Abstract: This invention relates to a system for detecting and retrieving selected specimens being at least one of fish eggs, roe or fry, from a water containing hatching tray. The system including retrieving unit including a tube having a width comparable to the size of the specimens to be retrieved, the tube end being configured to be position in the water, and a pump device cable of pumping water and specimens from said tray. It also includes a robot unit moving the retrieving unit in a predetermined path related to a first reference system over said tray. The system also includes an imaging device being configured to detect and select specimens having chosen characteristics, and a control unit defining a second reference system defined by the position of a selected specimen relative to the position of the retrieving unit, the system being configured to move the tube end to the position of the selected specimen and pumping the specimen into the tube.

Abstract: This invention relates to a system for detecting and retrieving selected specimens being at least one of fish eggs, roe or fry, from a water containing hatching tray. The system including retrieving unit including a tube having a width comparable to the size of the specimens to be retrieved, the tube end being configured to be position in the water, and a pump device cable of pumping water and specimens from said tray. It also includes a robot unit moving the retrieving unit in a predetermined path related to a first reference system over said tray. The system also includes an imaging device being configured to detect and select specimens having chosen characteristics, and a control unit defining a second reference system defined by the position of a selected specimen relative to the position of the retrieving unit, the system being configured to move the tube end to the position of the selected specimen and pumping the specimen into the tube.