When a sailor misses a chance to go to sea, he tends to wander around his garden, paying special attention to the clouds and the weather, as if he were walking the deck in the sea air. He circles his home like it were a shipyard, looking for repairs.
Think of an aquatic habitat as far away from the deep-sea as you can get without coming up on land, and we will find a connection to the deep-sea. River rock = settlement substrate. Kelp forest = urchin food. Beaches = spawning grounds for tuna food. Mangroves = seafood … food. Bumper stickers in the Carolinas say it best – “no wetlands, no seafood.”