Sexing the Silver Arowana

Crustman

Gambusia
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Nov 20, 2006
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Im4u2nV;1346057; said:
thx for the GREAT info...going to pick up some silvers and i hope i can tell wheter it's a male or female..


You can't see any difference until they are older. I would say 18 inches
 

Bderick67

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Aug 18, 2006
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Crustman;1346233; said:
You can't see any difference until they are older. I would say 18 inches
Good observation, I really be looking at alot of silver pics lately and seems on smaller silvers the traits aren't as easy to define.
 

Bderick67

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Aug 18, 2006
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In the pic below I have tried to illustrate the differences between my two silver aros, other then the protuding jaw. The colored lines only identify the differing traits per my observation and are not of any actual measurements.

Red: seems to be a less of an angle on the male

Green: the jawbone is broader on the male

Blue: the male's body has less height then the female(male is 1-1.5" longer)

Yellow: previously I stated the males pelvic fins to be longer. Actually the pelvic and anal fins are positioned closer together on the male. This gives the illusion that the pelvic fins are longer on the male

arocomparesion.jpg
 

DeLgAdO

Feeder Fish
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Jun 1, 2005
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Bderick67;1367162; said:
In the pic below I have tried to illustrate the differences between my two silver aros, other then the protuding jaw. The colored lines only identify the differing traits per my observation and are not of any actual measurements.

Red: seems to be a less of an angle on the male

Green: the jawbone is broader on the male

Blue: the male's body has less height then the female(male is 1-1.5" longer)

Yellow: previously I stated the males pelvic fins to be longer. Actually the pelvic and anal fins are positioned closer together on the male. This gives the illusion that the pelvic fins are longer on the male
the issue i have with this is that those differences in the length and angle of the body are so similar and yet slightly different, bring me to the conclusion that they are different because they are two different fish. Though every fish is anatomically consistent with its species they still have characteristics that make each individual fish unique. these sets of observations are really not significant enough to classify one as female and the other male.
 
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