Where do invasive species come from? In some cases, nonnative species can hitch a ride to new places on ships or via marine debris, like this derelict vessel near Olympic Coast National Marine Sanctuary. Though species can also travel from one place to another on organic matter, plastic and other manmade materials don't degrade as quickly and are more likely to cross large distances. You can help reduce the spread of invasive species by reducing marine debris: always dispose of your waste properly and join beach cleanups in your area whenever you can! (Photo: NOAA)
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/44124469278@N01">National Marine Sanctuaries</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/onms/43727101732/">Colonized Boat at Cape Disappointment</a>