What will happen to a freshwater fish if you put it into the ocean?

Question

1)It won't be able to get enough salt for its body
2)the amount of salt it takes in will be too much for its body

Answer 1

If you put a freshwater fish into the ocean, the correct statement is:

2. The amount of salt it takes in will be too much for its body.

Freshwater fish are adapted to low-salinity environments and have body fluids that are less salty than the surrounding ocean water. When placed in a high-salinity environment like the ocean, freshwater fish cannot effectively regulate the influx of salt, which leads to osmotic stress. This can result in dehydration as water moves out of their bodies to balance the concentration of salt in their surroundings. Ultimately, this can lead to serious health issues or death if the fish cannot return to a freshwater environment.