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
4951	Китай потребовал гарантий отсутствия коронавируса в рыбной продукции из России	tass	2020-10-01	RU
4952	Study: Commercial fisheries regularly catch threatened, endangered species	upi	2020-09-21	AU
4953	Alaska tribal group sues over commercial fishing system	CBC News	2020-08-19	CA
4954	Нельму оценили по достоинству	Российская газета	2020-10-01	RU
4955	Китай отказался от российской рыбы	РИА Новости	2020-10-01	RU
4956	Огромная мертвая рыба принесла богатство пожилой женщине	The Times of India.	2020-10-01	IN
4957	Scientists discover ‘walking’ fish in depths of Barrier Reef	australian times	2020-09-11	AU
4958	At Monterey Bay Aquarium, the sea animals are doing great but business is tanking	Los Angeles Times	2020-09-15	US
4959	Slippery when wet: Fish, seaweed to help cargo ships reduce fluid friction	upi	2020-09-15	US
4960	Fish exposed to noise pollution likely to die early: Study	channelnews asia	2020-09-16	US
4961	Resort owners accused of illegally harvesting prized bait fish	Associated Press	2020-09-11	US
4962	Lamprey fish have terrifying teeth and no jaw — but there's a global movement to save this living fossil	abc	2020-09-11	CA
4963	Manitoba chiefs, commercial fishers call for independent review of Lake Winnipeg's fish population	CBC News	2020-09-12	CA
4964	60-pound chinook part of a ‘unicorn’ year for fishing, says Comox guide	comoxvalley record	2020-09-14	CA
4965	Illegal fishing in Mexico and policy responses	brookings	2020-09-14	MX
4966	‘Marathon man’ angler unofficially breaks own world record catching 2,645 fish in 24 hours	foxwilmington	2020-09-11	US
4967	Horrifying Images Reveal Bizarre Parasite That Replaces Tongue of Its Fish Host and Feeds on Blood	newsweek	2020-08-12	AU
4968	Overlooked Sea Louse May Be a Big Problem for Salmon	hakaimagazine	2020-09-16	CA
4969	Aquarium Fish, Hold the Cyanide	hakaimagazine	2020-08-13	ID
4970	Сахалин и Камчатка урегулируют промысел лосося у Северных Курил	Российская Газета	2020-09-25	RU
4971	Продажи в РФ байкальского омуля в 4 раза больше разрешенного вылова	interfax	2020-09-24	RU
4972	На Дальнем Востоке впервые в России поймали редчайшую большую рыбу	zen.yandex	2020-08-05	CA
4973	Rare fish washes ashore at Whiffen Spit	The Times Colonist	2020-09-22	CA
4974	13-year-old angler fishes 100 straight days	kare11	2020-08-07	US
4975	Рыбаки думали, что это бревно, а оказалась редкая рыба	zen.yandex	2020-09-14	RU

198 of [217 - pages.]