Reservoirs are artificial lakes that are created when humans dam rivers for irrigation, flood control, or hydroelectric power. Native fish species that take up residence in reservoirs may struggle to adapt because their new...
The devastating tsunami that struck the Tohoku Coast of Japan in March of 2011 caused destruction on a scale that is unfathomable to most people. A report published shortly after the tsunami found that...
Green crabs (Carcinus maenas) are a relatively small species of crab that live in intertidal zones and shallow coastal waters (Figure 1). They are native to the Atlantic coast of Europe and North Africa...
If you have never seen a muskellunge (Esox masquinongy), they are magnificent, large, and powerful apex predators in the waterbodies they reside (Figure 1). Georgian Bay in Lake Huron supports a self-sustaining native muskellunge...
The unprecedented duration of the most recent government shutdown has implications for our nation’s natural resources. During the fourth week of the shutdown, I checked in with Nathan Wiese, the Project Manager for the...
Picture a beautiful flowing stream, teeming with life and sparkling in the sunlight. Now, imagine that in a matter of days it has all disappeared, evaporated into the air and carried off with the...
In many rivers throughout the world, dams have greatly altered the aquatic ecosystem. These structures block migratory routes for anadromous species that live in saltwater and migrate into freshwater to spawn, preventing them from...
Northeast of Italy’s stiletto heel, in the Southern Adriatic Sea, the continental shelf drops off into a submarine feature known as Bari Canyon (Figure 1). This undersea canyon is similar to one you might...
Dams have a variety of effects on a river. Changes in temperature, sediment transport, substrate composition, and discharge are just a few examples of how dams can impact fish habitat. When a dam is...
The round goby (Figure 1) is a relatively small fish species endemic to the Caspian and Black Seas. They have invaded North America and Western Europe, packing a nasty punch to native species. These...
