You are more buoyant in salt water than in fresh water, so it takes less energy just to stay afloat, making it easier to swim.
probally fresh because no salt in mouth or eyes addition: it is easier to float/swim in seawater since seawater is denser than fresh water.
Because there is salt in sea water and salt makes you float better so is easier to swim.
Salt water is denser that fresh water, so a swimmer (and ships) float higher in saltwater.
if they are naturally used to fresh water
Salt water has a slightly higher density, so it will be a little quicker to swim in fresh water.
salt water
Catfish do not swim in the ocean, they are found in rivers, creeks, and fresh water ponds.
Swim
hmm.. swim?
Fresh water with little to no chlorination.
salt water
for a simple answer,Yes