A new acoustic tag and process are disclosed for identifying and tracking underwater hosts in up to three dimensions. The acoustic tag has an operation lifetime up to a year or longer at a pulse rate interval of about 15 seconds. The acoustic tag has a signal detection range up to at least about 500 meters that enhances detection probability.

A system for indoor shrimp aquaculture is described that comprises a plurality of stacked raceways, each raceway being a long, flat rectangular tank comprising at least two sections arranged in series and scaled to accommodate shrimp of increasing size. The sections are separated by a moveable section divider whereby shrimp may be transferred between sections once they reach a predetermined size by opening the moveable section divider and allowing the shrimp and water to flow through into the next section. Each raceway includes a waste collection assembly situated at the downstream end of each section for collecting waste for removal. Methods of using the system to grow shrimp are also provided. The raceways are further adapted to facilitate operation of the production module at large scales, in this way; the system is scaleable to achieve high-throughput production of shrimp.

A system for indoor shrimp aquaculture is described that comprises a plurality of stacked raceways, each raceway being a long, flat rectangular tank comprising at least two sections arranged in series and scaled to accommodate shrimp of increasing size. The sections are separated by a moveable section divider whereby shrimp may be transferred between sections once they reach a predetermined size by opening the moveable section divider and allowing the shrimp and water to flow through into the next section. Each raceway includes a waste collection assembly situated at the downstream end of each section for collecting waste for removal. Methods of using the system to grow shrimp are also provided. The raceways are further adapted to facilitate operation of the production module at large scales, in this way; the system is scaleable to achieve high-throughput production of shrimp.

The invention relates to a catcher basket assembly including a main body, at least one confining container for containing an animal, and at least one directing part in the main body, for assisting to direct the animal from the main body to the confining container. In use, the directing part directs an animal towards one or more confining container and the confining container enables the animal to be visually inspected and sorted without the need to make direct contact with the animal. The invention also relates to a catcher basket assembly for confining and sorting a crab. The invention also relates to a method of use of a catcher basket assembly.

A multi-sensor system for monitoring water parameters, the system including a first metallic layer; a dielectric layer formed on the first metallic layer; a second metallic layer formed on the dielectric layer; a power source electrically connected to the second metallic layer; a computing device electrically connected to the second metallic layer; and a stretchable outer layer that encapsulates the first metallic layer, the dielectric layer, the second metallic layer, the power source and the computing device. The multi-sensor system is stretchable and flexible.

The present disclosure relates to imaging for determination of crustacean physical attributes. An image of a shell of a live crustacean is captured and processed to determine a physical attribute of the live crustacean. In an embodiment a characteristic of a pattern indicative of moult stage of the live crustacean is detected, from the captured image. Multiple images may be used in some embodiments, including images of different types such as visible spectrum images, infrared spectrum images, and/or ultraviolet spectrum images.

The present disclosure relates to imaging for determination of crustacean physical attributes. An image of a shell of a live crustacean is captured and processed to determine a physical attribute of the live crustacean. In an embodiment a characteristic of a pattern indicative of moult stage of the live crustacean is detected, from the captured image. Multiple images may be used in some embodiments, including images of different types such as visible spectrum images, infrared spectrum images, and/or ultraviolet spectrum images.

An apparatus and system is disclosed for facilitating an angler in placing fish into a weigh-in bag from a boat's live well. The apparatus includes a post for inserting into a seat post receiver of a boat, and has a hook on its top for receiving handles of a weigh-in bag. The apparatus also preferably includes a fill tube connected to the pumping system of a boat's live well plumbing system. The apparatus holds and fills the bag in a position and location convenient to allow an angler to use both hands to retrieve a fish from a live well and then insert the fish into the bag.

A fish monitoring system deployed in a particular area to obtain fish images is described. Neural networks and machine-learning techniques may be implemented to periodically train fish monitoring systems and generate monitoring modes to capture high quality images of fish based on the conditions in the determined area. The camera systems may be configured according to the settings, e.g., positions, viewing angles, specified by the monitoring modes when conditions matching the monitoring modes are detected. Each monitoring mode may be associated with one or more fish activities, such as sleeping, eating, swimming alone, and one or more parameters, such as time, location, and fish type.

An apparatus for producing ventral images of aquatic organisms, such as amphibians, for example, of newts the apparatus comprising a hollow conduct and a watertight container. The hollow conduct has a first opening and a second opening being opposed from each other. The hollow conduct and the watertight container are separated by a wall which transmits the wavelengths comprised between 390 nm and 1.4 m. The apparatus is opaque to the wavelengths comprised between 390 nm and 1.4 m. The watertight container comprises an underwater video camera oriented towards the wall. The apparatus is remarkable in that the watertight container is positioned below the hollow conduct, the watertight container being filled with clean water. Additionally, a method for detecting, identifying and/or individualizing aquatic animals.