One fish, two fish: New sensor improves fish counts

One fish, two fish: New sensor improves fish counts

Source: underwatertimes

2/2/2006

Researchers at MIT have found a new way of looking beneath the ocean surface that could help definitively determine whether fish populations are shrinking.

A remote sensor system developed by Associate Professor Nicholas Makris of mechanical engineering, along with others at MIT, Northeastern University and the Naval Research Laboratory, allows scientists to track enormous fish populations, or shoals, as well as small schools, over a 10,000-square-kilometer area - a vast improvement over conventional technology that can survey only about 100 square meters at a time.

"We're able to see for the first time what a large group of fish looks like," said Makris, who compared the dramatic improvement to the difference between seeing everything on a television screen and seeing only one pixel.

The new sensor system, described in the Feb. 3 issue of Science, could allow government agencies to figure out what's really happening to fish populations, which many environmentalists and scientists believe are in rapid decline.

"The world's fish stocks are being depleted at a horrible rate," said Makris, who attributed declining populations to overfishing, a problem that has been abetted by inaccurate fish counts. "One of the reasons (for the inaccurate counts) is the darkness in the ocean. You don't know what's going on."

Continue...

News Id		Source	Stamp	country
4251	How the puffer fish gets you high, zombifies you, and kills you	gizmodo	2012-01-27	US
4252	Christiana Bradley And Teddy Carr Move Up Rankings In Floridas Bassmaster Southern Open	underwatertimes	2012-01-25	US
4253	Tourists plead ignorance of fishing laws	ODT	2012-01-13	NZ
4254	Fish Offspring Grow Best At Same Temperature As Parents	underwatertimes	2012-01-12	CA
4255	‘We caught a sea monster’: Florida fishermen reel in massive grouper	Global News	2021-02-18	US
4256	Lead used in fishing rod poses risk to Istanbuls Bosporus	DAILY SABAH	2021-03-15	TR
4257	Floridas New Invasive Species Is A 10-Foot Long River Monster	CBSMiami	2021-03-19	US
4258	Coroner frustrated; Canterbury dive death remains a mystery	NZ Herald	2021-03-12	NZ
4259	Scientists Use Satellite Data To Aid Fishermen In Butterfish Conundrum	underwatertimes	2012-01-06	US
4260	How To Disembowel 30 Salmon In Under A Minute	gizmodo	2011-12-29	AU
4261	New Jersey bill reduces fishing fines for anglers who do not register	pressofatlanticcity	2011-12-16	US
4262	Salmon virus in B.C. for decades, say biologists	CBC News	2011-12-15	CA
4263	Hopping Lungfish Suggest Fish First Took Steps Underwater	Underwatertimes	2011-12-12	US
4264	Fishing for monsters out of the abyss in Susquehanna River	York Daily Record	2021-03-13	US
4265	Revealed: seafood fraud happening on a vast global scale	theguardian	2021-03-15	UK
4266	Scientists rejoice over discovery of native wetland fish thought to be extinct	ABC Central Victoria	2021-03-06	AU
4267	Did Canada cover up deadly salmon virus? Report suggests yes	latimesblogs	2011-12-01	CA
4268	We are Running Out Of Cod	businessinsider	2011-11-28	UK
4269	Fishing rod doubles up as a rifle, too	ubergizmo	2011-11-23	US
4270	Warning As Edible Lionfish Found With Poisonous Ciguatoxin	Underwatertimes	2011-11-22	VI
4271	The Fish That Hunt Like Lions	smithsonianmag	2011-11-21	EG
4272	Fishing Nations Approve Overhaul Of Bluefin Tuna Tracking System	njtoday	2011-11-21	JP
4273	Fishermen to lawmakers: Don't scrap fishing system	Associated Press	2011-11-16	UK
4274	Украинские экологи спрогнозировали дефицит питьевой воды в стране	rusnext	2021-03-23	UA
4275	cientists uncover Antarctic sea creatures trapped under ice for 50 years	livescience	2021-03-20	US

170 of [217 - pages.]