Less farm and industrial runoff reaches such sea: farm runoff - with high quantities of fertilizer - provides the development of oxygen-consuming algae, which depletes the oxygen and kills marine life.
dissolved oxygen is dissolved oxygen
The oxygen dissolved in water is a measure of dissolved oxygen (DO).
there is more dissolved oxygen present in a stream because the movement and the bubbling of the air allows more oxygen to be ingested
Why does the level of dissolved oxygen go down after sunset? because it gets colder.
Because it does.
Water does have sufficient dissolved oxygen to sustain aquatic life. This is true because aquatic life has adapted to the limited oxygen using gills.
Dissolved oxygen is the current amount of oxygen in the water. A certain amount of Dissolved Oxygen Is needed to keep the fish alive, if any of the dissolved oxygen decreases by either a little or a lot it can cause changes in the water, normally if the dissolved oxygen decreases so do the fish and aquatics life's life.
Three abiotic factors that affect the Gulf of Mexico are: Its salinity, it's dissolved oxygen content and finally the temperature of the water. All three of these will have an impact on the Gulf of Mexico.
Dissolved oxygen is the current amount of oxygen in the water. A certain amount of Dissolved Oxygen Is needed to keep the fish alive, if any of the dissolved oxygen decreases by either a little or a lot it can cause changes in the water, normally if the dissolved oxygen decreases so do the fish and aquatics life's life.
Oxygen can be dissolved in water. This is biologically important because animals that live in the water, such as fish, need to get oxygen from the water to perform respiration and live.
Because gases dissolved in water is different then solids dissolved in water, warm water holds less dissolved oxygen than cool or cold water Hot water released in rivers or streams lowers the dissolved oxygen concentrations. Since fish also needs oxygen to live, they can't survive because there is not enough dissolved oxygen in the water for them to live off of.
I personally would expect the mountain stream to have more dissolved oxygen, because I know that oxygen dissolves better in cold water.