Abstract: A trap (10) for insects, vermin, and similar subjects is described. The trap includes a container (12) having a volume (26), an opening (28) into the volume, and a whisker assembly (14). The whisker assembly is located at the opening and extends into the volume, allowing subjects to enter the volume, but not exit the volume. In one embodiment, the whisker assembly includes a plurality of nonmetal flexible strands (30) arranged in a conical manner. The bases of the strands are located at the opening. The tips of the strands are located near one another. In another embodiment, the container has a top portion (20) and a bottom portion (22). The bottom portion includes the volume and the opening. A light assembly (18) is attached to the top portion, directly adjacent the opening in the bottom portion, and includes an LED that emits blue light onto the opening.

Abstract: A portable electrical mouse trap that has a housing in the shape of a cat to which a handle is attached. An interior cavity of the mouse trap contains a primary motion sensor near its entrance, a retractable primary gate, a reservoir of a fragrance that smells like fresh cheese, a secondary motion sensor near an entrance to the collection chamber, a retractable secondary gate and a vacuum source. The primary motion sensor and secondary motion sensor detect the presence of a mouse inside the interior cavity. The primary gate automatically opens when activated by the primary motion sensor and the secondary gate automatically opens when activated by the secondary motion sensor. A vacuum tube connects the vacuum source and collection chamber. The vacuum source sucks the mouse fully into the collection chamber and thereby suffocates it. A speaker informs a user when the collection chamber is full.

Abstract: The invention relates to a rodent trap comprising one or more rodent entry means (1)secured to catch compartment (2) for containing rodents once they have been caught. Each entry means (1) allows a rodent to enter the catch compartment (2) but prevents the rodent from exiting the catch compartment (2). Each entry means (1) is releasably secured to the catch compartment (2). Each entry means (1) comprises an enclosed corridor having a fist aperture (9) for the rodent to exit the entry means (1) into the catch compartment (2). An internal sealing means (3) is associated with the entry means (1). An external sealing means (12) is provided to seal the catch compartment (2) after use.

Abstract: A collapsible bait fish trap for catching live bait fish in a body of water. The fish trap has an elongated hollow fish enclosure formed from two connected generally conical shaped portions. Each generally conical shaped portion has a connectable inner portion and an outer end portion having an inward extending funnel member portion with a funnel aperture for permitting the passage of bait fish for funneling or channeling bait fish into the interior of the elongated hollow fish enclosure. The outer end portions of the conical shaped portions have a series of apertures for allowing water to pass into the interior of the elongated hollow fish enclosure. The generally conical shaped portions can be disconnected and nestled together for transportation purposes or for storage purposes.

Abstract: An improved animal trap apparatus for capturing prey without injuring same, comprised of an upper enclosure means of light weight and flexible netting or mesh material supported by poles or rods arranged in a self-supporting manner.

Abstract: A trap for capturing insects and other vermin, such as cockroaches, including a baited container having an opening at the top provided with a vertically arranged smooth-walled tube, which can be oiled to make it more difficult for the vermin to escape. A retaining apparatus can be provided allowing the entrance, but not the exit, of insects. The retaining apparatus can be a flexible ring which has a plurality of interleaving, flexible wires pointing conically into the interior of the container. Insects can push aside the wires in one direction to enter the container, but are prevented from escaping from the interleaved wires. Alternatively, the retaining apparatus can consist of two members movably biased together at one end such as to allow easy separation of the two members by a subject insect or vermin between the two members. Once separated, the members provide entrance to the container.

Abstract: A collection assembly for harvesting brine shrimp eggs from a body of water is disclosed in one presently preferred embodiment of the present invention as comprising a base member which may be positioned in a substantially horizontal orientation, means for extracting the brine shrimp eggs from the body of water, and means for positioning the extraction means such that the extraction means is at least three inches vertically from the base member. In one presently preferred embodiment, the collection assembly includes a back wall positioned at an angle to the base member. The back wall may be connected to and positioned substantially perpendicular to the base member so as to form an L-shape.

Abstract: Apparatus and methods for harvesting brine shrimp eggs from a body of water involving the use of an elongated member comprising buoyant material which enables the elongated member to float at or near the surface of the body of water and a water-permeable member positioned downwardly from the elongated member so as to enable the water-permeable member to be positioned below the surface of the body of water. The water-permeable member is configured so as to be substantially impermeable to brine shrimp eggs and substantially prevents brine shrimp eggs from escaping harvest as the apparatus is moved through the body of water to collect the brine shrimp eggs. In one presently preferred embodiment, the water-permeable member comprises a porous screen. One or more reinforcement members may also be included to protect the porous screen from tearing, puncture, or other damage.

