation to generate a flow of water from the tank through the conveyance pipe while positioning a moveable water-permeable screen inside the tank to crowd the animals towards the tank outlet, (ii) by means of the flow of water therethrough, moving animals through the conveyance pipe.

A method of surface splash scoring includes receiving, at an electronic device, a set of camera frames corresponding to images of a water surface. The electronic device processes the set of camera frames with a trained machine learning model to generate one or more quantifications associated with fish activity proximate the water surface. In some embodiments, a surface splash score is computed that represents an appetite level anticipated to be exhibited for a first time period. Subsequently, the electronic device generates an output indicative of the surface splash score.

Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for escape detection and mitigation for aquaculture. In some implementations, a method includes obtaining one or more images that depict one or more fish within an enclosure; generating, as a result of providing the one or more images to multiple detection models, a value that reflects a quantity of fish that are depicted in the images that are likely a member of each different type of fish; detecting an error condition relating to a possible opening of the enclosure based at least on the value; and in response to detecting the error condition relating to the possible opening of the enclosure, initiating one or more mitigation actions relating to the possible opening.