How do you train a fish?

How do you train a fish?

By Rebecca Morelle

Source: BBC News

10/2/2009

The small black fish swim around the tank; gracefully gliding back and forth with little discernible pattern.

Then, barely audible over the watery whirr of the marine laboratory, a low buzz sounds.

And a few seconds later, the scene is transformed as the fish crowd into a small area, corralling themselves into a tightly packed ball.

They are awaiting a reward.

"Now we drop some food into the feeding tube," says Scott Lindell, who is running the experiment.

"And voila, they are satiated and happy."

Bass tones

Mr Lindell is the director of the scientific aquaculture programme at the Marine Biological Laboratory (MBL) in Woods Hole, Massachusetts. And for the last few years, he has been training fish.
It's a Pavlovian response, he explains.

Just as 19th Century scientist Ivan Pavlov conditioned dogs to associate the sound of a bell with the prospect of food, Mr Lindell's black sea bass associate a 280Hz tone emitted from an underwater speaker with food, and respond by gathering in a partitioned "feeding zone".

Bluefish

Continue...

News Id		Source	Stamp	country
4701	Invasive species are greatest threat to Northwest salmon, report says	The Oregonian	2009-03-05	US
4702	Lake Michigan Fish Populations Threatened By Thriving Junk Food Mussel, Decline Of Nutritious Tiny Shrimp	Underwatertimes	2009-02-19	US
4703	Two-headed fish probe finds no pesticide in water	abc	2009-02-18	US
4704	Historical Photographs Expose Decline In Florida's 'Trophy' Fish; 'Large Fish More Abundant In The Past'	Underwatertimes	2009-02-17	US
4705	Anglers keen to catch 'Phar Lap'	dailyexaminer	2009-02-18	AU
4706	Couple shaken after snowmobile crashes into fish house on Lake Minnetonka	fox news	2021-02-01	US
4707	Fast-growing fish farming can help the environment, researcher says	CBC News	2009-01-02	US
4708	Zoo 'first' to breed dragon fish	bbc	2009-01-14	UK
4709	To Work With Six Identified Nations To Address Illegal, Unreported, And Unregulated Fishing	Underwatertimes	2009-01-13	US
4710	Fish Poop Helps Balance Ocean's Acid Levels; 'A Long-standing Puzzle Facing Marine Chemists'	Underwatertimes	2009-01-15	UK
4711	2 Billion Tons: Researcher Gives First-ever Estimate Of Worldwide Fish Biomass And Impact On Climate Change	Underwatertimes	2009-01-15	CA
4712	Gift Of Caviar May Be Product Of Endangered Species' Illegal Harvest	Underwatertimes	2009-01-23	US
4713	NOAA: Restrictions Recommended As Three Common Pesticides Found To Harm Salmon	Underwatertimes	2008-11-18	US
4714	Trout continues over fish planting	sfgate	2011-12-08	US
4715	Fish Without the Catch: Seafood Alternatives Are on the Rise	sentientmedia	2021-01-28	CA
4716	Lack of Vitamin B1 Killing Great Lakes Fish	usgs	2014-07-07	US
4717	Something was killing baby salmon. Scientists traced it to a food-web mystery	latimes	2021-01-26	US
4718	Nine fishermen convicted of poaching	AFP	2008-11-05	SW
4719	Genes Hold Secret Of A 'Whole Range Of Biological Functions' In Survival Of Antarctic 'antifreeze Fish'	Underwatertimes	2008-10-16	US
4720	Rare wild salmon turns up in Rhine	UPI	2008-10-15	SZ
4721	NOAA Charges 'Unscrupulous' Charter Operators With Illegal Fishing For Striped Bass	Underwatertimes	2008-11-14	US
4722	Atlantic Wolffish: Fearsome Fish That Deserve Protection? 'Rapidly Headed Toward Extinction'	Underwatertimes	2008-10-02	US
4723	Pictured: The incredible Siamese twin fish conjoined at the stomach	dailymail	2008-10-03	UK
4724	Dutch make hole in the dyke to allow migrating fish through	DutchNews	2021-01-26	DK
4725	Doctors In Colombia Remove 18cm Fish From Man's Throat	ladbible	2021-01-21	CO

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