Abstract: A multipurpose marine life container having a closed chamber defined by a pair of substantially identical clam shell-type housing halves opening toward each other and removably joined together along a parting line. An entrance opening is formed in each end wall of the container by a pair of half openings opening toward each other along the parting line. Each end wall supports a rotatable disk that includes three inwardly opening entry funnel areas as well as a closed area rotatable into and out of registry with the corresponding entrance opening. Hollow tubes with air tight closures are removably secured lengthwise through the container to provide buoyancy, weighting and reinforcement for the container. The opposite sides of the container include large openings which are selectively closed by cantilever supported doors swingable by gravity to the open positions and releasably latchable in the closed positions.

Abstract: A wire mesh lobster trap having a pair of concrete runners positioned on, and extending below, the side edges of the trap and a method for producing same are disclosed.

Abstract: An apparatus for harvesting and cleaning brine shrimp eggs on the open water is disclosed in one presently preferred embodiment of the present invention as comprising a buoyant support frame having a collection assembly operably disposed in relation thereto. A concentration member provides a means for collecting a naturally occurring mixture of brine shrimp eggs and debris floating at or near the surface of a body of water. The concentration member provides means for concentrating the mixture of brine shrimp eggs and debris into a concentrated egg/debris mud mixture having a general thickness of about 7.5 cm to 45 cm (3 inches to 18 inches). Engageably disposed in relation to the collection assembly, an extraction apparatus provides a means for transporting the concentrated egg/debris mud mixture introduced into the collection assembly to a filtering/cleaning apparatus.

Abstract: Marine harvesting and processing apparatus are provided for harvesting marine life from a body of water. The apparatus includes a continuous belt which is partially submerged in the water. A flow of water is created which forces organisms against the moving belt and the belt then lifts the organisms into the vessel. The belt produces a separation of larger organisms from smaller organisms. The organisms may then be passed through a filtering system comprised of a tube with a formed wire spirally wound thereabout. The spacing between the wound wire may be varied so that only organisms of a specific size may pass therethrough. As a result, only filtered organisms need be transported to shore thereby providing for a more efficient system and allowing the ship to transport more of the desired organism and less detritus.

Abstract: An apparatus and method for harvesting brine shrimp from an aquatic environment includes a separator having a containment vessel having a perforated sidewall and a drive assembly for agitating the containment vessel, preferably in a rotational motion about a horizontal axis. A first liquid spray assembly positioned outside of the containment vessel is disposed to direct a spray of liquid over a portion of the exterior of the containment vessel to dislodge shrimp which may be lodged in the perforations of the containment vessel. A second liquid spray assembly, positioned within the hollow interior of the containment vessel, is positioned to drive shrimp eggs contained in the vessel outward through the perforations of the vessel sidewall.

Abstract: An apparatus and associated method for collecting brine shrimp eggs (30) floating in a body of water which includes a hollow member (36) having apertures (38) extending therethrough, the apertures being of a size sufficiently large to allow the passage of brine shrimp eggs therethrough, but being sufficiently small that some other debris in the body of water will not pass through the apertures. The hollow member (36) is positioned so that a top portion of its outer surface is submerged in the water beneath a level wherein brine shrimp eggs float in the water. The apparatus also includes a pump (70), connected to the flexible piping (72), to withdraw fluid contained within the hollow member (36) and direct it to a collection area. The apparatus may be associated with a boat (20) or channel carved in the shore associated with a body of water.

Abstract: A floatable container apparatus for harvesting brine shrimp eggs is disclosed in one presently preferred embodiment of the present invention as including a buoyant container assembly having one or more ballast tanks to provide a means for raising and lowering the container in relation to the surface of the water. In addition, the container assembly comprises a collection reservoir having an internal periphery sufficient for collecting a mixture of water, brine shrimp eggs, and other debris. In operation, the container assembly may be partially submerged by introducing water into at least one ballast tank. Accordingly, a openable panel may be disposed in an open position to allow for the introduction of the floating mixture into the collection reservoir. Similarly, after a sufficient quantity of the mixture has been collected, the front panel of the container assembly may be disposed in a closed position which restricts additional fluid passage.

Abstract: A trap for animals having an apertured cover for positioning on a container containing a fluid. The cover includes a walkway on which an animal may walk. An attractive chemical scent is inaccessibly disposed beneath the walkway and adjacent an animal receiving aperture. A pivotal ball or cylinder is connected to the cover within the container. Once the animal falls through the aperture, it cannot escape and eventually drowns.

