Goldfish Teller Lake

Goldfish Teller Lake, a few of cyprinid fish drop into a Colorado lake, apparently by a pet owner years past, have reproduced and thousands of the non-native fish currently threaten autochthonal aquatic species, state life officers aforementioned on weekday.

Rangers in Boulder County last month detected swarming colleges of the cyprinid fish in an exceedingly semi-rural lake, Colorado Parks and life interpreter Jennifer Churchill aforementioned.

The pet fish, a sort of carp not native to North America, currently variety between three,000 and 4,000 and state biologists ar reviewing the most effective thanks to take away the invasive species, she said.

"We might use electrofishing or find yourself exhausting the lake," Churchill aforementioned.

Electrofishing entails hanging a eager beaver from a ship into the water. an electrical current emitted by the device stuns the fish and forces them to the surface wherever they will be webbed alive.The shock technique was wont to take away nearly a pair of,300 cyprinid fish from a close-by lake 3 years past, Churchill aforementioned.

If the invasive cyprinid fish escape into waterways downstream, they cause a threat to native species like Ictalurus punctatus, sunfish and blue gill sun fish, life officers aforementioned.

"Non-native species may be devastating to native populations by inflicting malady outbreaks and making competition unbalance," aforementioned Ken Kehmeier, a senior aquatic scientist with Colorado Parks and life.

The amerciable introduction of non-native aquatic associate degreeimals into Colorado waters is an in progress management drawback, state life officers aforementioned.

In addition to unwanted pet fish, some anglers dump fish of their own selecting into lakes, rivers and streams.

While some Colorado waters ar equipped non-native fish, they're solely done thus once rigorous testing to assure the fish not upset the native system, state scientist mount Swiggle aforementioned.

Churchill aforementioned authorities ar seeking the public's facilitate to find out UN agency drop the cyprinid fish into the Boulder lake.

Whichever technique is employed to get rid of the fish, she said, they're going to seemingly be fed to raptors at a neighborhood life rehabilitation facility.

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