Techniques and systems for robotic aquaculture are described. In one embodiment, for example, a mariculture system may include an aquatic animal containment system operative to hold a population of aquatic animals, the aquatic animal containment system comprising an enclosed hull having a receptacle configured to receive a mechanical core, the mechanical core configured to store at least one sub-system to implement at least one function of mariculture system, and a position management system operative to maintain the enclosed hull at a depth below a surface of a body of water. Other embodiments are described.

A semi-submersible spar-type offshore fish farm for cultivating fish at open sea, comprising an elongated center column having one of a circular and polygonal cross-section. The elongated center column having a first end part and a second end part, a buoyancy sleeve and a harvesting sleeve that are coaxially arranged around the elongated center column, wherein the buoyancy sleeve is arrangeable at positions along the elongated center column between the first end part and the harvesting sleeve and the harvesting sleeve is arrangeable at positions along the elongated center column between the buoyancy sleeve and the second end part.

A semi-submersible spar-type offshore fish farm for cultivating fish at open sea, comprising an elongated center column having one of a circular and polygonal cross-section. The elongated center column having a first end part and a second end part, a buoyancy sleeve and a harvesting sleeve that are coaxially arranged around the elongated center column, wherein the buoyancy sleeve is arrangeable at positions along the elongated center column between the first end part and the harvesting sleeve and the harvesting sleeve is arrangeable at positions along the elongated center column between the buoyancy sleeve and the second end part.

A sensor positioning system, includes an actuation server for communicating with components of the sensor positioning system. The sensor positioning system additionally includes a first actuation system and a second actuation system, wherein each actuation system includes a pulley system for maneuvering an underwater sensor system. The sensor positioning system includes a dual point attachment bracket that connects through a first line to the first actuation system and connecting through a second line to the second actuation system. The underwater sensor system is affixed to the first pulley system, the second pulley system, and the dual attachment bracket through the first line and the second line.

A sensor positioning system, includes an actuation server for communicating with components of the sensor positioning system. The sensor positioning system additionally includes a first actuation system and a second actuation system, wherein each actuation system includes a pulley system for maneuvering an underwater sensor system. The sensor positioning system includes a dual point attachment bracket that connects through a first line to the first actuation system and connecting through a second line to the second actuation system. The underwater sensor system is affixed to the first pulley system, the second pulley system, and the dual attachment bracket through the first line and the second line.

Disclosed herein is an overwater photovoltaic panel installation structure having an environment-friendly marine-farm-type mooring anchor module that supports a photovoltaic panel on the water and includes a growth space where aquatic organisms are growable. The environment-friendly marine-farm-type mooring anchor module including a growth space where aquatic organisms are growable, includes an anchor module body defining an external appearance thereof, a frame section disposed inside the anchor module body and made of a more rigid material than the anchor module body, and a connection section exposed through an upper surface of the anchor module body and having both lower ends coupled to the frame section. The anchor module body has a plurality of growth space sections recessed from at least one surface thereof to provide a growth space for aquatic organisms.

Disclosed herein is an overwater photovoltaic panel installation structure having an environment-friendly marine-farm-type mooring anchor module that supports a photovoltaic panel on the water and includes a growth space where aquatic organisms are growable. The environment-friendly marine-farm-type mooring anchor module including a growth space where aquatic organisms are growable, includes an anchor module body defining an external appearance thereof, a frame section disposed inside the anchor module body and made of a more rigid material than the anchor module body, and a connection section exposed through an upper surface of the anchor module body and having both lower ends coupled to the frame section. The anchor module body has a plurality of growth space sections recessed from at least one surface thereof to provide a growth space for aquatic organisms.

A buoyancy system is for a fish pen. The fish pen has an enclosure for keeping fish confined in the fish pen, the enclosure being secured to an inner flexible buoyancy body floating on a water surface. The buoyancy system has an outer buoyancy body on the outside of the inner buoyancy body. The inner buoyancy body is attached to the outer buoyancy body with a mooring so that the outer buoyancy body and the inner buoyancy body move independently of each other relative to waves.

A buoyancy system is for a fish pen. The fish pen has an enclosure for keeping fish confined in the fish pen, the enclosure being secured to an inner flexible buoyancy body floating on a water surface. The buoyancy system has an outer buoyancy body on the outside of the inner buoyancy body. The inner buoyancy body is attached to the outer buoyancy body with a mooring so that the outer buoyancy body and the inner buoyancy body move independently of each other relative to waves.

Mooring systems and methods are provided. One system may include at least one object partially or fully submerged in a body of water. The system may also include a semi-rigid outer ring that is adrift or moored to at least one sea anchor or to the sea floor by at least one mooring line. At least one object may be connected or tethered by bridle lines to the semi-rigid outer ring to form an array.