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  • Results 1 to 12 of 12

    Thread: Life Expectancy Of "Kept" Koi

    1. #1
      MCPS Mike is offline KOI SENSEI
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      Question Life Expectancy Of "Kept" Koi

      While Reading at Roark's yesterday I ran across something that got me thinking.
      We all know the story of Hanoko, but how long can we expect our koi to live. (Barring any number of unforseen events.)

      I still have all 5 of my original Koi. They are now approaching 12 years old.
      Next....

    2. #2
      Bob Winkler's Avatar
      Bob Winkler is offline Tooth Carpenter, Wine Drinker, but always Koi Kichi
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      I have one of my original koi, it is 16....the rest were left two houses ago in their original pond
      Best Regards,

      Bob Winkler

    3. #3
      JPR is offline Inactivated
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      20-24 years is a good natural lifespan for koi. Solid colored koi can live longer and 35 is not unheard of. In fact Hanoko is now believed by Japanese experts to have been 28 years old when she died. JR

    4. #4
      emmalou is offline Inactivated
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      JR...why solid colored koi and longer lives?

    5. #5
      KoiKid is offline Koiphen Kid
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      THat's interesting. Maybe it's because of their genes? To devolop some of those patterns, some could be bred with paretns, and have bad genes. It shortens their life and makes them weaker. I know that's what they did with guppies, which used to be one of the hardiest fish you could buy.
      -Cat
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    6. #6
      MCPS Mike is offline KOI SENSEI
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      Quote Originally Posted by JPR
      20-24 years is a good natural lifespan for koi. Solid colored koi can live longer and 35 is not unheard of. In fact Hanoko is now believed by Japanese experts to have been 28 years old when she died. JR
      Wow ! If Hanoko was only 28...that really changes the story

    7. #7
      Fast Eddie's Avatar
      Fast Eddie is offline Super Member
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      JR
      Do you know how that was determined? Otalith?

    8. #8
      JPR is offline Inactivated
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      The original mistake was made when one scientist counted rings on the scale. later on, after the story spread like wildfire, the greater scientific community poured in and pretty much debunked the technique. they came up with a more modest age of 28 years. But interestingly enough, it was too good a story and too many people fell in love with the story so the facts released a year or two later were pretty much ignored. Even today the story of Hanoko is repeated in garden centers, pop mags and the net as factual.

      Solid colored koi are usually closer to the wild type and have both a higher survival rate and longer life. People donlt realize it but different varieties of koi can have different allele counts ( points on the gene count). And many physiological differences exist between true wild carp and the very refined gosanke.
      There is a truly documented carp in one of the European zoological parks ( name escapes me at the moment) that is a huge. I seem the records show that the fish was brought to the aquarium 60 or 70 years ago, if I remember correctly. I have a picture somewhere? I'll try and get it posted tonight.

    9. #9
      emmalou is offline Inactivated
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      Thanks JR.

    10. #10
      paulw is offline Senior Member
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      They say that koi in a heated pond want live as long as a koi in a unheated pond anyone else heard of this and any explanation on the matter would be good.
      Koi keepers are the friendliest people
      rgds
      paul

    11. #11
      Fast Eddie's Avatar
      Fast Eddie is offline Super Member
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      Quote Originally Posted by paulw
      They say that koi in a heated pond want live as long as a koi in a unheated pond anyone else heard of this and any explanation on the matter would be good.
      Jrs post on the second page: #13
      http://www.koiphen.com/forums/showthread.php?t=12990

      I'm sure he has explained it other places on here too if you do a search.

    12. #12
      savannahrobinson's Avatar
      savannahrobinson is offline Master Photographer of Glare and Bubbles
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      I expect my koi to outlive me - if I ever stop learning new idjit ways to kill fish.

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