Because when the temperature is cold the snow that is at least partially the source of water in the river doesn't melt as rapidly or maybe it doesn't melt at all until the temperature rises.
get colder
The water gets colder.
it gets warmer then it gets colder
The average Temperature of a river depends on the air temperature, and on recent changes in temperature. Generally, Fresh water bodies have a temperature of 10-20 degrees lower than the average air temperature over the previous 24-36 hours.
It depends. If the river is in the mountains or near the Poles than it's probably colder but if the ocean is like the arctic ocean or something like that then that's probably colder
Catfish and carp require lower levels of oxygen than trout. Since the mouth of a river typically has lower levels of oxygen and the area near the source has higher levels of oxygen, catfish and carp can thrive at the mouth and trout, which require higher levels of oxygen, thrive at the source.
Yellow perch prefer colder water than most pan fish. The Little Fox River, the Milwaukee River, and the Sheboygan River are all places to catch yellow perch in southeastern Wisconsin, but only if water levels are normal.
That really depends upon the river. In a large river, only the upper layer freezes and the water still flows underneath, but a smaller river might freeze completely. The temperature is also a factor, as well as the size of the river. At colder temperatures, larger rivers can freeze completely.
a river is colder then a stream b/c one of them is hit with sunlite
The weather significantly affects the River Ganges in various ways. During the monsoon season, heavy rainfall can lead to increased river flow, causing flooding in adjacent areas and impacting local ecosystems and communities. Conversely, in dry seasons, lower water levels can expose riverbanks and affect water quality. Additionally, temperature fluctuations can influence the river's ecosystem, affecting aquatic life and the overall health of the river.
depends on the season
Not intentionally, and it is not actually a prison, but the lower levels of Rikers Island (the primary jail of NYC) do flood when the East River rises.