Petshrimp.com Discussion Forum

I attach a frame grab from a YouTube video entitled "Blue Crayfish Molting" posted by pkgdz, but I am not sure which species it is - can you please help? If the pic is not enough have a look at the YT video - it's only around 30 sec long. Thanks, Colin. Blue crawfish pkgdz mlt2.jpg Blue cr...

Crayfish have external sperm storage and therefore external fertilization of the eggs. I would suggest that if your female has moulted then it would have to mate again in order to fertilize her eggs. This is because the sperm adheres to the female sternum (between her legs) and is cast off when the ...

Yes I thought that there were enough repeated examples for different species that one could get a good idea of the mating behaviour. One other thing puzzles me: there are several published studies which say that, for example, in the red claw crayfish the copulation position is female over male, and ...

Mustafa: thanks for your observations about crayfish mate attraction. Do you know anyone who might have recorded how long after observing a mating episode that eggs were laid by the female? Have you ever seen a male try and mate with a female who is already carrying eggs? As you might have guessed I...

It seems that mate attraction and advertizing receptivity is enigmatic in crayfish! I do not have any crayfish myself, but I have looked at videos on YOUTUBE and these do not provide any answer - although these are admittedly edited sequences rather than included the pre-mating and post-mating bits....

How do you tell when a female crayfish is reay to mate?
How does she attract a male?