Whales in the ocean consume unexpectedly high levels of krill. … Intense fishing by humans has decimated ocean fish stocks in a few decades.
The Mariana Trench and Other Pacific Ocean Trenches Get Toxic Mercury from Fish Carcasses. (Photo : Wikimedia Commons ).
state projects to increase fish passage, bring back beavers in Crooked River watershed. … James Cameron’s Deepsea Challenge 3D. YouTube Movies.