Quagga Mussels As Prey
In 1994, invasive species biologist Anthony Ricciardi determined that yellow perch did not find the invasive dreissenid species palatable. In 2004, he determined that yellow perch, over the intervening 10 years, had developed an appetite for the Quagga mussel. While sounding like good news, it is tempered with the knowledge that it introduces contaminants into the food chain, notably Clostridium botulinum.
Redear sunfish, a specialized mollusc-eating fish, are now being stocked in the Colorado River drainage as a defense against the quaggas. As with the yellow perch, this predator–prey relationship could cause toxins and microorganisms to move up the food chain.
Although quaggas are edible for humans, eating them is not recommended due to the accumulation of toxins, pollutants, and microorganisms within the mussels' bodies.
Read more about this topic: Quagga Mussel
Famous quotes containing the word prey:
“The way of Providence is a little rude. The habit of the snake and spider, the snap of the tiger and other leapers and bloody jumpers, the crackle of the bones of his prey in the coil of the anaconda,—these are in the system, and our habits like theirs. You have just dined, and however scrupulously the slaughter-house is concealed in the graceful distance of miles, there is complicity, expensive races,—race living at the expense of race.”
—Ralph Waldo Emerson (1803–1882)