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What is the connection between organisms in a stream and the dissolved oxygen level?
Wiki User
∙ 15y ago
Organisms in streams need oxygen to live when lacking dissolved oxygen it will kill these organisms. edit: unless the organisms in the stream are photosynthetic, in which case they will increase the oxygen levels. however, by far, most organisms in a stream are not photosynthetic and oxygenation occurs solely through aeration and surface area dissolving from the air. so, to answer the question, organisms (most organisms which aren't plant-based photosynthetic organisms) decrease the amount of oxygen in a stream. edit: a flowing stream has turbulence which helps aerate the water, increasing dissolved oxygen. In contrast, stagnant water tends to be low in dissolved oxygen, except near the surface. Multicellular animals (like fish) need a good supply of dissolved oxygen to thrive.
Wiki User
∙ 15y ago
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What is dissolve oxygen?
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.
Unicellular organisms obtain oxygen and dissolved substances from their surroundings by?
Diffusion and osmosis.
How might you account for dissolved oxygen concentrations of such a low value at a temperature of 25C?
Other factors must have caused the low dissolved oxygen levels. Bacteria and other organisms can lower the dissolved oxygen of water when they respire aerobically.
What is the difference between dissolve oxygen and oxygen?
Dissolve oxygen is when oxygen is dissolved and oxygen is just normal oxygen!
What two major factors do marine organisms depend on for their survival?
They depend on FOOD and DISSOLVED OXYGEN.
How do dissolved gases get in ocean water?
The main dissolved gases found in the ocean include, but are not limited to: carbon dioxide, oxygen, and hydrogen. Dissolved gases, especially oxygen, are important, since it provides dissolved oxygen for aquatic organisms to "breathe" in. Also, the carbon dioxide dissolved in the ocean helps lessen the amount of carbon dioxide in the environment.
Normal ranges for dissolved oxygen test?
dissolved oxygen is dissolved oxygen
What is the oxygen dissolved in water is a?
The oxygen dissolved in water is a measure of dissolved oxygen (DO).
How can a body of water can be depleted of its oxygen?
Water can be depleted of it's oxygen by a number of different ways. Short of putting the water in a vacuum and "sucking" the dissolved oxygen out, oxygen-breathing organisms such as fish take oxygen from the water through respiration, for example. It is unlikely a large body of water to become completely deoxygenated due to the presence of photosynthetic aquatic organisms (plants) and the fact that oxygen is also dissolved in the water at the water's surface.
How does the temperature of water effect the dissolved oxygen?
Well, dissolved oxygen impacts water quality because if the level of the dissolved oxygen is too low then organisms can die. _________________________________________________________________ That is okay, but I want to what dissolved oxygen tests for. ------ For the water quality are tested: - total oxygen demand (TOD) - biochemical oxygen demand (BOD) - chemical oxygen demand (COD) - sometimes, carbonaceous biochemical oxygen demand (CBOD) For details about the analytical procedures I recommend you to read a book or a collection of analytical methods for water, searching in a library or searching on the Internet.
What's dissolved oxygen?
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.
Why do pollutants affect the amount of dissolved oxygen in water?
Some people get lazy and refuse to wash they re boat upon going into different waters and bring in invasive species which lower the oxygen levels. The worst is algae with uses the dissolved oxygen in the water to breath and suffocate the fish living below them.
