These anchovy runs into the Yacht Harbor occur regularly and the Santa Cruz takes steps to mitigate deoxygenation and mass die-off through mechanical aeration machines located at the end of several of the docks throughout the harbor.
2.
Mechanical aeration of a foam bath may produce much more foam than is sought the Internet is replete with first hand accounts and sometimes photographs of such experiences and many mechanically aerated baths are hot tubs which are shared and not drained between uses and so are desired to be kept free of non-maintenance materials.