Abstract: A worm trap for use in an aquarium for trapping worms. The worm trap includes a tube assembly having a pair of openings at the ends of the assembly. A chamber is located within the assembly and is adapted to contain a food morsel. At least one end wall of the chamber communicates with the interior of the tube assembly to allow the aroma of the food morsel to enter the tube assembly so that a worm will be attracted to the aroma and be trapped in the tube assembly. The opening in the chamber is sufficiently small to prevent the food morsel from being carried out of the tube assembly by the worm.

Abstract: The present invention is a novel device for harvesting brine shrimp eggs from the surface of a body of water. In a preferred embodiment, the invention concentrates brine shrimp eggs in a surface layer of a body of water using a system of wedge-oriented booms. The present invention additionally comprises a vacuum system with a nozzle, which has an opening in close proximity to the surface layer of brine shrimp eggs. The vacuum system is capable of creating sufficient vacuum force to lift the surface layer of brine shrimp eggs and water from the body of water. The vacuum nozzle is maintained in close proximity to the surface layer of brine shrimp eggs by a floatation device and a pair of hydraulic rams connected to both the floatation device and the vacuum nozzle. The mixture of brine shrimp eggs and water extracted from the body of water by the vacuum motor is conveyed to a holding tank. From there it is transported to a series of porous storage containers for drainage.

Abstract: A collector of aquatic invertebrates for laboratory study comprising a substantially invisible collector having a removable wide mouth entry portion reducing to a narrow neck inlet passage whereby the invertebrates are secure from escape and are readily removable.

Abstract: Method for harvesting of brine shrimp eggs (cysts) from bodies of salt water. A floating collection boat is used with a very long floating boom, which is first deployed across the paths of wind blown individual colonies. Numerous colonies are quickly intercepted, and enclosed by upwind circling of the boom. With subsequent constriction of the enclosure, the cysts are consentrated into a thick slurry at the collection boat.

Abstract: A floatable boom for concentrating brine shrimp eggs which are floating at or near the surface of a body of water. The floatable boom comprises a rigid, floatable tube, a skirt affixed to the lower portion of the tube and extending downward into the body of water, and a remotely controlled drive device for propelling the floatable boom through the body of water. The invention discloses two of the novel, floatable booms extending outwardly from a harvesting boat in a divergent manner, such that a wedge-shaped concentrating angle is formed between the booms. The invention further comprises a means of support for maintaining the wedge-shaped concentrating angle formed by the booms.

Abstract: A brine shrimp egg harvesting device is shown. The harvesting device includes wedge-oriented booms designed to concentrate the brine shrimp eggs which float at the surface of a body of water. The brine shrimp egg harvesting device also has a collector for removing the concentrated slurry of brine shrimp eggs from the water and depositing it in a collection tank. The collector comprises of scoops which may be attached to drive chains which rotate the scoops into and out of the water. As the scoop enter the water, they trap a portion of the concentrated brine shrimp eggs and water and convey the captured slurry to a collection tank for deposit. The brine shrimp egg harvesting device has a pumping system for transporting the slurry of brine shrimp eggs and water from the collection tank to one or more porous storage containers which filter out the water in the slurry.

Abstract: A rodent trap characterized by a container with an inclined sidewall that has a screen covering same. Bait in the form of a band of peanut butter is placed on the inside of the container, approximately mid-height, and the bottom of the container is filled with an oil and antifreeze mixture. The rodent climbs the outside wire mesh and, in a vain attempt to reach the bait, falls into the liquid mixture and drowns.

Abstract: This invention relates to the deployment of branch lines used in longline fishing. A branch line deployment mechanism is provided which comprises deployment means for casting a baited branch line and drive means associated therewith. The deployment means comprises an arm connected at one end to the drive means, having at its other end means associated therewith to accommodate a baited line, such that the arm is capable of rotation about said connected end. The rotation is imparted to the arm intermittently by the drive means so as to provide a first or loading period in which the arm may be loaded with a baited line and a second or throwing period in which the arm casts the baited line.

