Asian carp were imported in the 1970s to cleanse Deep South aquaculture and sewage treatment ponds. Some escaped during floods and have migrated northward in the Mississippi River and its tributaries.
Following this, it is believed that separating the Great Lakes and Mississippi River systems is the “ultimate solution” to prevent voracious Asian carp from overrunning the lakes, a potential step toward resolving a longstanding regional feud.
Reaching lengths of 2 to 3 feet, adult sea lampreys resemble eels but behave more like leeches. With round, disk-like mouths and sharp teeth, they kill or severely weaken fish by latching on to and sucking out their blood and other bodily fluids.
The species has been a problem in Lake Michigan for decades. Now, workers are set to poison a Lake Michigan stream in a bid to destroy the larvae of sea lamprey - dubbed the "Vampire Fish".
Researchers from the University of Valencia and the Natural History Museum of Berlin have studied the fossilised remains of scales and bones found in Teruel, Spain, and the south of Zaragoza. It is believed that they belong to a new fish species called Machaeracanthus - a species of spiny shark.
 |
| English: Asian carp (Photo credit: Wikipedia) |
