Attack of the Frankenfish


The Chicago Tribune reports a study of closing ship traffic on the Chicago River to halt the spread of Asian carp to the Great Lakes:

As state and federal officials hunt down the elusive Asian carp, the U.S. Army Corps of Engineers is looking at the financial and environmental costs of closing navigational locks in Chicago waterways and shutting down the Chicago River to boat traffic as many as four days a week. Working under intense scrutiny from Washington, D.C., and around the Midwest, the Army Corps intends to issue its recommendations this month and hopes to have them in place by April 1.

It isn't only in pro athletics that yesterday's hero becomes today's zero. Fish also fall from grace. The Asian carp's German cousin was once the darling of progressive scientists and sportspeople. Spencer Fullerton Baird, secretary of the Smithsonian Institution, proudly raised this imported miracle fish in ponds on very grounds of the Washington Monument in the 1880s. State officials joined the movement, for example in Minnesota.

Anders Halvorsen's new book on another former darling, the rainbow trout, tells a similar story. Ken Ringle, writing in the Washington Post, suggests that scientists and bureaucrats have learned humility from their predecessors' mistakes:

[I]n their campaign to increase biological diversity by stocking the nation's streams with rainbows over the past century, state and federal fish commissions unwittingly reduced diversity. Hatchery-bred fish have proved rapacious predators that gobble up frogs and native fish, some species of which have been pushed to endangerment. Even songbird and bat populations have suffered near mountain lakes where non-native rainbows consumed mayflies and other insects on which avian populations feed.

Unfortunately, none of this is a clear guide to policy on genetically modified organisms. It supports the view of GM crop advocates that conventional animal and plant breeding, and monoculture, can be very risky. But by showing that biological, cultural, and political influences can interact in surprising ways, the Frankenfish also raise the possibility that we're overlooking other risks. I recently read a story in the Times about an aquaculturist who is introducing, "pacu, a thin, silvery import from South America that she called 'vegetarian piranha.'" 


She and other fanciers should read the Wikipedia article. It might be better to describe pacu as finny pit bulls, and yes, released ones already alarm some wildlife officials.

Be careful what you fish for.
Presented by

Edward Tenner is a historian of technology and culture, and an affiliate of the Center for Arts and Cultural Policy at Princeton's Woodrow Wilson School. He was a founding advisor of Smithsonian's Lemelson Center.

How to Cook Spaghetti Squash (and Why)

Cooking for yourself is one of the surest ways to eat well. Bestselling author Mark Bittman teaches James Hamblin the recipe that everyone is Googling.

Join the Discussion

After you comment, click Post. If you’re not already logged in you will be asked to log in or register.

blog comments powered by Disqus

Video

How to Cook Spaghetti Squash (and Why)

Cooking for yourself is one of the surest ways to eat well.

Video

Before Tinder, a Tree

Looking for your soulmate? Write a letter to the "Bridegroom's Oak" in Germany.

Video

The Health Benefits of Going Outside

People spend too much time indoors. One solution: ecotherapy.

Video

Where High Tech Meets the 1950s

Why did Green Bank, West Virginia, ban wireless signals? For science.

Video

Yes, Quidditch Is Real

How J.K. Rowling's magical sport spread from Hogwarts to college campuses

Video

Would You Live in a Treehouse?

A treehouse can be an ideal office space, vacation rental, and way of reconnecting with your youth.

More in Technology

From This Author

Just In