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North Carolina Department of Environment Quality

NC Department of Environment and Natural Resources
Marine Fisheries - NC Bycatch Reduction Device

Marine Fisheries

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H. Jones-Davis:

1. Description. The Jones-Davis BRD is similar to the expanded mesh and the extended funnel BRDs except that the fish escape openings are windows cut around the funnel rather than large-mesh sections. In addition, a webbing cone fish deflector is installed behind the funnel. Minimum construction and installation requirements stated below.

Webbing extension. The webbing extension must be constructed from a single piece of 1 5/8 inch (3.5 cm) stretch mesh # 30 nylon 42 meshes by 120 meshes. A tube is formed from the extension webbing by sewing the 42-mesh side together.

28 inch (71.1cm) cable hoop. A single hoop must be constructed of 1/2 inch (1.3 cm) steel cable 88 inch (223.5 cm) in length. The cable must be joined at its ends by a 3 inch (7.6 cm) piece of 1/2 inch (1.3 cm) aluminum pipe and pressed with a 3/8 inch (0.95 cm) die to form a hoop. The inside diameter of this hoop must be between 27 and 29 inches (68.6 and 73.7 cm). The hoop must be attached to the extension webbing 17 1/2 meshes behind the leading edge. The extension webbing must be quartered and attached in four places around the hoop, and every other mesh must be attached all the way around the hoop using # 24 twine or larger. The hoop must be laced with 3/8 inch (0.95 cm) polypropylene or polyethylene rope for chaffing.

24 inch (61.0 cm) hoop. A single hoop must be constructed of either # 60 twine 80 inches (203.2 cm) in length or 3/8 inch (0.95 cm) steel cable 75 1/2 inches (191.8 cm) in length. If twine is used, the twine must be laced in and out of the extension webbing 39 meshes behind the leading edge, and the ends must be tied together. If cable is used, the cable must be joined at its ends by a 3 inch (7.6 cm) piece of 3/8 inch (0.95 cm) aluminum pipe and pressed together with a 1/4 inch (0.64 cm) die to form a hoop. The inside diameter of this hoop must be between 23 and 25 inches (58.4 and 63.4 cm). The hoop must be attached to the extension webbing 39 meshes behind the leading edge. The extension webbing must be quartered and attached in four places around the hoop, and every other mesh must be attached all the way around the hoop using # 24 twine or larger. The hoop must be laced with 3/8 inch (0.95 cm) polypropylene or polyethylene rope for chaffing.

Funnel. The funnel must be constructed from four sections of 1 1/2 inch (3.8 cm) heat-set and depth-stretched polypropylene or polyethylene webbing. The two side sections must be rectangular in shape, 29 1/2 meshes on the leading edge by 23 meshes deep. The top and bottom sections are 29 1/2 meshes on the leading edge by 23 meshes deep and tapered 1 point 2 bars on both sides down to 8 meshes across the back. The four sections must be sewn together down the 23 mesh edge to form the funnel.

Attachment of the funnel in the webbing extension. The funnel must be installed two meshes behind the leading edge of the extension starting at the center seam of the extension and the center mesh of the funnel's top section leading edge. On the same row of meshes, the funnel must be sewn evenly all the way around the inside of the extension. The funnel's top and bottom back edges must be attached one mesh behind the 28 inch (71.1 cm) cable hoop (front hoop). Starting at the top center seam, the back edge of the top funnel section must be attached 4 meshes each side of the center. Counting around 60 meshes from the top center, the back edge of the bottom section must be attached 4 meshes on each side of the bottom center. Clearance between the side of the funnel and the 28 inch (71.1 cm) cable hoop (front hoop) must be at least 6 inches (15.2 cm) when measured in the hanging position.

Cutting the escape openings. The leading edge of the escape opening must be located within 18 inches (45.7 cm) of the posterior edge of the turtle excluder device (TED) grid. The area of the escape opening must total at least 864 in2 (5,574.2 cm2). Two escape openings 10 meshes wide by 13 meshes deep must be cut 6 meshes apart in the extension webbing, starting at the top center extension seam, 3 meshes back from the leading edge and 16 meshes to the left and to the right (total of four openings). The four escape openings must be double-selvaged for strength. The escape openings shall remain unobstructed at all times.

