Brackish water is water that is saltier than fresh water, but not as salty as sea water. It may result from mixing of seawater with fresh water, as in estuaries, or it may occur naturally, as in brackish fossil aquifers. Technically, brackish water contains between 0.5 and 30 grams of salt per literâ€”more often expressed as 0.5 to 30 parts per thousand (ppt or â€°). Thus, brackish covers a range of salinity regimes and is not considered a precisely defined condition.
water that is neither fresh nor saltwater, but is somewhere in between. In nature this occurs at the mouths of rivers and swamps near the sea. Some fish live in salt water but are spawned in brackish or fresh water and vice versa. There are several brackish species available in the aquarium hobby, see Freshwater Fish for descriptions.
bodies of water that are both fresh and salt which are lesser or greater in saline content which is dictated by tidal pulls. As the floodtide comes in and raises the water the saline content raises, conversely, as the ebb tide recedes so does the level of salt content, which in turn is aided by the continuing flow of fresh water from rivers and creeks to estuaries.
A taste fault giving the coffee brew a salty and alkaline sensation. The result of salts and inorganic alkaline material left after evaporation of water from the brew due to excessive heat after brewing.