Want the lowdown on European markets? In your inbox before the open, every day. Sign up here . The water level at a key German chokepoint on the Rhine River jumped on Saturday, easing a crisis that’s hampered energy and industrial production this month. The marker at Kaub — a narrow and shallow waypoint west of Frankfurt — jumped to 47 centimeters by early afternoon on Saturday from 35 centimeters a day earlier, according to the Federal Waterways and Shipping Authority. At that depth it’s once again economical for many barges to sail through the waypoint carrying cargo. The marker is set to rise sharply from here, to 150 centimeters by Tuesday. The level is not the actual depth of the water, which can be several feet deeper, but rather a measure of navigability. An extended period of extremely hot, dry weather has depleted European rivers this summer, disrupting […]