Unusual occupants of river

[RobinP]

Spotted these some time ago in my local river, wonder where they came from and whether they will survive.

[galanthus]

That's not good, let's hope they don't survive Not sure if you need to report that to someone ? Perhaps someone else knows

[ron1863]

Are they Koi Carp, I thought they were too expensive to toss away.

[Kayleigh]

Originally Posted by ron1863

Are they Koi Carp, I thought they were too expensive to toss away.

They look like gold fish

I doubt they will last long either a heron will get them or pike.

[mh68]

Originally Posted by RobinP

Spotted these some time ago in my local river, wonder where they came from and whether they will survive.

What size were they? They`ll be magnets for every predator on the river if theyre of a takeable size

Mark H

[DavyG]

I caught a similar koi carp in the river Werre in Germany about 20 years ago, it was about 4lb in weight and was one of several known to be there.

They may well survive and grow, just another species of carp really.

Dave

[deer boy]

It's nemo

[RobinP]

They were quite big, about 8-9 inches long and several more were seen, maybe someone moving house and couldn't get rid of them? Not exactly a threat to local wildlife, maybe a help as an alternative food source to local predators?

[mh68]

Originally Posted by RobinP

They were quite big, about 8-9 inches long and several more were seen, maybe someone moving house and couldn't get rid of them? Not exactly a threat to local wildlife, maybe a help as an alternative food source to local predators?

Thats an easy takeable size for most predators. If there are Pike present I dont think they`ll last too long, even a Large Chub would have no problem taking a fish of this size. Not forgetting mammalian predators such as Mink and Otters,and bird such as Herons and Cormorants.
As you say, most likely dumped from someones pond or fishtank...

Mark H

[Dogghound]

It is irresponsible dumping Goldfish like these, they pose a risk of disease and hybridize with crucian carp although crucians are unlikely to be found in a river, as the others have said they wont last long.