Do aquatic plants have stomata?

Question

I am wondering if aquatic plants have stomata or not. I know that non-aquatic plants have stomata to release water(transpiration) and oxygen, and to take in carbon dioxide. Do aquatic plants also have stomata, and if so do they take in water through their stomata? If water is taken in through their stomata, wouldn't other substances such as dissolved salts get in the plants vascular system too? Does the aquatic plant use this salt or remove it, and how would they remove it? Note: I am talking about fully submerged aquatic plants such as kelp.

Answer 1

Partly submerged plants or the epi/hypostoantous plants such as water lily have stomata only on the upper epidermal side of the leaf that is not exposed or submerged in water. Completely submerged plants (hydrophytes) do not have stomata and they rely on epidermal cells absorb all nutrients and gases that dissolved in water.