How to tell a catfish's age?
Is there any way to approximate a cats age?
- Clarence Cremea
I'm not sure ,but get a hold of the DNR and they could get you to someone who would know.
- Jack Holsky
If you can lift it over your head with one hand, its between One and Five years old. If it takes two hands to lift it over your head, then its Five to
Ten years old. If you cant get its tail off the ground, then its Ten to Twenty years old. And finally, if you cant get it out of the water, its to old to mess with, so just cut your line and hope someone believes your story! :0a10:
Netmanjack of all the ways i heard to tell the age of a fish i relly think yours is the most correct. The way i do it is young cats hert when grabed wrong older cats finds are a lot duller.I will ask my boss just how you realy tell age because all i realy is size and limet. :rolleyes:
Originally Posted by Netmanjack
I dont know about all of that...
Sorry it took so long to get back here but i ask several fellow officers and i am sorry to say i got the same answer you have to ask a biolagest :0a15:
- Josh Davidson
Just this year a 92lb blue was caught and aged at 11yrs old. This seemed to shock a lot of fish biologists. They say the only accurate way to test the age of a fish is to closely examine a certain part of the fish. And the only way to do that is to kill the fish.
Originally Posted by BAITFISH
Oh okay Thankyou
Originally Posted by maddcatter
Catfish can be aged by taking a cross-section of their pectoral fin spines. If someone knows what they are doing he/she can literally dislocate the spine from the fish's shoulder and yank it off. It leaves a nasty-looking hole where the spine used to be but catfish are tough. Studies have shown that there is really no detrimental effect to the fish's survival after the spine is removed.
Anyway, biologists can cut a thin cross-section (using a jeweler's saw) of the spine, look at it under a dissecting scope, and count the rings...very similar to aging a tree. For fish with scales, you count the rings on their scales.
Madcatter is correct about killing fish for the best age estimate. Biologists use a fish's ear bones, called otoliths, to get the most accurate ages. Obviously a trade-off...and usually a lot more work!
Last edited by Fishgeek; 09-10-2005 at 12:08 AM.