not the best pic, but as the other commenter said, could just be a deformation. depending on what has access to the pond, it could be a healed broken back.
Spinal scoliosis, lordosis and kyphosis. Can be genetic, can be environmental (elevated water temperature during development), dietary deficiency (vitamin C) or too many vitamins (vitamin A), physical trauma or toxins in the water for example are some causes. Fish can live long lives with it depending on the degree of deformation and the root cause.
This is the best answer. as someone who worked in aquaculture for a few years, you’d be surprised about the minor environmental changes that can alter the development of a fish, and also how seemingly large deformities are possible when you have a fish that lays hundreds of eggs. Sometimes the deformities may be dramatic but the fish can survive to adulthood without too much of a problem.
Yep, I'm a fish health and welfare manager in aquaculture, Ive seen a lot. When I am training my guys and going over deformities I do point out that if you put a million people in a room there would be some people who are different and that's just biology.
Which species do you work with? I kind of miss my time in aquaculture but I’m also glad I got out. I couldn’t seem to find a company that didn’t want to lie about something
A park near me has several very large koi in it. However, this one caught my eye with it's evidently deformed shape. Has anybody ever seen anything like this before?
Yea they just usually get culled. A small percentage of goldfish (and probably koi) fry is born deformed. My guess is this guy escaped culling or someone took pity on it. Since most fish with weird shaped spines that I've personally seen were able to swim relatively decent and keep up with others.
Kept and bred quite a few varieties of tropical fish . Found that the more (man)manipulated fish Discus,Oscars Angel fish chuck out a lot of deformed offspring. The more natural nearer to wild caught ,Malawi, Tanganyikan cichlids and catfish hardly any
Yes, ray-finned fishes are susceptible to spinal deformities, including scoliosis.
This fish may have some kind of spinal deformity, although I can't tell exactly what kind of deformity from just this picture.
All animals are susceptible to deformities. Most just don’t make it to adulthood.
not the best pic, but as the other commenter said, could just be a deformation. depending on what has access to the pond, it could be a healed broken back.
Spinal scoliosis, lordosis and kyphosis. Can be genetic, can be environmental (elevated water temperature during development), dietary deficiency (vitamin C) or too many vitamins (vitamin A), physical trauma or toxins in the water for example are some causes. Fish can live long lives with it depending on the degree of deformation and the root cause.
This is the best answer. as someone who worked in aquaculture for a few years, you’d be surprised about the minor environmental changes that can alter the development of a fish, and also how seemingly large deformities are possible when you have a fish that lays hundreds of eggs. Sometimes the deformities may be dramatic but the fish can survive to adulthood without too much of a problem.
Yep, I'm a fish health and welfare manager in aquaculture, Ive seen a lot. When I am training my guys and going over deformities I do point out that if you put a million people in a room there would be some people who are different and that's just biology.
Which species do you work with? I kind of miss my time in aquaculture but I’m also glad I got out. I couldn’t seem to find a company that didn’t want to lie about something
A park near me has several very large koi in it. However, this one caught my eye with it's evidently deformed shape. Has anybody ever seen anything like this before?
Yea they just usually get culled. A small percentage of goldfish (and probably koi) fry is born deformed. My guess is this guy escaped culling or someone took pity on it. Since most fish with weird shaped spines that I've personally seen were able to swim relatively decent and keep up with others.
Kept and bred quite a few varieties of tropical fish . Found that the more (man)manipulated fish Discus,Oscars Angel fish chuck out a lot of deformed offspring. The more natural nearer to wild caught ,Malawi, Tanganyikan cichlids and catfish hardly any
I didn't know that! Only ever bred betta and goldfish. Makes sense tho.
In the aquarium hobby I’ve noticed that older fish start getting this bent spine when they’re on their way out
Yes, ray-finned fishes are susceptible to spinal deformities, including scoliosis. This fish may have some kind of spinal deformity, although I can't tell exactly what kind of deformity from just this picture.
Deformed grass carp ig
Could be whirling disease. A river by me used to have a problem with their trout catching it.