Chub in lakes undertake spawning migrations into inflowing streams. A hinged gate only remains open in the inflowing direction. It inhabits the northern Black Sea coasts and inflowing rivers. The lake is fed by as many as 330 inflowing rivers. Reducing inflowing heat reduces the loss of liquid nitrogen in storage. Not all ancient Martian lakes were fed by inflowing valley networks. The main inflowing rivers are the Sammamish and Cedar Rivers. None of these lakes have perennial inflowing streams or outlets. This shallow lake is a closed basin, with inflowing streams but no outflow. It lacks directly inflowing river which can disturb the precipitate on the lake bottom. Alongside these advective transports, inflowing water will also diffuse. The inflowing water would then evaporate quickly because of the desert climate. In many cases, the inflowing gas forms an accretion disc around the accretor. Other inflowing rivers include Helena Run, and outflow from many small springs in Yalaha.