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Coalition releases study on cutting off Asian carp from Lake Michigan

Asian carp should be permanently cut off from Lake Michigan by sheet pile or impermeable land bridges, effectively re-reversing the flow of the Chicago River, according to a study set to be released Tuesday by a coalition ...

Space & Earth / Environment

created Feb 02, 2012 | popularity not rated yet | comments 0

Researchers demonstrate new DNA detection technique

A team of researchers from the University of Notre Dame have demonstrated a novel DNA detection method that could prove suitable for many real-world applications.

Biology / Biotechnology

created Dec 16, 2011 | popularity 5 / 5 (5) | comments 0 | with audio podcast

Murky future for giant Philippine crocodiles

Deep inside the Philippines' largest marshland, tribespeople who once revered crocodiles as mystical creatures say they now feel terrorised by them.

Biology / Plants & Animals

created Oct 12, 2011 | popularity 5 / 5 (1) | comments 0

Risk assessments to block invasive wildlife pay off, study shows

(PhysOrg.com) -- A University of California, Davis, environmental and resource economist collaborated on a study that was the first to estimate the net benefits of screening potentially invasive wild animals, ...

Biology / Ecology

created Aug 29, 2011 | popularity 5 / 5 (1) | comments 0

Efforts to close canal to Great Lakes

Efforts are underway to try and get the river locks on the Chicago Sanitary and Ship Canal closed in order to stop the spread of two invasive species of fish known as the Asian carp and the Snakehead.

Biology / Ecology

created Aug 08, 2011 | popularity 4 / 5 (4) | comments 2 | with audio podcast report

Genetic evidence clears Ben Franklin (w/ Video)

The DNA evidence is in, and Ben Franklin didn't do it. Genetic tests on more than 1,000 Chinese tallow trees from the United States and China show the famed U.S. statesman did not import the tallow trees ...

Biology / Ecology

created Jul 29, 2011 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Time to let science drive Great Lakes policy on Asian carp, experts say

The threat Asian carp pose to the Great Lakes community may be politically controversial, but pales in comparison to the costs and danger of continuing to wring hands over established facts. It's time, a Michigan ...

Biology / Ecology

created Jun 30, 2011 | popularity not rated yet | comments 2

Bighead carp snagged in St. Croix River

It's an ugly brute with a gaping mouth and eyes that hang low on the bottom of its face. Someday soon, with two of its equally odious cousins, it could take over Minnesota's rivers and lakes, squeezing out native species. ...

Biology / Ecology

created Apr 22, 2011 | popularity 4.5 / 5 (2) | comments 0

Live carp smuggled into Canada

Smugglers keep hauling live Asian carp from Southern fish farms bound for food markets in the Lake Ontario city of Toronto, even as the U.S. Army Corps of Engineers studies how to keep the fish from swimming into the Great ...

Biology / Ecology

created Mar 17, 2011 | popularity not rated yet | comments 0

Study validates Asian carp research

The use of environmental DNA (eDNA) by scientists from the University of Notre Dame and The Nature Conservancy to detect invasive Asian carp in the Chicago-area waterway has been validated in Conservation Letters, a new ...

Biology / Ecology

created Jan 05, 2011 | popularity 5 / 5 (1) | comments 0

Fight escalates over plan to keep Asian carp out of the Great Lakes

The Obama administration on Thursday released its 2011 battle plan in the ongoing fight to keep Asian carp from invading the Great Lakes, a plan that calls for no waterway closures in the Chicago area. Less than three hours ...

Biology / Ecology

created Dec 17, 2010 | popularity 5 / 5 (2) | comments 11

Invisible invasive species

While Asian carp, gypsy moths and zebra mussels hog invasive-species headlines, many invisible invaders are altering ecosystems and flourishing outside of the limelight.

Biology / Ecology

created Dec 07, 2010 | popularity 4.6 / 5 (7) | comments 2 | with audio podcast

Asian carp create nagging fear in Lake Erie towns

Well before dawn, Todd Loop takes his fishing tug onto Lake Erie in pursuit of yellow perch, walleye and other delicacies — a livelihood that has sustained his family for three generations but faces a ...

Biology / Ecology

created Nov 26, 2010 | popularity 5 / 5 (4) | comments 0

Fence goes up to keep Asian carp out of Chicago canal

The latest weapon in the fight against Asian carp doesn't look much like a weapon at all: It's a 13-mile concrete and steel mesh fence that splits the narrow divide between the Des Plaines River and the Chicago Sanitary and ...

Biology / Ecology

created Nov 01, 2010 | popularity 5 / 5 (1) | comments 0

Judge focuses on carp DNA in lawsuit over locks

(AP) -- The reliability of DNA testing suggesting Asian carp may already be in waterways near Lake Michigan was the focus of final arguments Monday in a lawsuit seeking the closure of Chicago-area shipping locks to halt ...

Biology / Ecology

created Oct 18, 2010 | popularity 5 / 5 (1) | comments 0

Carp

Carp are various species of oily freshwater fish of the family Cyprinidae, a very large group of fish native to Europe and Asia. The cypriniformes (family Cyprinidae) are traditionally grouped with the Characiformes, Siluriformes and Gymnotiformes to create the superorder Ostariophysi, since these groups have certain common features, such as being found predominantly in fresh water and that they possess Weberian ossicles (an anatomical structure originally made up of small pieces of bone formed from four or five of the first vertebrae); the most anterior bony pair is in contact with the extension of the labyrinth and the posterior with the swimbladder. The function is poorly understood, but this structure is presumed tp take part in the transmission of vibrations from the swimbladder to the labyrinth and in the perception of sound, which explains why the Ostariophysi have such a great capacity for hearing.

Most cypriniformes have scales and teeth on the inferior pharyngeal bones which may be modified in relation to the diet. Tribolodon is the only cyprinid genus which tolerates salt water, although there are several species which move into brackish water, but return to fresh water to spawn. All of the other cypriniformes live in continental waters and have a wide geographical range.

Some consider all cyprinid fishes carp, and the family Cyprinidae itself is often known as the carp family. In colloquial use, however, carp usually refers only to several larger cyprinid species such as Cyprinus carpio (common carp), Carassius carassius (Crucian carp), Ctenopharyngodon idella (grass carp), Hypophthalmichthys molitrix (silver carp), and Hypophthalmichthys nobilis (bighead carp). Carp have long been an important food fish to humans, as well as popular ornamental fishes such as the various goldfish breeds and the domesticated common carp variety known as koi. As a result, carp have been introduced to various locations, though with mixed results. Several species of carp are listed as invasive species by the U.S. Department of Agriculture, and worldwide large sums of money are spent on carp control.

For more information about Carp, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.

Related topics: fish , great lakes