Changes

[[Image:Sea Lice.jpg|right|thumb|200px|Sea Lice - Copyright Joseph G. Kunkel at The Kunkel Fish & Aquatic Invert Site]]

[[File:Male female sea lice.jpg|thumb|200px|right|Male and female sea lice. Wikimedia Commons]]

[[File:Sea lice on salmon.jpg|thumb|200px|right|Sea lice on a salmon. Wikimedia Commons]]

[[File:Sea lice on salmon.jpg|thumb|200px|right|Sea lice on a salmon. Wikimedia Commons]]

*Economic importance to the fish farming industries

*Economic importance to the fish farming industries

**Especially in North American and in Northern Europe

**Especially in North American and in Northern Europe