Aquatic Ecosystems Crossword Puzzle

What measures the amount of salts dissolved in water?
Which aquatic layer has enough sunlight for photosynthesis?
Which aquatic layer is below the the photic zone?
Which aquatic layer is located at the very bottom of a body of water?
What is the shallow, near-shore part of the photic zone called?
What part of the photic zone is home to a rich amount of invertebrates?
What are the areas of land that are flooded with water for part of the year called?
What are the areas that are located near a river and are periodically flooded called?
What forms when freshwater from land drainage meets water from an ocean or inland sea?
What is the vertical flow of cold, nutrient rich water towards the surface of a body of water?
What transports warm water rich in dissolved gases from the surface of the ocean to the depths of the ocean?
What are aquatic ecosystems with a salinity of 0.5 to 30 ppt called?
What is an isolated, U-shaped body of water called?