Do creeks and streams have tides, if so how do they fluctuate.

If the creeks or streams are close enough to salt water they will have a tide. When the ocean tide rises so does the creeks and streams. Sometimes creeks and river will flow backwards under tidal conditions. A tide is the rise and fall of water caused by the moon's gravitational pull on the earth. Tide causes current and the rise of the tide in the ocean pushes against the creek flow and causes a back flow. Tides will fluctuate from day to day and sometimes by wind. The St. Johns river in Florida on a rising tide can effect the River 100 miles up river from the mouth. If you can catch the rising tide right you can hammer fish. Then when the fishing slacks off you can run up the river and catch the rising tide again. This will help you duplicate your pattern all the way up the river or stream.