I was trying to read about why freshwater fish die in saltwater but it was still a little confusing to me.
In: Biology
Speaking strictly of salt water or fresh water fish.. its more of an osmosis process..
Salt water fish cells have a high concentration of salt.. when put in fresh water, the cells get too much fresh water in them and takes the salt out, they get too bloated and die.
Fresh water fish cells have the completely opposite issue.. so when in salt water, their cells will get too concentrated with salt that they will get dehydrated and die.
Sometimes you see fresh water or salt water fish in brackish water ( the point where fresh water and salter water start mixing). They can hang out in the water for a while.. but eventually have to go back to the respective waters or die.
There are other fish such as salmon, steelhead, sturgeon and others and go back and forth between the too.. they are called Anadromous fishes. ( but most of them are born in fresh water, go out to the ocean, go back to fresh water to breed and die)
Source: my bf is a hard core Fishman. His fish knowledge is immense.
Edit: words, and more updated info from bf who loves talking about fishes..🤣🐟🐠
Latest Answers