Abstract: A controlled eutrophication system and process are disclosed. The system includes the combination of a partitioned aquaculture system in conjunction with an anaerobic digester. Wastewater containing pollutants, such as nitrogen and phosphorus, are fed to the partitioned aquaculture system. Algae within the system converts the pollutants into algal biomass. Fish populations, in turn, control the algal populations. The fish populations may then be periodically harvested for human or animal consumption. A polishing chamber is contained in the system in which aquatic organisms remove substantial amounts of the algae from batch fed additions of water. The water is then discharged to an external water source containing virtually no pollutants. In one embodiment, the biomass excreted by the aquatic organisms in the system are collected and fed to a digester.

Abstract: The present invention generally relates to a process and system for raising aquatic organisms, such as shellfish, shrimp and fish. More particularly, the present invention is directed to an automated partitioned aquaculture system for raising catfish. The aquiculture system comprises an algal growth channel; at least one raceway for producing and maintaining the aquatic organisms; and a first and second flow control device. The first flow control device is configured to control the flowrate of water through the algal growth channel substantially independently of the flowrate of water in the raceway. By changing the water flowrate, in response to factors in the aquaculture environment, production of aquatic organisms can be substantially increased.

Abstract: A high voltage high power DC source includes a magnetic flux pole structure responsive to a high frequency, relatively low voltage source inductively coupled to the pole. Multiple AC to DC converters inductively coupled to the pole are connected in series, stacked relationship with each other, to derive the high voltage, high power DC output. Each stage includes a pair of oppositely wound planar coils on opposite sides of a printed circuit board. The printed circuits of the different stages are displaced from each other and a coil driven by the high frequency source.

Abstract: A mechanical harvester for marine bivalve mollusks and the like. A harvester head is provided for movement along a bottom to be harvested, which head includes driven tined elements for dislodging mollusks from the bottom and for removing dislodged mollusks and conveying same away from the bottom. The harvester head is supported by a cable system, preferably from a marine vessel, that is adapted to impart a substantially constant lifting force on the harvester head over a predetermined range of water depth, such that a predetermined pressure only is applied by the head against the bottom during harvesting, whereby damage to the bottom that would hinder replenishment of marine life is avoided. The harvester head is also capable of pitch and roll movement to follow the contour of the bottom during harvesting.