Fish hook with some form of corrosion-resistant surface coating. Corrosion resistance is required not only when hooks are used, especially in saltwater, but while they are stored. Additionally, coatings are applied to color and/or provide aesthetic value to the hook. At a minimum, hooks designed for freshwater use are coated with a clear lacquer, but hooks are also coated with gold, nickel, Teflon, tin and different colors. There are a large number of different types of fish hooks. At the macro level, there are bait hooks, fly hooks and lure hooks. Within these broad categories there are wide varieties of hook types
Dry fly fishing where wet flies and especially nymphs are used. They typically only come to the surface to feed when there is a large bug hatch during which thousands of aquatic insects grow wings and leave the water to mate and lay eggs. Particularly during the summer months and on smaller mountain streams, trout also often feed on terrestrial insects such as ants, beetles and grasshoppers when they fall onto the water surface. It is on these surface-feeding occasions that the dry fly can be an effective lure. At certain times, Salmon will also rise to a fly on the surface and