A vessel for control of aquatic plant species (100) in seas, rivers and lakes that is configured to extract from the surface of the water and hoist to a deck of the vessel (100) a plurality of plant remains of a given aquatic ecosystem by means of an elevator belt (101); and/or receive from a coastal installation a plurality of aquatic plant remains mixed with grey water from coastal human settlements; and that is characterized in that the remains of aquatic plant species extracted from the surface of the water and/or received from coastal human settlements are deposited in a cooking chamber (102) where they are subjected to controlled temperature conditions configured to modify, ferment and rot said remains preventing their reproduction.

A full-hydraulic chain reversing and remote control water-power harvesting equipment for lotus roots includes a main framework, a traveling module, an elevating module, and a working module. The main framework is of a two-crossbeam structure; the working module is of a skid-mounted structure; the working module is in transmission connection with the traveling module through the elevating module and is fixedly mounted on a top surface of the main framework; the traveling module includes caterpillar bands and a two-hydraulic-motor group; the two-hydraulic-motor group is in transmission connection with the caterpillar bands; the caterpillar bands and the two-hydraulic-motor group are fixedly mounted on a bottom cross beam of the main framework; and the working module includes a power driving module, a jet working module, a water suction pipeline module and a hydraulic power module.

A full-hydraulic chain reversing and remote control water-power harvesting equipment for lotus roots includes a main framework, a traveling module, an elevating module, and a working module. The main framework is of a two-crossbeam structure; the working module is of a skid-mounted structure; the working module is in transmission connection with the traveling module through the elevating module and is fixedly mounted on a top surface of the main framework; the traveling module includes caterpillar bands and a two-hydraulic-motor group; the two-hydraulic-motor group is in transmission connection with the caterpillar bands; the caterpillar bands and the two-hydraulic-motor group are fixedly mounted on a bottom cross beam of the main framework; and the working module includes a power driving module, a jet working module, a water suction pipeline module and a hydraulic power module.

Methods, systems, and computer-readable media that implement an autonomous or semi-autonomous growth platform used to control live cargo exposures to environmental parameters by changing depth in an offshore environment. For example, the growth platform can be lowered at night so that farmed seaweed can perform luxury uptake of nutrients and raised during the daytime so that the farmed seaweed can capture sunlight.

Methods, systems, and computer-readable media that implement an autonomous or semi-autonomous growth platform used to control live cargo exposures to environmental parameters by changing depth in an offshore environment. For example, the growth platform can be lowered at night so that farmed seaweed can perform luxury uptake of nutrients and raised during the daytime so that the farmed seaweed can capture sunlight.

Disclosed herein are a microalgae harvesting apparatus and method. The microalgae harvesting apparatus includes: a gantry crane including traveling towers configured to move along traveling tracks extending along lengthwise directions on both sides of an arrangement of microalgae incubators, a jib installed in the widthwise direction of the traveling towers, a hoist installed on the jib, and a crossbar configured to be selectively lowered and elevated by the hoist; a plurality of harvesters installed to form an N×M array in widthwise and lengthwise directions with respect to the crossbar, and provided with respective doors in the bottom surfaces thereof; a conveyor means configured to move along a lengthwise direction at a height between the microalgae cultivators and the harvesters; and a control panel configured to control the operations of the microalgae harvesting apparatus.

Disclosed herein are a microalgae harvesting apparatus and method. The microalgae harvesting apparatus includes: a gantry crane including traveling towers configured to move along traveling tracks extending along lengthwise directions on both sides of an arrangement of microalgae incubators, a jib installed in the widthwise direction of the traveling towers, a hoist installed on the jib, and a crossbar configured to be selectively lowered and elevated by the hoist; a plurality of harvesters installed to form an N×M array in widthwise and lengthwise directions with respect to the crossbar, and provided with respective doors in the bottom surfaces thereof; a conveyor means configured to move along a lengthwise direction at a height between the microalgae cultivators and the harvesters; and a control panel configured to control the operations of the microalgae harvesting apparatus.

Buoyant matter, and particularly biomass such as seaweed, is sequestered deep in a body of water, fey causing the matter to lose it buoyancy and sink and remain sunk for an extended period. In some examples, the matter is pumped to below a depth at which is loses its natural buoyancy as a result of the ambient water pressure resulting in it naturally sinking to the bottom.

Buoyant matter, and particularly biomass such as seaweed, is sequestered deep in a body of water, fey causing the matter to lose it buoyancy and sink and remain sunk for an extended period. In some examples, the matter is pumped to below a depth at which is loses its natural buoyancy as a result of the ambient water pressure resulting in it naturally sinking to the bottom.

The present invention provides a rake system for removing floating and submerged vegetation and debris from ponds. The rake system includes: a handle; a frame that includes a first cutting member, a second cutting member, one or more entrapment meshes, a floating member; and a line connected the proximal end of the handle. Methods for removing floating and submerged vegetation and debris from ponds are also disclosed.