Abstract: A trawling system for catching shrimp which includes a trawler, an outrigger carried by the trawler, an onboard suction pump, a trawl device that is adapted to be dragged along the bottom of a body of water behind the trawler, and a conduit connected from the onboard suction pump to a suction pocket of a net forming part of the trawl device for continuously delivering shrimp from the trawl device to the trawler. The trawl device includes two elongated trawl beams which are joined together at adjacent ends by a hinge connection to form an angle. Each trawl beam is composed of at least a pair of spaced-apart end strut plates, rods extending between the strut plates, a depressor hydrofoil beam for urging the entire trawl device toward the seabed as it is towed through the water, a net which has a suction pocket for collecting shrimp, skids for sliding on the seabed, and an open space adjacent the suction pocket of the net for allowing non-targeted species to escape.

Abstract: A floating fish raceway apparatus (10) for raising and harvesting fish in a body of water, the fish raceway apparatus having a frame (11), a flexible mesh cage (12) depending from the frame (11) and forming an enclosure for raising the fish, and a harvesting means (14) for drawing the flexible mesh cage (12) together in order to draw the fish to one end of the fish cage (10) for easy retrieval from the cage (10).

Abstract: A fish line holder and baiting apparatus stores a common line with fish hooks on a carousel type unit with several arms radiating from a common hub. Each of the arms may carry 150 hooks on a stainless steel rod. The common line is fed into automatic baiting apparatus which is a series of three chambers, a first horizontal hopper, then a vertical hopper and a transition conduit which moves the line via suitable fairleads into the vertical bait hopper. By the use of suitable articulated weights and various fairleads for centering the line, the line can be trolled out behind a moving fishing boat at a relatively high speed with good efficiency in baiting each hook.

Abstract: A centrifugal suction pump includes a vertically disposed support tube having upper and lower ends, a liquid check valve on the lower end of the support tube, and a hollow rotatable hub mounted on the upper end of the support tube. A number of horizontally expeller tubes are connected to the hub and extend radially therefrom. A check valve is associated with the hub for venting the hub to ambient atmosphere and a priming conduit is connected to the support tube for filing the latter and the expeller tubes with liquid. A stopper is associated with each expeller tube and has an operative position that seals the expeller tube. Rotation of the expeller tubes causes radial displacement of liquid therein which effects movement of the stoppers to an inoperative position at which the tubes are unsealed and liquid is pumped up the support tube.

Abstract: A lobster trap launch steadying device adapted for use with lobster traps that will reliably locate the position of attachment of the warp rope used for launching the trap into the sea so the trap will be steadied in its descent to the sea bottom so that the trap will be landed in an upright manner on the sea bottom. Upon a quick pull of the warp rope, the rope will be detached from the snap-clip device and the trap pull upwardly from one of its end portions so that it can be easily landed over the side of the boat. The snap-clip lever part is biased to a closed position by an elastic tension cord that is fixed to one of the mesh bars rearwardly up the full device. The device itself is assembled in clip fashion to the mesh top of the lobster trap.

Abstract: The apparatus is mounted on a deck of a boat and includes an elongated track with an inboard end and outbroad end disposed to at least the waterline for capturing a line having a float on one end and a subsea trap on the other end. A trolley is movably mounted on the track and a funnel-like guide structure is connected to the outboard end to direct the float and line, as the boat moves forwardly, to a capturing hook mounted to the trolley. Upon movement of the trolley inboard the float and line are drawn to permit a hydroslave pulley to pull the trap to the boat above the waterline thereby harvesting the catch therefrom and rebaiting same prior to returning the trap to the sea. A novel method of retrieving the subsea traps is also set forth herein.

Abstract: This invention pertains to the remote harvesting of crayfish by trapping them within a trap submerged in water and then, when harvesting is desired, by applying a counterweight for pivoting the trap so that the trapped crayfish are passed to a line for flushing the crayfish to a collection tank. This operation is accomplished remotely from the harvester and more than one harvester can be connected to the collection tank.

Abstract: An aquatic animal trap is provided, comprising a center enclosed cell having a bottom and mesh sides having at least one entrance passageway formed therein; and at least three radially spaced outer enclosed cells, each of the outer cells having a bottom and mesh sides having at least one entrance passageway formed therein and connected to the center cell via a radial passageway.

Abstract: A trap (10) for rodents and the like having a triangular chamber (12) with triangular inwardly projecting flaps (14) on each end which normally close the ends of the chamber (12) and converge and form a point inside the chamber. The flaps are resiliently articulated so that they deflect to permit entry of a rodent and automatically return to their normally closed position upon entry to prevent escape. A triangular-shaped tube (20) can be inserted into the chamber to temporarily deflect the flaps for disposal of a trapped rodent or for baiting the trap.

