Dreaded carp: Can they be stopped?

Dreaded carp: Can they be stopped?

Source: Star Tribune

8/12/2011

DNA from the invasive silver carp has been found at 22 sites in the St. Croix River, a development that has deepened despair about the imminent arrival of the notorious leaping fish and doubts that state and federal officials can do anything to stop it.

The Minnesota Department of Natural Resources announced Thursday that 22 of 50 water samples taken between St. Croix Falls and Franconia tested positive for silver carp DNA. The samples did not test positive for the other three species of Asian carp that are believed to moving upriver from Illinois, and another 50 samples from the Mississippi River were negative.

The results are not conclusive evidence that the fish are living and breeding in the St. Croix -- none has been found in the river -- or that they are absent from the Mississippi, DNR officials said. The DNA could have come from dead carp, live carp someone dumped in the river or fish pellets used in hatcheries.

Still, it ratchets up the fear considerably, they said.

"This is disappointing news," said DNR Commissioner Tom Landwehr.

News Id		Source	Stamp	country
4651	Hatchery Fish May Hurt Efforts To Sustain Wild Salmon Runs; 'The Data Are Now Pretty Clear'	Underwatertimes	2009-07-10	US
4652	‘Big day for UK seas’ as bottom trawling ban in four protected areas proposed	the guardian	2021-02-02	UK
4653	Musquash River may again be home to hydro power	CBC News	2015-09-04	CA
4654	USGS, ERDC Scientists installing experimental underwater acoustic deterrent system to stop spread of invasive Asian carp	wqad	2021-02-04	US
4655	The 495 species that got away for Sussex angler	theargus	2009-05-11	UK
4656	Brisbane Scientist Discovers New Species Of Fish; 'A Most Exciting Discovery'	Underwatertimes	2009-04-29	AU
4657	CIBA achieves breakthrough in captive breeding of grey mullet fish	the hindu	2021-01-29	IN
4658	Call to modernise, not expand, Scottish fishing fleet	bbc	2021-01-29	UK
4659	Metre-long sturgeon discovered in Brierfield garden centre spring clean		2009-04-16	UK
4660	The bizarre South American armoured fish found in a Leicestershire canal	Daily Mail	2009-03-29	US
4661	Pharmaceuticals Discovered In Fish In Five Major US Cities; 'Highest Concentrations In Fish Livers'	Underwatertimes	2009-03-25	US
4662	Blind Fish's Sensors May Spur Development Of New Generation Of Active Sonar	Underwatertimes	2009-03-24	US
4663	Snakehead fish now in Alabama? Sounds like it's a possibility	AL	2009-03-23	US
4664	Rare 'funny-looking' lumpsucker fish found in Cornwall	Cornwall News	2021-02-05	UK
4665	A Single Altered Gene Can Make Fish Fins More Like Limbs	smithsonianmag	2021-02-04	US
4666	Human-generated Sounds May Kill Fish	Underwatertimes	2009-03-12	US
4667	Vampire fish found in stream in northern Burma	Mirror.co.uk	2009-03-11	UK
4668	Invasive species are greatest threat to Northwest salmon, report says	The Oregonian	2009-03-05	US
4669	Lake Michigan Fish Populations Threatened By Thriving Junk Food Mussel, Decline Of Nutritious Tiny Shrimp	Underwatertimes	2009-02-19	US
4670	Two-headed fish probe finds no pesticide in water	abc	2009-02-18	US
4671	Historical Photographs Expose Decline In Florida's 'Trophy' Fish; 'Large Fish More Abundant In The Past'	Underwatertimes	2009-02-17	US
4672	Anglers keen to catch 'Phar Lap'	dailyexaminer	2009-02-18	AU
4673	Couple shaken after snowmobile crashes into fish house on Lake Minnetonka	fox news	2021-02-01	US
4674	Fast-growing fish farming can help the environment, researcher says	CBC News	2009-01-02	US
4675	Zoo 'first' to breed dragon fish	bbc	2009-01-14	UK

186 of [221 - pages.]