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Because of the process of osmosis, whereby water diffuses from an area where it has low concentration to one where it has high concentration.
The metabolism of marine fish is different from that of Freshwater Fish, in that they are specifically adapted to live in waters containing a high salt content. As a result, their bodies contain less water- they have less in their bloodstream, and a higher content of salt in their tissues and organs.
When placed in freshwater conditions, water will naturally diffuse from it's high concentration to the area where it is of low concentration- the tissues and body of the fish. As a result, the poor animal's body tisues and organs become engorged with water, resulting in rupture, haemorrhanging and the eventual 'bursting' of the creature's body.
For this reason, it is very important when keeping a tank of marine fish (be they tropical or otherwise) that the salt content of the water is VERY carefully carefully balanced. It must be in equilibrium with the fish's own internal salt and water balance- too little salt, and the above situation can happen, but too much salt in the water, and the reverse can take place, whereby the fish contains more of a water concentration than the surrounding water, and become dehydrated and die.
What else can I help you with?
Where is the under water marine safari photo game in buildabearville?
under water.
Where do most marine mammals live?
under water
What if they lay eggs in there salt water?
If they are grey and fertile, they will burst upon contact with the salt water, and you will have little planktonic zoeae swimming around. Unless you have a cycled marine tank with a sponge filter, you have no hope of raising them through 5 larval stages to adulthood, and you should throw them out. if the eggs are red, and did not hatch in the salt water, they are not fertile. Just thrown them away.
Why does an aluminum can burst when it's on fire then immedietly put in water?
I can't think of any reason it would "burst" under those conditions.
Where does a marine turtle live?
it lives under the water and land
What marine animal has ten legs?
under water spideer!
What is the best cement to use under water?
marine paint
What is the depht under marine water?
well i was wondering too
If enough water pressure builds under the surface of the ground the water can burst through cracks in the surface forming a n?
Geyser
What is the name for the career that studies under water creatures?
Marine Biologist
If enough water builds under the surface of the ground the water can burst through cracks in the surface forming a?
Geyser
Why your eardrum burst inwardly under deep sea?
Because the surrounding water pressure will push it that way.