Abstract: An arrangement in vertical sewage system pipes for preventing rodents, such as rats, from entering dwellings, living accommodation, office accommodation, and similar building structures. The arrangement includes a frame which is L-shaped in cross-section with an outwardly extending flange sealingly inserted in a joint between two mutually adjacent pipe sections and an axially extending flange to which are attached a plurality of springing wires or rods so as to form a wire cone which tapers in the direction of sewage flow. The springing wires or rods terminate at the apex of the cone in anear touching relationship. The wires or rods are made of stainless steel with a wire gauge of from 0.7 to 2.5 mm or of fiber glass with a wire gauge of from 0.8 to 2.0 mm.

Abstract: A trap intended for capturing mice, rats, snakes or the like alive consists of a receptacle, preferably a household jar (6) and a cover (2,115). The cover (2,115) has an opening which is closed by a pivotally arranged grating (113). In order to manufacture a cover (2,115) which is readily adapted to various diameters and threads on the neck (7) of the receptacle (6) the connection means of the cover (2,115) are provided in the form of snap acting webs (4). So as to prevent a captured animal from escaping the cover comprises a stop latch (101) for holding the grating (113) into contact with the contact face on the cover.

Abstract: An apparatus for harvesting floating brine shrimp colonies from open water is disclosed. The apparatus includes a boat fitted with a driven roller arrangement adapted to engage and retrieve a floating boom positioned to enclose the subject shrimp colony. A conveyor belt fitted with a plurality of net-fitted frames is also mounted on the boat and is positioned to receive and filter the shrimp from the water as the roller arrangement tightens the boom enclosure about the shrimp colony and thereby directs that colony into proximity of the conveyor and its net-fitted frames.

Abstract: A system for the registration and combating of pests, such as mice and rats, for example, in which an electronic registration unit is connectable with one or more luring boxes selectively disposed in areas to be covered by the system. Each luring box is provided with an entrance aperture for the pest to enter the luring box, and detectors are associated with the luring boxes for producing a signal and sending it to the registration unit in response to the presence of a pest at the luring box. A suction unit is connectable with the luring box for applying a vacuum to the interior of the luring box to withdraw a pest from the luring box into the suction unit.

Abstract: A brailing system for commercial fishing boats that speeds the process of taking the fish from the pursing net that has been gathered next to the ship and transferring the fish into the storage chambers of the ship. Novel structure for reciprocally, pivotally and rotatably supporting the rear end of the brailing pole reduces the number of men required to dip the brailing pole into the pursing net.

Abstract: An offshore brine shrimp cyst harvesting device providing for the gravity flow of the cyst rich layer of brine into a collection vessel, followed by pumping therefrom and dewatering by a sluice and pressurized means before deposition into porous cyst storage bags. The collection vessel is characterized by an adjustable knife edge inlet dam or weir, allowing the ingestion of the top layer without mixing or roiling so that the cyst concentration is as high as possible. According to one aspect of the invention, the height of the inlet control edge may be automatically controlled with respect to the surface of the water, as by floats or other water depth sensing devices.

Abstract: An animal trap for catching animals in an unharmed manner, comprises a cage having a top, a bottom, a pair of side walls, a first end wall, and a second end wall. There is an opening in said cage, and a door means located in the first end wall. A platform is adapted to receive and retain bait used to attract animals and also adapted to receive at least a portion of the body of an animal to be trapped, said platform having a set position and an actuated position, with retaining means for retaining said platform in said set position. The retaining means releases the platform upon introduction of at least a portion of the weight of the animal, whereby the platform is moved from its set position to its actuated position upon being released. The door means has a set position and an actuated position, and is in the set position when the platform is in its set position.

Abstract: A primary vessel, such as a flotable float or the like, having a crustacean retrieving means attached to the forward end of the vessel, with the vessel being motor driven, the motor driving a plurality of dasic wheels to maintain the vessel above the water, and allowing it to move on the bottom of the pond. The retrieving means includes a first primary roller positioned substantially the distance of the width of the vessel and moving along the bottom of the pond for distrubing the crustaceans as the vessel moves forward. There is provided the primary conveyor wall directly to the rear of the primary roller wherein the crustaceans moving over the roller are deposited on the conveyor which transports the crustacean upward into a first receiving bin in the vessel. The primary conveyor includes a puralilty of spaced apart shelf members along its width so that the crustaceans will be lodged against the shelf member and will be deposited into the receiving bin as the conveyor belt circulates.

