Fishing sinker weight acting as barbs. Claw sinkers are used in surf fishing on sandy bottoms with strong currents, mainly to prevent the sinker from getting carried off with the current. Upon casting a claw sinker, the line is briefly tugged so that the claws will dig themselves into the sand, allowing the rig to stay in place. An ideal material for a fishing sinker is environmentally acceptable, cheap and dense. Density is desirable as weights must be as small as possible, in order to minimize visual cues which could drive fish away from a fishing operation. In ancient times as well
Arbor Networks In March 2009, Arbor worked with 100 ISPs to create a new network monitoring system, called ATLAS 2.0. In October 2009, the company estimated that Google paid almost nothing for YouTube's bandwidth, noting that Google probably used dark fibre instead to run the website. On August 31, 2010, Tektronix Communications announced that it has completed its acquisition of Arbor Networks. Upon completion of the acquisition, Arbor Networks joins Danaher Corporation's portfolio of communications and enterprise companies, which includes Tektronix Communications. On September 3, 2013, Arbor Networks announced that it has acquired privately held Packetloop, a leader in Security Analytics based