What about salmon?

Very few Salmon servive the trip back from the ocean, and many more die! If you build a pipe, they might go in and all die because of the pollutedness of californias citys. SAVE THE FISH! SAVE THE FISH! SAVE THE FISH! SAVE THE FISH! SAVE THE FISH! SAVE THE FISH! SAVE THE FISH! SAVE THE FISH! SAVE THE FISH! SAVE THE FISH! SAVE THE FISH! SAVE THE FISH! SAVE THE FISH! SAVE THE FISH! SAVE THE FISH! SAVE THE FISH! SAVE WATER!