Alternative Method for Constructing the Funnel and Escape Openings. The following method for constructing the funnel and escape openings may be used instead of the method described in paragraphs F.2.d., F.2.e., and F.2.f. of this section. With this alternative method, the funnel and escape openings are formed by cutting a flap in each side of the extension webbing; pushing the flaps inward; and attaching the top and bottom edges along the bars of the extension webbing to form the V-shape of the funnel. Minimum requirements applicable to this method include: (1) The funnel's top and bottom back edges must be attached one mesh behind the 28 inch (71.1 cm) cable hoop (front hoop); (2) clearance between the side of the funnel and the 28 inch (71.1 cm) cable hoop (front hoop) must be at least 6 inches (15.2 cm) when measured in the hanging position; (3) the leading edge of the escape opening must be located within 18 inches (45.7 cm) of the posterior edge of the turtle excluder device (TED) grid; and, (4) the area of the escape opening must total at least 864 in2 (5,574.2 cm2 ). To construct the funnel and escape openings using this method, begin 3 1/2 meshes from the leading edge of the extension, at the top center seam, count over 18 meshes on each side, and cut 13 meshes toward the back of the extension. Turn parallel to the leading edge, and cut 26 meshes toward the bottom center of the extension. Next, turn parallel to the top center seam, and cut 13 meshes forward toward the leading edge, creating a flap of webbing 13 meshes by 26 meshes by 13 meshes. Lengthen the flap to 18 meshes by adding a 4 1/2 mesh by 26 mesh rectangular section of webbing to the 26 mesh edge. Attach the 18 mesh edges to the top and bottom of the extension by sewing 2 bars of the extension to 1 mesh on the flap in toward the top center and bottom center of the extension, forming the exit opening and the funnel. Connect the two flaps together in the center with a 7 inch piece of # 42 twine to allow adequate clearance for fish escapement between the flaps and the side openings. On each side, sew a 6-mesh by 10 1/2 mesh section of webbing to 6 meshes of the center of the 26 mesh cut on the extension and 6 meshes centered between the 13 mesh cuts 3 1/2 meshes from the leading edge. This forms two 10 mesh by 13 mesh openings on each side.

Cone fish deflector: The cone fish deflector is constructed of two pieces of 1 5/8 inch (4.13 cm) polypropylene or polyethylene webbing, 40 meshes wide by 20 meshes in length and cut on the bar on each side forming a triangle. Starting at the apex of the two triangles, the two pieces must be sewn together to form a cone of webbing. The apex of the cone fish deflector must be positioned within 10-14 inches (25.4-35.6 cm) of the posterior edge of the funnel.

11 inch (27.9 cm) cable hoop for cone deflector. A single hoop must be constructed of 5/16 inch (0.79 cm) or 3/8 inch (0.95 cm) cable 34 1/2 inches (87.6 cm) in length. The ends must be joined by a 3 inch (7.6 cm) piece of 3/8 inch (0.95 cm) aluminum pipe pressed together with a 1/4 inch (0.64 cm) die. The hoop must be inserted in the webbing cone, attached 10 meshes from the apex and laced all the way around with heavy twine.

Installation of the cone in the extension: The cone must be installed in the extension 12 inches (30.5 cm) behind the back edge of the funnel and attached in four places. The midpoint of a piece of # 60 twine 4 ft (1.22 m) in length must be attached to the apex of the cone. This piece of twine must be attached to the 28 inch (71.1 cm) cable hoop at the center of each of its sides; the points of attachment for the two pieces of twine must be measured 20 inches (50.8 cm) from the midpoint attachment. Two 8 inch (20.3 cm) pieces of # 60 twine must be attached to the top and bottom of the 11 inch (27.9 cm) cone hoop. The opposite ends of these two pieces of twine must be attached to the top and bottom center of the 24 inch (61 cm) cable hoop; the points of attachment for the two pieces of twine must be measured 4 inches (10.2 cm) from the points where they are tied to the 11 inch (27.9 cm) cone hoop.

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N.C. Division of Marine Fisheries • 3441 Arendell Street • Morehead City, NC 28557 • 252-726-7021 or 800-682-2632

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