Re: NANFA-- Freckled Madtom observations

sajjad_at_lateef.org
Sun, 13 Jan 2002 08:41:19 -0600 (EST)

On Sat, 12 Jan 2002, Denkhaus, Robert wrote:
> Recently though, I have noticed a new behavior primarily in the 30 gallon
> tank at home. The madtoms are not venturing under cover of any kind and are
> instead placing themselves in a vertical position (head down, usually)
> amongst the plants. They will sit motionless like this for hours causing
> family members to yell at me to come get the dead fish out. A friend has a
> slender madtom that exhibits the same vertical behavior but is squeezed
> between a log and the glass so I see that as a tactile response. Has anyone
> else seen anything like this?

I've observed baby bullheads standing on their tails, just swaying in
the current, appearing almost lifeless. Could this be play or a defense
mechanism? 

-- 
Sajjad Lateef   email: sajjad <at> acm.org 
Chicago, IL     web: http://www.lateef.org/sajjad/




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