Clarias batrachus have been introduced into certain areas of the United States and have been able to infest bodies of water where they kill other forms of aquatic life but cannot themselves be controlled because of their ability to move over land as well as in water and have become dangerous and uncontrollable public nuisances, and it now appears that said fish may be introduced into the corporate limits of the city of North Bend and it is necessary in the interest of the public safety, health and welfare that immediate action be taken. (Ord. 1393 § 3, 1970)