Freshwater salmon live in rivers and lakes, while saltwater salmon live in the ocean. Freshwater salmon have a more streamlined body shape and are typically smaller in size compared to saltwater salmon. Saltwater salmon tend to have a silvery coloration, while freshwater salmon may have a more mottled appearance. Additionally, freshwater salmon must migrate to the ocean to mature and spawn, while saltwater salmon complete their entire life cycle in the ocean.
saltwater has salt in it, freshwater does not.
I think marine aquariums are saltwater unlike freshwater that do not have saltwater
Maybe that saltwater animal can endure hard water and freshwater animals can't.
Certain freshwater fish can survive saltwater conditions; examples are black mollies, mono's and scats. All of these fish aren't truly freshwater or saltwater, they are Brackish. Brackish is between freshwater and saltwater, and so these fish are highly adaptable.
salmon
Fresh water.
There are numerous differences not only in the type, body shape and even colours, but the fact that a goldfish is a freshwater fish, and a clownfish is a saltwater fish.
anadromous fishes - live in ocean reproduce in freshwater or catadromous fishes - live in freshwater but reproduce in saltwater amphidromus fishes - move between fresh and saltwater for non-reproductive reasons
The same as in the ocean
The main differences between prawns and shrimp are their size, anatomy, and habitat. Prawns are typically larger in size, have branching gills, and live in freshwater, while shrimp are smaller, have plate-like gills, and are found in saltwater.
Salmon living in freshwater environments typically have a more streamlined body shape and brighter colors compared to those in saltwater. They also have different behaviors and diets, with freshwater salmon often feeding on insects and other small organisms, while saltwater salmon feed on larger prey like fish. Additionally, freshwater salmon must navigate obstacles like dams and predators, while saltwater salmon face challenges such as predators and changing ocean conditions.
Freshwater mussels live in rivers, while saltwater mussels live in oceans. Even though it is mussels, it differs a lot. Freshwater mussel and saltwater mussels hunt different things, because they live in different places.