Abstract: The invention is a structure that is particularly configured to support simultaneously a multitude of fishing lines, and a live bait trap. Attached to each line are several fishing hooks, and all or a portion of the several fishing hooks are specifically designed to secure live fishing bait without doing injurious harm to the live bait, and also all or a portion of the fishing lines may be attached to a tow line equipped with a turning block with multiple hooks, and said turning block features bright, illuminating devices that reflect underwater light in alternating patterns as the turning block rotates freely in a body of water with sufficient current velocity to cause the rotation of the turning block. That particular structure is secured to a landing pier or a boat in a pivotal manner such that the supported multiple lines, fishing hooks and, turning blocks can be conveniently raised from the body of water or lowered into the same body of water.

Abstract: Fish lifting devices using the principle of the Archimedes' screw are known. Such devices have used a latticework screw entry portion to dewater the screw at the point of entry of the fish. The present invention provides a venting system which causes a fish-attracting current at the entry to the device and further substitutes more economical dewatering slots in the outer shell for the lattice-work screws.

Abstract: A drive circuit for setter rollers is automatically coordinated with a spool drive to insure a condition of tension in a longline at all times during the setting operation. The apparatus includes various rollers to achieve the method, and in addition, circuits for controlling the motor adapted to drive the speed rollers at different but correlated rates of speed. While the fluidic circuit is hydraulic, alternative electronic controls may be employed.

Abstract: A system for the mechanized handling of long lines uses a hook-collection tube scarfed at the intake and a long line storage winch with an auxiliary turn-around roller. The individual functional elements are mounted on the frame of the long line storage winch which serves as a line-hauling and storage member to provide functional cooperation of the individual functional elements.

Abstract: An apparatus for use with commercial long line fishing gear for receiving the long line as it is hauled from the sea, separating the gangions and hooks from the line and directing them to a storage tub or other storage means. The long line enters the apparatus through an entrance funnel and then passes through a guide funnel where the hooks are oriented substantially in a common plane. Thereafter, the line passes through a sorting gate assembly which orients the bends of the hooks in a common manner and directs them onto a rail assembly. The hooks are then guided by the rail assembly to a storage rail attached to a storage tube. As the hooks proceed along the rail assembly the ground line is drawn over a hydraulically powered sheave and directed into the storage tub.

Abstract: A mechanically driven brailer for fish from the bunt of a net includes a handle, a brailer hoop, and brail net attached to the hoop. The brailer hoop is hinged to the handle such that it maintains a coplanar relationship with the handle as both are driven downward into the fish. Release of a latch means allows the hoop to change positions relative to the handle so that the volume of the bunt swept by the hoop is maximized.

Abstract: A rodent trap, particularly for mice, comprises a substantially closed container which includes a fixed stationary ramp surface extending from a position adjacent the lid of the container downwardly from one side of the container toward an opposed side at which it ends at a position adjacent to but spaced from the side surface. An upper portion of the ramp surface is roughened to give good grip to the rodent while a lower portion of the ramp is smooth to prevent or inhibit the rodent from turning or reversing once it has reached the lower end of the ramp surface. Bait is applied to the lower end of the ramp surface and to the inner surface of the side wall adjacent the end of the ramp surface. The depth of the container is sufficient so that it can receive the ramp while underneath the ramp is a quantity of water the depth of which is sufficient to drown the mouse. An opening in the lid adjacent the upper end of the ramp is of sufficient small size to prevent the entry of unintended larger rodents.

Abstract: A motorized outrigger drive for an outrigger on a fishing boat, the outrigger being of the kind having a boom fixedly cantilevered laterally outboard from the side of the boat for releasably trailing a fishing line from a point laterally spaced outboard from the side of the boat and thereby to minimize risk of tangling while simultaneously trolling with several fishing lines. An outrigger line loops around an outboard line direction changing means fixed adjacent the free end of the boom and a motorized drive unit fixed with respect to the boom and boat. The motorized drive unit reversibly feeds the outrigger line. A traveler unit is carried on the outrigger line and has a portion supporting a fishing line release.

Abstract: A floatable boom for concentrating brine shrimp eggs which are floating at or near the surface of a body of water. The floatable boom comprises a rigid, floatable tube, a skirt affixed to the lower portion of the tube and extending downward into the body of water, and a remotely controlled drive device for propelling the floatable boom through the body of water. The invention discloses two of the novel, floatable booms extending outwardly from a harvesting boat in a divergent manner, such that a wedge-shaped concentrating angle is formed between the booms. The invention further comprises a means of support for maintaining the wedge-shaped concentrating angle formed by the booms.