. Commercial fisheries review. Fisheries; Fish trade. 63 spaced 2^ feet apart. Throats are at the sec- ond and fourth hoops, and a laced brailing hole is at the top between the sixth and seventh hoops. A system of corks floats the gear, and leads on the bottom lines give it vertical stability. Construction materials were: Webbing-- No. 18 nylon thread; line s--li-inch braided nylon; plastic floats--3 by 4 inches; leads-- No, 6; and oak ho op s--7-foot d i am e t e r. Mesh size throughout is 7-inch stretch measure. Use and Results The net was designed primarily to take bigmouth buffalo. For thi
. Commercial fisheries review. Fisheries; Fish trade. 63 spaced 2^ feet apart. Throats are at the sec- ond and fourth hoops, and a laced brailing hole is at the top between the sixth and seventh hoops. A system of corks floats the gear, and leads on the bottom lines give it vertical stability. Construction materials were: Webbing-- No. 18 nylon thread; line s--li-inch braided nylon; plastic floats--3 by 4 inches; leads-- No, 6; and oak ho op s--7-foot d i am e t e r. Mesh size throughout is 7-inch stretch measure. Use and Results The net was designed primarily to take bigmouth buffalo. For this reason, it is floated on the surface (fig. 2). The lead is usually placed perpendicular to shore and from shore to net, although "openwater" sets also are practical. The net is set by fastening the tag end of the lead to shore, stretching the lead and net out longi- tudinally, anchoring the crib, and then an- choring the wing s in position. The crib an- chor rope is 100 feet long and the wing an- chor ropes are 50 feet long. The wing an- chor ropes are yoked about 30 feet from the anchor with one line leading to the bottom line and the other to the float line. The gear has not been fished on the bottom, but this could be done by a change in the float-lead ratio. We recommend that the net, as now rigged, not be set in water depths over 30 feet. To fish depths greater than 30 feet would re- quire anchor lines longer than those used at present to prevent excessive downward pull that would cause disfiguration of the net or submergence of float lines. The weight of longer anchor lines would probably require more floats at the wing and lead tips, and on the crib Fig. 2 - Floating trap net in fishing position on Oalic Reservoir, S, Dak, In this set tlie lead extends to shore. Note floating de bris--a common problem on this newly formed Please note that these images are extracted from scanned page images that may have been digitally enhanced for readab
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Keywords: ., book, bookcentury1900, booksubjectfisheries, booksubjectfishtrade
