Kitco News - As gold continues its weak trend and tests lows last seen in 2014, one market veteran says the yellow metal may be poised for further losses. 'The real issue has been a return in strength in the dollar,' Gary Wagner, editor of thegoldforecast.com, told Kitco News. He compared gold to a salmon swimming upstream, struggling to maintain gains as the dollar index pressures the metal. Gold prices reached a low of $1,140.60 on Thursday, which Wagner says is a critical level to watch. 'That’s the lowest low that we’ve had in 2015,' he said. If the $1,131 level does not hold, Wagner said 'we could see some real downside pressure in gold, possibly taking it as low as $1,080-1,090.' Looking at silver, Wagner said his key level for the white metal stands at $14.50 an ounce. The dollar remains gold’s biggest threat right now, and Wagner explained that as long as U.S. equities remain strong and the Federal Reserve begins its rate hike cycle, the dollar will maintain its momentum. “I think we could easily see the dollar move up to about $100 on the dollar index.”