A lure for attracting aquatic life, specifically crabs, that utilizes interchangeable sound cartridges. The lure includes a fully submersible portable unit that houses all sound production components, including a speaker, and a power source.

The location of lost or entangled fishing gear, known as derelict gear, is detected. The motion or change of position of a buoy attached to fishing gear is determined via sensors mounted on the buoy and compared to typical buoy motion. If the buoy has moved beyond a threshold value from its original location, an alert is sent to the fisherman. The available sensor data will be used to determine the likelihood of loss or entanglement. This alert facilitates recovery of lost or entangled gear by identifying where immediate retrieval efforts should be focused. The number of traps lost to the ocean that otherwise would continue to trap or entangle marine life may be reduced.

The location of lost or entangled fishing gear, known as derelict gear, is detected. The motion or change of position of a buoy attached to fishing gear is determined via sensors mounted on the buoy and compared to typical buoy motion. If the buoy has moved beyond a threshold value from its original location, an alert is sent to the fisherman. The available sensor data will be used to determine the likelihood of loss or entanglement. This alert facilitates recovery of lost or entangled gear by identifying where immediate retrieval efforts should be focused. The number of traps lost to the ocean that otherwise would continue to trap or entangle marine life may be reduced.

Aquatic structures with adjustable buoyancy constructed in part with a vent valve for a buoyancy control device suitable for divers, where the vent valve may be opened by any combination of over-pressure, manual pressure relief or a powered means, where a force to a valve plug is applied by means of a spring that is constrained to prevent entirely lateral and angular movement but in which movement of the plug in the axis of the seat is unconstrained.

Aquatic structures with adjustable buoyancy constructed in part with a vent valve for a buoyancy control device suitable for divers, where the vent valve may be opened by any combination of over-pressure, manual pressure relief or a powered means, where a force to a valve plug is applied by means of a spring that is constrained to prevent entirely lateral and angular movement but in which movement of the plug in the axis of the seat is unconstrained.

A lure for attracting aquatic life, specifically crabs, that utilizes interchangeable sound cartridges. The lure includes a fully submersible portable unit that houses all sound production components, including a speaker, and a power source.

A lure for attracting aquatic life, specifically crabs, that utilizes interchangeable sound cartridges. The lure includes a fully submersible portable unit that houses all sound production components, including a speaker, and a power source.

The location of lost or entangled fishing gear, known as derelict gear, is detected. The motion or change of position of a buoy attached to fishing gear is determined via sensors mounted on the buoy and compared to typical buoy motion. If the buoy has moved beyond a threshold value from its original location, an alert is sent to the fisherman. The available sensor data will be used to determine the likelihood of loss or entanglement. This alert facilitates recovery of lost or entangled gear by identifying where immediate retrieval efforts should be focused. The number of traps lost to the ocean that otherwise would continue to trap or entangle marine life may be reduced.

Minnow traps suitable for trapping minnows may include a pair of spaced-apart, minnow-accessible side trap compartments. A minnow-accessible front trap compartment and a minnow-accessible rear trap compartment may be disposed between the side trap compartments. The front trap compartment and the rear trap compartment may be disposed in spaced-apart relationship to each other. At least one central bait compartment may be disposed between and communicate with the side trap compartments and between and communicate with the front trap compartment and the rear trap compartment. The at least one central bait compartment may be configured to contain a supply of bait.

Minnow traps suitable for trapping minnows may include a pair of spaced-apart, minnow-accessible side trap compartments. A minnow-accessible front trap compartment and a minnow-accessible rear trap compartment may be disposed between the side trap compartments. The front trap compartment and the rear trap compartment may be disposed in spaced-apart relationship to each other. At least one central bait compartment may be disposed between and communicate with the side trap compartments and between and communicate with the front trap compartment and the rear trap compartment. The at least one central bait compartment may be configured to contain a supply of bait.