anyone know where i can get information on them. ie: color changes(with time of year and temp.) and so on..  sorry if this is an old topic :-?

Good question.

May I suggest Googeling crawfish and you may find your answer in the research for crawfish.

I am from Louisiana and all I can say is that they turn red after you cook them and they are fantastic.

They are also the happiest animals in the world. They get their tails squeezed and their heads sucked.

It don't get any better than that!

Like Sam said Google Crawfish, then look for articles by LSU; unless your doing research for school they colors for fishing don't matter cause they all work.

Sam I had some Etouffee Monday night; Ate a couple for you  

Thanks, Catt.

I bet it was good, too.

Great question!  And, I do believe sometimes matching the crawfish color does matter.  Alger, I cannot answer this for you, wish I could.  I will be monitoring this post also so I can learn.

 Want to come back in my next life as a crawfish, Sam ! alger319, it's unbelievable how many kinds (pretty much look the same to me) and colors there are. I read somewhere that TN has 5 different kinds...

                         As Ever,

                          skillet

I was thinking about posting this same question earlier today actually.

I think at 50 or 55 degrees in the spring and fall they molt (shed their shell) and are left with a red/orange shell until it hardens and turns brown again.

I have seen blue in the fall and i have seen orange in the fall so I don't know exactly what they do or when.  

Google crawfish coloring,as been stated I found a great link for PA crawfish. I also agree that most any crawfish color will work. I basically stick to the reds and browns.

Take a look at this article.

searchwarp.com/swa53984.htm

HEy Kevin Hello and  

You got any relatives named Ron as in #49

It is my understanding that crawfish can be any number of colors any time of the year. I have found that the best way to determine what color to use is to set a few traps and catch some. Then match the predominant color.

Hey Fluke what the   is a crawfish trap? ;D

ok after some research (which i do too often due to college) i found some neat stuff on craws...they have Primary colors: Black, Brown, Green, and Grey --Secondary colors: Blue, Red, Orange, White, Yellow, and Amber.(which is usually during their molting period). Now i found mixed info on when they molt, i found that they mate in 50-55 degrees(their spawning period) and when finished the male molts and drops his (male parts). aslo i found they can molt up to 15 times a year for the adult craws(young ones more). their sizes on average are from 2-6 inches but bass prefer 3-4 inch ones. they usually live close to cover(in non-stagnant water) in well oxygenated water(shoreline- 20ft.) but can be used deeper(but will sometimes be mistaken for shad) i know there's a ton more to list so yall go ahead and add some more...