The invention relates to a net, preferably a net for aquaculture, wherein the net comprises cords joined in a net mesh, wherein each cord comprises one or more yarns, the yarns having a tenacity of at least 0.6 N/tex and wherein the net has a mesh size of at least 8 mm, characterized in that the cords further comprise a polymeric resin, wherein the polymeric resin is a homopolymer or copolymer of ethylene and/or propylene, wherein the polymeric resin has a density as measured according to ISO1183 in the range from 860 to 970 kg/m3, a melting temperature in the range from 40 to 140° C. and a heat of fusion of at least 5 J/g. The invention further relates to a fishing net, a fish farming construction comprising said net, a fish farm, and a method for fish farming.

The invention relates to a net, preferably a net for aquaculture, wherein the net comprises cords joined in a net mesh, wherein each cord comprises one or more yarns, the yarns having a tenacity of at least 0.6 N/tex and wherein the net has a mesh size of at least 8 mm, characterized in that the cords further comprise a polymeric resin, wherein the polymeric resin is a homopolymer or copolymer of ethylene and/or propylene, wherein the polymeric resin has a density as measured according to ISO1183 in the range from 860 to 970 kg/m3, a melting temperature in the range from 40 to 140° C. and a heat of fusion of at least 5 J/g. The invention further relates to a fishing net, a fish farming construction comprising said net, a fish farm, and a method for fish farming.

A method is for assembly of a fish cage. The fish cage has a bottom unit having a buoyancy exceeding a weight of the bottom unit. The bottom unit has a body configured impermeable to water. The fish cage further has at least one wall element configured impermeable to water. The method includes providing the bottom unit on a surface of a water body. The method further includes connecting the at least one wall element to the body, thereby defining a spacing impermeably separated from the water body.

A method is for assembly of a fish cage. The fish cage has a bottom unit having a buoyancy exceeding a weight of the bottom unit. The bottom unit has a body configured impermeable to water. The fish cage further has at least one wall element configured impermeable to water. The method includes providing the bottom unit on a surface of a water body. The method further includes connecting the at least one wall element to the body, thereby defining a spacing impermeably separated from the water body.

A floatable structure has a cage with a surrounding wall and a bottom, the cage being arranged for fish farming. A surrounding skirt extends in a downward direction from the bottom, wherein at least a portion of the bottom from the skirt towards a center of the cage is tight. The portion of the bottom and the skirt forming a bottom section are arranged to be filled with a gas giving the floatable structure additional buoyancy.

A floatable structure has a cage with a surrounding wall and a bottom, the cage being arranged for fish farming. A surrounding skirt extends in a downward direction from the bottom, wherein at least a portion of the bottom from the skirt towards a center of the cage is tight. The portion of the bottom and the skirt forming a bottom section are arranged to be filled with a gas giving the floatable structure additional buoyancy.

A mobile farm for the growth of hydrobiological species, capable of offshore operation, which maintains a shoal-like behaviour of the fish confined therein, and being of robust design and construction. The use of related materials enables the structure to remain afloat, anchored, moored to a buoy or in movement, either self-propelled, towed or pushed. Formed by a central structure similar to a ship's hull, its hydrodynamic bow enables it to cut through the waves with minimum resistance, reinforced by a perimetral support; these combine with the use of heavyweight metallic meshes, thus constituting a floating means suited for offshore operation, with the ability to alter its draught and hydrodynamic presentation, consequently changing the containment volume of the species by means of a system for the individual or collective hoisting of the containment meshes.

A mobile farm for the growth of hydrobiological species, capable of offshore operation, which maintains a shoal-like behaviour of the fish confined therein, and being of robust design and construction. The use of related materials enables the structure to remain afloat, anchored, moored to a buoy or in movement, either self-propelled, towed or pushed. Formed by a central structure similar to a ship's hull, its hydrodynamic bow enables it to cut through the waves with minimum resistance, reinforced by a perimetral support; these combine with the use of heavyweight metallic meshes, thus constituting a floating means suited for offshore operation, with the ability to alter its draught and hydrodynamic presentation, consequently changing the containment volume of the species by means of a system for the individual or collective hoisting of the containment meshes.

Disclosed is a deep sea fish culture life support system. The deep sea fish culture life support system comprises a mother ship, a plurality of net cage groups and a master console, and the system further comprises an automatic feeding system, fixed positioning piles, flexible conveying pipes, rigid conveying pipes and feeding devices. By adopting the automatic feeding system, feed is timely supplied to deep sea fish according to the quantity, the fixed positioning piles are arranged at the two ends of the conveying pipes, the wind wave resistance and the water flow impact resistance are improved, the conveying pipes are laid underwater, the influence of large wind waves and severe sea conditions on feed conveying is avoided, and the safety of deep sea fish culture is effectively guaranteed.

A method of dynamically reconfiguring sensor system operating parameter by receiving, at an electronic device, data indicative of one or more underwater object parameters corresponding to one or more underwater objects within a marine enclosure. A set of intrinsic operating parameters for a sensor system at a position within the marine enclosure is determined based at least in part on the data indicative of one or more underwater object parameters. The sensor system is configured according to the determined set of intrinsic operating parameters by changing at least one intrinsic operating parameter of the sensor system in response to the data indicative of one or more underwater object parameters.