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Blue Crawdad
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Blue Crawdad

by John Tobias

Gallery: WildlifePosted December 18, 2012161 views2 comments
Took this photo at the Sugar Grove Nature Center. This crawdad has been at the center since it was very small, but is now turning blue. Don't know why, but it is colorful.

Canon PS SX30IS
1/100 @ F2.7 ISO 400
4mm

Comments

2 comments
Comment posted by Vincent Grafhorst on December 19, 2012 at 12:14 AM
Hi John, maybe it does not get enough oxygen? Or maybe it is cold?:confused: Cool to see something we normally do not see in this gallery. Technically it is always a challenge to shoot through glass and also here it looks like (although I cannot be 100% sure judging only this small version) there are some reflections visible in the top 1/3rd. Further the bubbles at the top are also evidence of the glass wall. Nonetheless an interesting documentary shot of a blue crawdad. :smile:
Registered on February 24, 2006, 504 Posts, 7203 Comments
Comment posted by Gary Gulash on December 21, 2012 at 11:36 PM
Interesting and unusual subject John. Could use another round of sharpening to my eye to be perfect. I have seen this color blue in crayfish in prairie ponds of southern Saskatchewan. I was told it was a genetic trait, something to do with copper metabolism?
Registered on January 28, 2005, 879 Posts, 12098 Comments