A suction sampler system for in situ collection of deep-sea floor organisms includes a pressure-retaining cylinder, a pressure compensation device, a cone component, semiconductor refrigeration components, a circuit cylinder and a collection cylinder. Two ends of the pressure-retaining cylinder are respectively equipped with a first and second seal mechanisms, and the cone component is arranged in the pressure-retaining cylinder. The pressure compensation device is connected to the pressure-retaining cylinder through a high-pressure pipe. The semiconductor refrigeration components are arranged outside the pressure-retaining cylinder. The circuit cylinder is equipped with a power supply and a controller, and the semiconductor refrigeration components are connected to the controller. A pressure sensor and a temperature sensor are arranged inside the pressure-retaining cylinder, and respectively connected to the controller. The collection cylinder communicates with the valve hole of the second seal mechanism through a pipeline.

Methods of situationally controlling marine devices connected via a one boat network on a watercraft are presented. The marine devices are selected from fishfinders or other OBN devices, trolling motors, heading sensors, main propulsion engine, i-Pilot Link, shallow water anchors, AIS/MARPA, smart chargers or power monitors, downriggers, trim tabs, drift paddles, lighting, sonar and imaging transducers, chart plotters, foot pedals, handheld remote controls, and mobile marine apps. The method includes the steps of identifying at least one situational condition of at least one first marine device, identifying at least one second marine device, and triggering a situational control action for the at least one second marine device when the at least one situational condition for the at least one first marine device is met. The methods include situationally controlling a speed of a trolling motor and anchoring of the watercraft, as well as providing advanced power management thereon.

Methods of situationally controlling marine devices connected via a one boat network on a watercraft are presented. The marine devices are selected from fishfinders or other OBN devices, trolling motors, heading sensors, main propulsion engine, i-Pilot Link, shallow water anchors, AIS/MARPA, smart chargers or power monitors, downriggers, trim tabs, drift paddles, lighting, sonar and imaging transducers, chart plotters, foot pedals, handheld remote controls, and mobile marine apps. The method includes the steps of identifying at least one situational condition of at least one first marine device, identifying at least one second marine device, and triggering a situational control action for the at least one second marine device when the at least one situational condition for the at least one first marine device is met. The methods include situationally controlling a speed of a trolling motor and anchoring of the watercraft, as well as providing advanced power management thereon.

Embodiments of the present invention are related to a centrifugal pump system including a cylinder with a cylinder bottom having a lower chamber, a cylinder body including a plurality of longitudinal channels, and a cylinder top with a plurality of spouts. The centrifugal pump system also has an annulus including a circular channel with an outlet. The centrifugal pump system is structured to transport fluid from below the cylinder bottom, through the cylinder lower chamber, through the plurality of longitudinal channels and the cylinder spouts before exiting the annulus outlet.

Embodiments of the present invention are related to a centrifugal pump system including a cylinder with a cylinder bottom having a lower chamber, a cylinder body including a plurality of longitudinal channels, and a cylinder top with a plurality of spouts. The centrifugal pump system also has an annulus including a circular channel with an outlet. The centrifugal pump system is structured to transport fluid from below the cylinder bottom, through the cylinder lower chamber, through the plurality of longitudinal channels and the cylinder spouts before exiting the annulus outlet.

A rope releasing apparatus includes an actuator, a wireless receiver for receiving a wireless signal to control the actuator, and a rope securing mechanism mechanically coupled to the actuator. The rope securing mechanism secures a rope. The rope is attached to a fishing net. In response to receiving the wireless signal, the wireless receiver activates the actuator to cause the rope securing mechanism to release the rope.

The invention relates to the use of sonar acoustic pulses to provide information about the status and composition of aquaculture farming tanks or ponds. In particular, the invention is directed to processes and systems comprising: a acoustic pulse transducer configured to transmit a acoustic pulse into an aquaculture farming tank or pond, a network of underwater sonar signal receivers; a computer connected to the network of underwater sonar signal receivers, said computer having a processor and memory, said memory having computer programming instructions saved thereon and executable on the processor, said computer programming instructions configured for receiving and comparing a signal difference between the acoustic pulse and the scattered return signal and for using the signal difference to output a signal difference data point related to a calculated shrimp biomass and distribution in the aquaculture farming tank or pond; a computer display connected to the computer and configured to display the signal difference data point related the calculated shrimp biomass and distribution.

The invention relates to the use of sonar acoustic pulses to provide information about the status and composition of aquaculture farming tanks or ponds. In particular, the invention is directed to processes and systems comprising: a acoustic pulse transducer configured to transmit a acoustic pulse into an aquaculture farming tank or pond, a network of underwater sonar signal receivers; a computer connected to the network of underwater sonar signal receivers, said computer having a processor and memory, said memory having computer programming instructions saved thereon and executable on the processor, said computer programming instructions configured for receiving and comparing a signal difference between the acoustic pulse and the scattered return signal and for using the signal difference to output a signal difference data point related to a calculated shrimp biomass and distribution in the aquaculture farming tank or pond; a computer display connected to the computer and configured to display the signal difference data point related the calculated shrimp biomass and distribution.

Flight based marine object search, detection and identification systems and related techniques include an unmanned aerial system (UAS) having a flight platform configured to execute a search path to search for an underwater object, an imaging system comprising image capture components configured to generate a stream of images corresponding to a field of view of the UAS, and a logic device associated with the UAS and configured to analyze the stream of images using a marine video analysis (MVA) system to detect a region of interest comprising an underwater object, identify an underwater object in the detected region of interest, and notify a mobile structure of the identified object.

Disclosed is a method for guiding aquatic organisms. The method includes disposing a plurality of electrode units at a distance from one another in water; and applying an electrical pulse to at least one electrode unit of the plurality of electrode units to generate an electric field and/or a magnetic field around the at least one electrode unit to guide the aquatic organisms by stimulating the aquatic organisms with the generated electric and/or magnetic fields.