The innovative systems and methods described herein use a high-resolution imaging microscope for capturing images of marine microorganisms and particles in situ in an aquatic environment. Using darkfield illumination, high-resolution images may be obtained, capturing features of the microorganism or particle as small as 10 m in remarkable clarity. Utilizing an open flow-through approach in sample imaging, the delicate structures of the plankton and particles may be imaged completely intact without damage and in their natural orientation. The images can be classified at high accuracy based on physiological and morphological information captured in the image including features as fine as 1 m. The disclosed classification method utilizes adaptable training sets of taxonomic categories and a novel method of discerning in-focus targets, providing a highly accurate identification system.

A fish rearing tank has an egg-shaped shell with a vertical long axis and gradually narrowing shape towards a tip portion. The egg-shaped shell holds a water volume for the contained fish in a major wider, lower portion, and encloses air in the minor, upper, tip portion. The shell forms a closed, rigid tank and has one or more water inlets, and one or more water outlets. A ring-shaped buoyancy collar is mounted on the egg-shaped shell. The shell has a fixed ballast in the lower end of said wider, lower portion of the egg-shaped shell.

A fish rearing tank has an egg-shaped shell with a vertical long axis and gradually narrowing shape towards a tip portion. The egg-shaped shell holds a water volume for the contained fish in a major wider, lower portion, and encloses air in the minor, upper, tip portion. The shell forms a closed, rigid tank and has one or more water inlets, and one or more water outlets. A ring-shaped buoyancy collar is mounted on the egg-shaped shell. The shell has a fixed ballast in the lower end of said wider, lower portion of the egg-shaped shell.

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.

A fish rearing tank has an egg-shaped shell with a vertical long axis and gradually narrowing shape towards a tip portion. The egg-shaped shell holds a water volume for the contained fish in a major wider, lower portion, and encloses air in the minor, upper, tip portion. The shell forms a closed, rigid tank and has one or more water inlets, and one or more water outlets. A ring-shaped buoyancy collar is mounted on the egg-shaped shell. The shell has a fixed ballast in the lower end of said wider, lower portion of the egg-shaped shell.

A fish rearing tank has an egg-shaped shell with a vertical long axis and gradually narrowing shape towards a tip portion. The egg-shaped shell holds a water volume for the contained fish in a major wider, lower portion, and encloses air in the minor, upper, tip portion. The shell forms a closed, rigid tank and has one or more water inlets, and one or more water outlets. A ring-shaped buoyancy collar is mounted on the egg-shaped shell. The shell has a fixed ballast in the lower end of said wider, lower portion of the egg-shaped shell.

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 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 non-invasive biometrical identification method and system (100) of animals, comprising: receiving characteristic data of an individual from at least one biometric sensor (102); processing the characteristic data to form biometric data identifying minutiae based skin markings of the individual and biometric data identifying physical characteristics of the individual; evaluating the biometric data identifying minutiae based skin markings of the individual and biometric data identifying physical characteristics of the individual to form biometric characteristic data of the individual; comparing the biometric characteristic findings of the individual to characteristic data of predetermined registered individuals; determining whether the individual is registered; giving the individual a unique identification if the individual is not registered; and registering the unique identification in a data storage (112).