Call them Pavlov's fish: Scientists are testing a plan to train fish to catch themselves by swimming into a net when they hear a tone that signals feeding time. If it works, the system could eventually allow black sea bass to be released into the open ocean, where they would grow to market size, then swim into an underwater cage to be harvested when they hear the signal.

Check out the full story at the CBC.

This particular experiment might seem harmless fun setting fish out to pasture, in the big picture, does evoke the rapid, large-scale domestication of marine species that has occurred over the last decade. Of the aquatic species presently in culture, 430 (or 97%) have been domesticated since the start of the 20th century and, in the last decade, an estimated 106 species haven been domesticated.

Black sea bass might behave like dogs but they are not dogs, which were domesticated 20,000 years ago. What will happen to our wild seas? Will fish soon be fetching frisbees? This study gives new meaning to the "dog faced pufferfish"...


More like this

In keeping with our nautically themed posts (perhaps a teaser for April's upcoming "Carnival of the Blue," hosted by none other than yours truly the Fabulous Flying Bleiman Brothers), we bring you this story: Scientists at the Marine Biological Laboratory (MBL) at Wood's Hole are attempting to…
Domestication is by far man's greatest genetic experiment, and we've been at it for well over 10,000 years. While domestication can produce wild variation (see my post on dogs, for example), a few changes seem to be universal. These include behavioral changes, like reduced fear of humans and…
I'm going to be coming out with a new post in my Evolution series later this week, but in the meantime, for those of you haven't seen them, I'm reposting my first two Evolution posts, beginning with the one that started the series: The Curious Case of Dogs. Man's best friend is much more than a…
Man's best friend is much more than a household companion - for centuries, artificial selection in dogs has made them prime examples of the possibilities of evolution. A century and a half ago, Charles Darwin recognized how the incredibly diverse dogs supported his revolutionary theory in his…

Lets take our fish for a walk!
Love Liz
Let me know if you see this, if not, go to
Click on Images up at the top left side of main screen
Type in Giant Dogface puffer fish
Scroll down.

By Liz Slavik (not verified) on 13 Aug 2008 #permalink

I think that fish is kinder cute!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

By Anonymous (not verified) on 05 Dec 2010 #permalink