New Acoustic Telemetry System Helps Explain Salmon Migration; 'A Clearer, More Complete Picture'

New Acoustic Telemetry System Helps Explain Salmon Migration; 'A Clearer, More Complete Picture'

Source: Underwatertimes

1/8/2010

New Acoustic Telemetry System Helps Explain Salmon Migration; 'A Clearer, More Complete Picture'

A new acoustic telemetry system tracks the migration of juvenile salmon using one-tenth as many fish as comparable methods, suggests a paper published in the January edition of the American Fisheries Society journal Fisheries. The paper also explains how the system is best suited for deep, fast-moving rivers and can detect fish movement in more places than other tracking methods.

The Juvenile Salmon Acoustic Telemetry System (JSATS) estimated the survival of young, ocean-bound salmon more precisely than the widely used Passive Integrated Transponder (PIT) tags during a 2008 study on the Columbia and Snake rivers, according to the results of a case study discussed in the paper. The paper also concludes that fish behavior is affected least by light-weight JSATS tags compared to larger acoustic tags.

"Fisheries managers and researchers have many technologies to choose from when they study fish migration and survival," said lead author Geoff McMichael of the Department of Energy's Pacific Northwest National Laboratory.

"JSATS was specifically designed to understand juvenile salmon passage and survival through the swift currents and noisy hydroelectric dams on the Columbia River," McMichael continued. "But other systems might work better in different circumstances. This paper demonstrates JSATS' strengths and helps researchers weigh the pros and cons of the different fish tracking methods available today."

Scientists at PNNL and the U.S. Army Corps of Engineers' Portland District co-authored the paper. PNNL and NOAA Fisheries began developing JSATS for the Corps in 2001.

Snake River

Salmon, Atlantic

Continue...

News Id		Source	Stamp	country
4226	Florida Law Makes Serving Local Fish an Increasing Challenge	browardpalmbeach	2012-03-15	US
4227	Japan's Tsunami-Stricken Fishermen Chart New Course		2012-03-14	JP
4228	Malaysian fisherman released after three-and-half-year prison sentence	the borneo post	2012-03-13	MY
4229	St. Lawrence River named best place to fish in the country	7 News	2021-03-20	US
4230	Historic River Pollution Threatens Coastal Great Lakes Fish	Associated Press	2021-03-28	US
4231	Black fish was rife in industry across Scotland for decades, says convicted fisherman	shetlandtimes	2012-03-02	UK
4232	What Makes A Robot Fish Attractive? Hint: It's In The Moves	Underwatertimes	2012-03-01	US
4233	Puffer fish chases laser in viral video	Kim I. Hartman	2012-02-25	US
4234	Robot fish prototype leads school of real fish behind it	theverge	2012-02-24	US
4235	Royal fish returns after 46 years at sea	independent	2012-02-19	IE
4236	Fish hybridise themselves extinct in Alpine lakes	newscientist	2012-02-16	CH
4237	Marine Scientists Awarded Grant To Study Ciguatera Fish Poisoning	underwatertimes	2012-02-15	US
4238	First-time angler catches record-breaking fish in English Channel	metro	2012-02-15	UK
4239	Resident recounts the trip water takes from local hills to the ocean	VMS	2016-07-13	CA
4240	A Community Coming Together for Kokanee Conservation	bcfishn	2021-03-28	CA
4241	Salmon farms instigate open door policy for welfare inspectors	The Fish Site	2021-03-25	UK
4242	Reducing global warming matters for freshwater fish species	Radboud University Nijmegen	2021-03-15	NL
4243	Indiana angler catches record-breaking whitefish	foxnews	2021-03-22	US
4244	Missouri angler catches 112-pound invasive black carp	foxnews	2021-03-26	US
4245	Tribes Call on Biden, Congress to Remove Snake River Dams	Associated Press	2021-03-25	CA
4246	Fisherman in Ukraine reels in boy, 11, who got himself stuck on sheet of ice, video shows	foxnews	2021-03-24	UA
4247	Scottish fish farming companies given millions in grants despite huge profits	thenational	2021-03-14	UK
4248	Anti-Freeze Fish Of Antarctica Threatened By Climate Change	Underwatertimes	2012-02-13	CA
4249	Petition Seeks International Investigation Of Canadas Farmed Fish Operations	underwatertimes	2012-02-07	CA
4250	Calif. salmon return is encouraging	upi	2012-02-03	CA

169 of [217 - pages.]