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[cohokid]

well i landed a small jack sprin the other day it was about  1lb i have caught kokanee that could eat it LOL well i wanted to know you personal smallest jack spring landed

[THE_ROE_SLINGER]

I have caught spring jacks that were pushing 8 inches.lol Your jack could probobly of ate mine. I guess i winl 

[cohokid]

LOL 8 inches that sweet when u here the word "spring" the first thing that comes to mind is 15-30 pound monster not something 8 inches or a puond. in the cap hatchery i saw jack that were that big lol

[FishinDawg]

lol, i guess i got one around 3 or 4 pounds, damn i lost already. but look on the bright side...mine could have eaten both of yours. 

[Sterling C]

I have caught several coho jacks in the 10-12 inch range.

[sliverbullet]

in bamfield i caught a little spring off the dock mustve been 3 or 4 inches

[bigguy]

Excuse my ignorance (lack of knowledge )  how does a jack become a jack??

[Sterling C]

A jack is simply a fish the matures at a younger age. Hence, it returns to the river earlier than its counter parts and is smaller.

Here's a pic of a jack coho from a few years ago. You probably cannot tell from the picture but I believe that one only measured around 13 inches.

[GoldHammeredCroc]

Most likely natures way of ensuring enough males return each year as brood stock.

[funfisher]

I believe that the coho jacks are infertile. Can anyone confirm this?

[Sterling C]

Are you sure it wasn't a smolt or a trout looking for a meal?

[kellya]

6 inch jacks? my jacks are ushually 5lbs. Arent salmon from the ocean not considered jacks? Do these small 1 lb chinook jacks come back after one year?

[No_way]

6 inch jacks? my jacks are ushually 5lbs. Arent salmon from the ocean not considered jacks? Do these small 1 lb chinook jacks come back after one year?

A "normal" spring salmon is one that returns when it is between 4 and 8 years old.  That's why they very so much in size and can be so big.  I guess a jack would be one that returns when it is 1, 2, or 3 years old.  So the 1lbs would have to be only a year or 2 old.

[kellya]

I dont know how many are 8 year fish. Im guessing slim to none come back that late. Most chinook are 3-5 years with some 6 year old fish. I havent heard of 8 year chinook im guessing its not impossible just unlikely. The guy i talked to said some 5 year old fish are much bigger than 6 year olds. Can anyone verify there is not 8 year olds or that they are very very rare?

[kellya]

The biologist i worked with this week told me no there is 6 year fish i could see some 7 year fish maybe but not 8. The average chinook would definatly not be an 8 a 4-8 year.